0_0_22259153_23876.cpp: In function 'int main()':
0_0_22259153_23876.cpp:25:18: error: 'class std::vector<int>' has no member named 'pb'
G[x].pb(y),out[x]++;
^
0_0_22259153_23876.cpp:26:18: error: 'class std::vector<int>' has no member named 'pb'
G[y].pb(x),out[y]++;
^
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