{"id":15105,"date":"2022-12-16T16:24:08","date_gmt":"2022-12-16T10:54:08","guid":{"rendered":"https:\/\/www.interviewbit.com\/blog\/?post_type=web-story&#038;p=15105"},"modified":"2022-12-16T16:24:09","modified_gmt":"2022-12-16T10:54:09","slug":"a-quick-overview-of-depth-first-search","status":"publish","type":"web-story","link":"https:\/\/www.interviewbit.com\/blog\/web-stories\/a-quick-overview-of-depth-first-search\/","title":{"rendered":"A Quick Overview of Depth First Search"},"content":{"rendered":"<p><html amp=\"\" lang=\"en\"><head><meta charSet=\"utf-8\"\/><meta name=\"viewport\" content=\"width=device-width,minimum-scale=1,initial-scale=1\"\/><script async=\"\" src=\"https:\/\/cdn.ampproject.org\/v0.js\"><\/script><script async=\"\" src=\"https:\/\/cdn.ampproject.org\/v0\/amp-story-1.0.js\" custom-element=\"amp-story\"><\/script><link 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name=\"web-stories-replace-head-end\"\/><\/head><body><amp-story standalone=\"\" publisher=\"InterviewBit\" publisher-logo-src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/cropped-tumblr-logo.png\" title=\"A Quick Overview of Depth First Search\" poster-portrait-src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2022\/12\/cropped-depth-first-model-16th-week3.png\"><amp-story-page id=\"2ba48566-4303-4648-be14-d8b890969253\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#c0c0c0\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-22ae990b-24ec-4f61-9792-67850d36d3d5\">\n<div 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alt=\"InterviewBit-White-2\" srcSet=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png 2130w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-2048x681.png 2048w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1536x511.png 1536w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1024x340.png 1024w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-768x255.png 768w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-300x100.png 300w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-150x50.png 150w\" sizes=\"(min-width: 1024px) 20vh, 44vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:5.58252%;top:46.1165%;width:83.00971%;height:35.11327%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.5847953216374269% 0.5847953216374269% 0.5847953216374269% 0.5847953216374269% \/ 0.9216589861751152% 0.9216589861751152% 0.9216589861751152% 0.9216589861751152%\" id=\"el-5a03f828-20ca-4b52-b11f-7a23ec19dee9\">\n<h1 id=\"depth-first-search-traversal-of-the-graph\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.4407894736842106% 0;font-family:&quot;Merriweather&quot;,serif;font-size:0.728155em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"color: #fff\">Depth First Search \u2013 Traversal Of The Graph<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:9.95146%;top:92.23301%;width:80.09709%;height:13.26861%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-6f338729-862c-4acf-9ed6-e37e14299c8a\">\n<div style=\"position:absolute;width:100%;height:107.47869%;left:0%;top:-3.73934%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/media.tenor.com\/cgriPG-ob9QAAAAi\/fl%C3%A8che-arrow.gif\" alt=\"Fl\u00e8che Arrow Sticker\" srcSet=\"https:\/\/media.tenor.com\/cgriPG-ob9QAAAAi\/fl%C3%A8che-arrow.gif 498w,https:\/\/media.tenor.com\/cgriPG-ob9QAAAAk\/fl%C3%A8che-arrow.gif 90w\" sizes=\"(min-width: 1024px) 36vh, 80vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:7.03883%;top:83.98058%;width:73.30097%;height:5.66343%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6622516556291391% 0.6622516556291391% 0.6622516556291391% 0.6622516556291391% \/ 5.714285714285714% 5.714285714285714% 5.714285714285714% 5.714285714285714%\" id=\"el-37afe416-c675-4414-bdbf-55c1747bd284\">\n<h2 id=\"a-quick-overview\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13969370860927152% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"color: #e06e04\">A Quick Overview<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"881c1680-f6c7-4e2a-a639-216d468bb84c\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script 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style=\"position:absolute;pointer-events:none;left:9.2233%;top:40.45307%;width:79.36893%;height:38.83495%;transform:rotate(360deg);opacity:1\">\n<div id=\"anim-7ae6d773-53d7-4db5-94e3-7babf3b0ab6b\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-05d7b627-15de-48d2-b42e-b103529f738f\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6116207951070336% 0.6116207951070336% 0.6116207951070336% 0.6116207951070336% \/ 0.8333333333333334% 0.8333333333333334% 0.8333333333333334% 0.8333333333333334%\" id=\"el-a9b062b0-2d85-4283-90de-abebe426d93e\">\n<h2 id=\"dfs-is-an-algorithm-for-traversing-a-graph-by-exhaustively-visiting-all-nodes-it-involves-moving-forward-on-path-until-there-are-no-more-unvisited-nodes-then-backtracking-or-move-on-to-unvisited-pat\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.6678899082568811% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"color: #fff\">DFS is an algorithm for traversing a graph by exhaustively visiting all nodes. It involves moving forward on path until there are no more unvisited nodes, then backtracking or move on to unvisited path.