Given an undirected graph and an integer M. The task is to determine if the graph can be colored with at most M colors such that no two adjacent vertices of the graph are colored with the same color. Here coloring of a graph means assignment of colors to all vertices. Print 1 if it is possible to colour vertices and 0 otherwise.
Vertex are 1-based (vertext number starts with 1, not 0).
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case consists of four lines. The first line of each test case contains an integer N denoting the number of vertices. The second line of each test case contains an integer M denoting the number of colors available. The third line of each test case contains an integer E denoting the number of edges available. The fourth line of each test case contains E pairs of space separated integers denoting the edges between vertices.
Print the desired output.
1 <= T <= 30
1 <= N <= 50
1 <= E <= N*(N-1)
1 <= M <= N
1 2 2 3 3 4 4 1 1 3
1 2 2 3 1 3
Testcase 1: It is possible to colour the given graph using 3 colours.
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