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 cases follow. The first line of each testcase contains two integers N (starting from 1), E denoting the number of nodes and number of edges. Then in the next line are 3*E 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<= 100
N-1 <= E<= 1000
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.
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