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:0;top:-6.31068%;width:43.68932%;height:9.70874%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-e64b8ab6-68f8-4509-a5cb-63718f86f4b8\">\n<div style=\"position:absolute;width:100.28251%;height:100%;left:-0.14125%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png\" alt=\"InterviewBit-White-2\" srcSet=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png 2130w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-2048x681.png 2048w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1536x511.png 1536w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1024x340.png 1024w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-768x255.png 768w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-300x100.png 300w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-150x50.png 150w\" sizes=\"(min-width: 1024px) 20vh, 44vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:9.2233%;top:15.04854%;width:84.95146%;height:22.97735%;opacity:1\">\n<div id=\"anim-59705a9f-f704-4144-9c20-af32917755be\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-58528abd-40a1-4547-bbdd-fcf3a0b5e508\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.5714285714285714% 0.5714285714285714% 0.5714285714285714% 0.5714285714285714% \/ 1.4084507042253522% 1.4084507042253522% 1.4084507042253522% 1.4084507042253522%\" id=\"el-8b0e7f2d-4f9f-4095-9af1-92f32be86168\">\n<h1 id=\"introduction-to-depth-first-search-dfs\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:2.931428571428572% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.728155em;line-height:0.9;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #e06e04\">Introduction to Depth First Search (DFS)<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-page-outlink layout=\"nodisplay\" cta-image=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/12\/Depth-First-Search.png\"><a href=\"https:\/\/www.interviewbit.com\/blog\/depth-first-search\/?utm_source=Ib&amp;utm_medium=depth-first-search&amp;utm_campaign=webstories\" rel=\"\">Learn more<\/a><\/amp-story-page-outlink><\/amp-story-page><amp-story-page id=\"277173cc-5715-49f8-a52a-cc1d7614dffc\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-d33fa3c4-f74b-4f70-82fb-ffa2444fb8ad\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-65acb8da-651f-4777-a431-c0caab6d0a83\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-7a80d17d-0705-4ddb-8f6b-4d220aee1afc [data-leaf-element=\\\"true\\\"]\",\"keyframes\":{\"transform\":[\"translate(0%, 0%) scale(1.5)\",\"translate(0%, 0%) scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-8f70ca38-0296-414d-a3cb-b2211d39a353\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-f1ddf844-bbdf-4df6-9b05-cd8e8b9dcf48\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#f3f3f3\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div id=\"anim-7a80d17d-0705-4ddb-8f6b-4d220aee1afc\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-dc9776bd-a5e5-41cc-9160-89bf8e196164\">\n<div style=\"position:absolute;width:266.31253%;height:100%;left:-83.15627%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=6016&amp;h=4016&amp;fit=max\" alt=\"group of people sitting beside rectangular wooden table with laptops\" srcSet=\"https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=6016&amp;h=4016&amp;fit=max 6016w,https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=4812&amp;h=3212&amp;fit=max 4812w,https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=3609&amp;h=2409&amp;fit=max 3609w,https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=2406&amp;h=1606&amp;fit=max 2406w,https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=1203&amp;h=803&amp;fit=max 1203w,https:\/\/images.unsplash.com\/photo-1573164574572-cb89e39749b4?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxMHx8c29mdHdhcmUlMjBkZXZlbG9wZXJzfGVufDB8fHx8MTY2NjYyMzI3MA&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=340&amp;h=227&amp;fit=max 340w\" sizes=\"(min-width: 1024px) 120vh, 267vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<div class=\"element-overlay-area\" style=\"background-color:rgba(0,0,0,0.55)\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"page-background-overlay-area\" style=\"background-color:rgba(0,0,0,0.55)\"><\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:7.76699%;top:41.58576%;width:84.46602%;height:17.1521%;opacity:1\">\n<div id=\"anim-d33fa3c4-f74b-4f70-82fb-ffa2444fb8ad\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-65acb8da-651f-4777-a431-c0caab6d0a83\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.5747126436781609% 0.5747126436781609% 0.5747126436781609% 0.5747126436781609% \/ 1.8867924528301887% 1.8867924528301887% 1.8867924528301887% 1.8867924528301887%\" id=\"el-10a12e2a-8a3d-47a0-bb92-294a0c6e9cff\">\n<h2 id=\"given-an-undirected-unweighted-graph-print-the-dfs-traversal-of-the-graph\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.627586206896552% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"color: #fff\">Given an undirected, unweighted graph, print the DFS traversal of the graph.