Given a weighted, undirected and connected graph. The task is to find the sum of weights of the edges of the Minimum Spanning Tree.
The first line of input contains an integer T denoting the number of testcases. Then T test ases follow. The first line of each testcase contains two integers N,E denoting the number of nodes and number of edges. Then in the next line are E*3 space separated values a b w where a,b denotes an edge from a to b and w is the weight of the edge.
For each test case in a new line print the sum of weights of the edges of the Minimum Spanning Tree formed of the graph.
Since this is a functional problem you don't have to worry about input, you just have to complete the function spanningTree() which takes a graph g as its argument and returns an integer denoting the sum of weights of the edges of the Minimum Spanning Tree.
1 <= T <= 10
1 <= N, E <= 100
1 <= w <= 1000
1 2 5 2 3 3 1 3 1
1 2 5
Testcase 1: Sum of weights of edges in the minimum spanning tree is 4.
If you have purchased any course from GeeksforGeeks then please ask your doubt on course discussion forum. You will get quick replies from GFG Moderators there.