All testcases incorrect in Beautiful Vertices

#1

Please check my algorithm if I am missing some cases

#2

@vivek21,
Beautiful Vertex is defined as that vertex which has more children than its parent. But every vertex has its own different parent and children.
Sample test case:
10 9
1 2
2 4
2 5
2 6
5 8
1 3
3 7
7 11
7 13
Correct output - 2
Your output - 1

#3

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