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:0;top:-6.31068%;width:43.68932%;height:9.70874%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-272f6859-b105-49e3-ad7b-f45fd2aa76ca\">\n<div style=\"position:absolute;width:100.28251%;height:100%;left:-0.14125%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png\" alt=\"InterviewBit-White-2\" srcSet=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png 2130w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-2048x681.png 2048w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1536x511.png 1536w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1024x340.png 1024w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-768x255.png 768w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-300x100.png 300w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-150x50.png 150w\" sizes=\"(min-width: 1024px) 20vh, 44vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:7.52427%;top:20.87379%;width:88.83495%;height:9.87055%;opacity:1\">\n<div id=\"anim-8f70ca38-0296-414d-a3cb-b2211d39a353\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-f1ddf844-bbdf-4df6-9b05-cd8e8b9dcf48\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.546448087431694% 0.546448087431694% 0.546448087431694% 0.546448087431694% \/ 3.278688524590164% 3.278688524590164% 3.278688524590164% 3.278688524590164%\" id=\"el-8bbb9b93-ca19-41f3-aed7-8b4b675e14b9\">\n<h1 id=\"problem-statement\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:2.8032786885245904% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.728155em;line-height:0.9;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #e06e04\">Problem Statement<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-page-outlink layout=\"nodisplay\" cta-image=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/12\/Depth-First-Search.png\"><a href=\"https:\/\/www.interviewbit.com\/blog\/depth-first-search\/?utm_source=Ib&amp;utm_medium=depth-first-search&amp;utm_campaign=webstories\" rel=\"\">Learn through example<\/a><\/amp-story-page-outlink><\/amp-story-page><amp-story-page id=\"bc60c57e-a103-4417-900c-bd0d04f53aef\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-b9d7e4fd-fb09-4a99-9413-ed3979a2df47\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-28740430-90b1-46c8-a04c-dcbacc205e9b\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-9fb4cd57-9ef2-41c3-ab46-abe5e6b43d88 [data-leaf-element=\\\"true\\\"]\",\"keyframes\":{\"transform\":[\"translate(25%, 0%) scale(1.5)\",\"translate(0%, 0%) scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-e5e6a1bd-e634-478e-8e31-dd6806a338ae\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-c00cf149-d370-4858-b4e0-eab721848b03\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#262626\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div id=\"anim-9fb4cd57-9ef2-41c3-ab46-abe5e6b43d88\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-15fc455c-8aec-405d-9b72-81ecfc9f4aef\">\n<div style=\"position:absolute;width:118.51852%;height:100%;left:0%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=4000&amp;h=6000&amp;fit=max\" alt=\"media\/unsplash:7wLQNYKL3Rw\" srcSet=\"https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=4000&amp;h=6000&amp;fit=max 4000w,https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=3200&amp;h=4800&amp;fit=max 3200w,https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=2400&amp;h=3600&amp;fit=max 2400w,https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=1600&amp;h=2400&amp;fit=max 1600w,https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=800&amp;h=1200&amp;fit=max 800w,https:\/\/images.unsplash.com\/photo-1631624210938-539575f92e3c?