 Practice
Resources
Contests
Online IDE
New
Free Mock
Events New Scaler
Practice
Improve your coding skills with our resources
Contests
Compete in popular contests with top coders Events
Attend free live masterclass hosted by top tech professionals
New
Scaler
Explore Offerings by SCALER # Max edge queries!

Problem Description

Given a tree with N nodes numbered from 1 to N.

Each edge is bi-directional and has a certain weight assigned to it.

You are given Q queries, in each query you are given two integers u and v and you are required to find the maximum weighted edge in a simple path from u to v.

You have to return the weight of the edge for each queries.

Problem Constraints

2 <= N, Q <= 105

1 <= u, v <= N and u != v

1 <= weight of any edge <= 108

Input Format

First argument is a 2-D array A of size (N-1) x 3 where (A[i], A[i]) denotes an edge of the tree from node A[i] to node A[i] with weight A[i].

Second argument is a 2-D array B of size Q x 2 denoting the queries, B[i] denotes u and B[i] denotes v.

Output Format

Return an integer array of size Q denoting the answer for each queries.

Example Input

Input 1:

``` A = [  [1, 2, 11]
[1, 3, 1]
[2, 4, 12]
[2, 5, 100]
]
B = [  [3, 5]
[2, 3]
]
```

Example Output

Output 1:

``` [100, 11]
```

Example Explanation

Explanation 1:

``` Query 1: u  = 3 and v = 5 so edge (2 -> 5) is the maximum weighted in the path from u to v so we will return the
edge weight as the answer for this query.
Query 2: u = 2 and  v= 3 so edge (2 -> 1) is the maximum weighted in the path from u to v so we will return the
edge weight as the answer for this query.
```

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details. Hints
• Hint 1
• Solution Approach
• Complete Solution

## Discussion Free Mock Assessment
Fill up the details for personalised experience.
All fields are mandatory
Current Employer *
Enter company name *
Select an option *
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
Phone Number *
OTP will be sent to this number for verification
+1 *
+1
Change Number
Phone Number *
OTP will be sent to this number for verification
+1 *
+1
Change Number
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
*Enter the expected year of graduation if you're student
Current Employer *
Company Name * 