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHwxfHxkZXZvcHN8ZW58MHx8fHwxNjYyNjMwODM1&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=340&amp;h=510&amp;fit=max 340w\" sizes=\"(min-width: 1024px) 53vh, 119vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<div class=\"element-overlay-area\" style=\"background-color:rgba(0,0,0,0.5)\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"page-background-overlay-area\" style=\"background-color:rgba(0,0,0,0.5)\"><\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:8.49515%;top:35.11327%;width:83.00971%;height:49.67638%;opacity:1\">\n<div id=\"anim-b9d7e4fd-fb09-4a99-9413-ed3979a2df47\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-28740430-90b1-46c8-a04c-dcbacc205e9b\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.5847953216374269% 0.5847953216374269% 0.5847953216374269% 0.5847953216374269% \/ 0.6514657980456027% 0.6514657980456027% 0.6514657980456027% 0.6514657980456027%\" id=\"el-84ea2df9-ceff-472a-bac3-cf281b1ff14a\">\n<h2 id=\"1-start-at-any-node-such-as-the-root-node-2-mark-the-current-node-as-visited-3-if-immediate-children-of-the-node-are-not-visited-recursively-call-function-for-that-child\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.6385964912280705% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"color: #fff\">1. Start at any node, such as the root node.&nbsp;<\/span><\/p>\n<p><span style=\"color: #fff\">2. Mark the current node as visited.<\/span><\/p>\n<p><span style=\"color: #fff\">3. If immediate children of the node are not visited, recursively call function for that child.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:0;top:-6.31068%;width:43.68932%;height:9.70874%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-d8513910-8a83-4deb-b566-2db31069c93c\">\n<div style=\"position:absolute;width:100.28251%;height:100%;left:-0.14125%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png\" alt=\"InterviewBit-White-2\" srcSet=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png 2130w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-2048x681.png 2048w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1536x511.png 1536w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1024x340.png 1024w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-768x255.png 768w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-300x100.png 300w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-150x50.png 150w\" sizes=\"(min-width: 1024px) 20vh, 44vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:8.49515%;top:21.68285%;width:88.83495%;height:9.87055%;opacity:1\">\n<div id=\"anim-e5e6a1bd-e634-478e-8e31-dd6806a338ae\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-c00cf149-d370-4858-b4e0-eab721848b03\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.546448087431694% 0.546448087431694% 0.546448087431694% 0.546448087431694% \/ 3.278688524590164% 3.278688524590164% 3.278688524590164% 3.278688524590164%\" id=\"el-cdb5f77b-5dcc-404e-a030-49efdee30598\">\n<h1 id=\"algorithm\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:2.8032786885245904% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.728155em;line-height:0.9;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #e06e04\">Algorithm<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-page-outlink layout=\"nodisplay\" cta-image=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/12\/Depth-First-Search.png\"><a href=\"https:\/\/www.interviewbit.com\/blog\/depth-first-search\/?utm_source=Ib&amp;utm_medium=depth-first-search&amp;utm_campaign=webstories\" rel=\"\">Check its implementation<\/a><\/amp-story-page-outlink><\/amp-story-page><amp-story-page id=\"1a191061-ddbb-4550-abcf-f0bc85dc7287\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-b9200b2d-0eab-473a-a3b6-c07283c814c5\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-7249dbdd-992c-49d4-8952-da87d00e4c50\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-639ce7d9-3fb0-4984-b049-e16ada6522c0 [data-leaf-element=\\\"true\\\"]\",\"keyframes\":{\"transform\":[\"translate(0%, 0%) scale(1.5)\",\"translate(0%, 0%) scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-1065d545-d8ae-4640-a317-05b206c943bb\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-add72fe5-8707-40aa-a533-6517786b8775\",\"keyframes\":{\"transform\":[\"scale(0.3333333333333333)\",\"scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#262626\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div id=\"anim-639ce7d9-3fb0-4984-b049-e16ada6522c0\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-883223f5-830e-4ae0-9120-2707c519df5d\">\n<div style=\"position:absolute;width:118.51852%;height:100%;left:-9.25926%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=4000&amp;h=6000&amp;fit=max\" alt=\"Weather Reporting System using IoT\" srcSet=\"https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=4000&amp;h=6000&amp;fit=max 4000w,https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=3200&amp;h=4800&amp;fit=max 3200w,https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=2400&amp;h=3600&amp;fit=max 2400w,https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=1600&amp;h=2400&amp;fit=max 1600w,https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=800&amp;h=1200&amp;fit=max 800w,https:\/\/images.unsplash.com\/photo-1612914033131-2fbd331a3806?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw1OHx8ZGF0YSUyMGFuYWx5dGljc3xlbnwwfHx8fDE2NjM3NTgzMDc&amp;ixlib=rb-1.2.1&amp;fm=jpg&amp;w=340&amp;h=510&amp;fit=max 340w\" sizes=\"(min-width: 1024px) 53vh, 119vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<div class=\"element-overlay-area\" style=\"background-color:rgba(0,0,0,0.5)\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"page-background-overlay-area\" style=\"background-color:rgba(0,0,0,0.5)\"><\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-6.31068%;width:43.68932%;height:9.70874%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-1f5f27f4-5dfe-431a-a50f-d7d2f6a3195f\">\n<div style=\"position:absolute;width:100.28251%;height:100%;left:-0.14125%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png\" alt=\"InterviewBit-White-2\" srcSet=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2.png 2130w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-2048x681.png 2048w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1536x511.png 1536w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-1024x340.png 1024w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-768x255.png 768w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-300x100.png 300w,https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/07\/InterviewBit-White-2-150x50.png 150w\" sizes=\"(min-width: 1024px) 20vh, 44vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:8.00971%;top:39.32039%;width:83.00971%;height:27.99353%;opacity:1\">\n<div id=\"anim-b9200b2d-0eab-473a-a3b6-c07283c814c5\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-7249dbdd-992c-49d4-8952-da87d00e4c50\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.5847953216374269% 0.5847953216374269% 0.5847953216374269% 0.5847953216374269% \/ 1.1560693641618496% 1.1560693641618496% 1.1560693641618496% 1.1560693641618496%\" id=\"el-28317bd2-7ada-4b27-9743-f83433cd9a66\">\n<h2 id=\"time-complexity-ov-e-where-v-no-of-vertices-e-no-of-edges-space-complexity-ov\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.6385964912280705% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #e06e04\">Time Complexity: <\/span><span style=\"color: #fff\">O(|V| + |E|), where V = no. of vertices, E = no. of edges&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 700; color: #e06e04\">Space Complexity: <\/span><span style=\"color: #fff\">O(|V|)<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:8.25243%;top:17.63754%;width:88.83495%;height:16.50485%;opacity:1\">\n<div id=\"anim-1065d545-d8ae-4640-a317-05b206c943bb\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-add72fe5-8707-40aa-a533-6517786b8775\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:scale(0.3333333333333333)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.546448087431694% 0.546448087431694% 0.546448087431694% 0.546448087431694% \/ 1.9607843137254901% 1.9607843137254901% 1.9607843137254901% 1.9607843137254901%\" id=\"el-b60c9007-cf91-438a-8834-4315f233e19c\">\n<h1 id=\"time-and-space-complexity\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:2.8032786885245904% 0;font-family:&quot;Darker Grotesque&quot;,sans-serif;font-size:0.728155em;line-height:0.9;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #e06e04\">Time and Space Complexity<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-page-outlink layout=\"nodisplay\" cta-image=\"https:\/\/www.interviewbit.com\/blog\/wp-content\/uploads\/2021\/12\/Depth-First-Search.png\"><a href=\"https:\/\/www.interviewbit.com\/blog\/depth-first-search\/?utm_source=Ib&amp;utm_medium=depth-first-search&amp;utm_campaign=webstories\" rel=\"\">Learn more<\/a><\/amp-story-page-outlink><\/amp-story-page><amp-story-page id=\"b2cd7624-c3ec-4a7d-9867-d7d4dc8f0933\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-f217525d-d784-445b-8d85-6e2239ee204f\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":1000,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-3b8c37d4-38b8-4e44-bac2-0f05df2e1756\",\"keyframes\":{\"transform\":[\"translate3d(0px, 160.95740%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":1000,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-a27d41cf-f4d2-4eb6-8a6e-0e6b89348f57 [data-leaf-element=\\\"true\\\"]\",\"keyframes\":{\"transform\":[\"translate(0%, 0%) scale(1.5)\",\"translate(0%, 0%) scale(1)\"]},\"delay\":0,\"duration\":2000,\"easing\":\"cubic-bezier(.3,0,.55,1)\",\"fill\":\"forwards\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#f3f3f3\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div id=\"anim-a27d41cf-f4d2-4eb6-8a6e-0e6b89348f57\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-ae3f6c5c-5c72-4ba8-b6bc-e71174f9ed50\">\n<div style=\"position:absolute;width:142.20546%;height:100%;left:-21.10273%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/images.unsplash.com\/photo-1579403124614-197f69d8187b?ixid=MnwxMzcxOTN8MHwxfHNlYXJjaHw4fHxqYXZhfGVufDB8fHx8MTY2NjI1MTk3NQ&amp;ixlib=rb-4.0.3&amp;fm=jpg&amp;w=3394&amp;h=4243&amp;fit=max\" alt=\"media\/unsplash:QUHuwyNgSA0\" 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