0_0_18808766_30956.cpp: In function 'int dfs(int)':
0_0_18808766_30956.cpp:49:8: error: 'C' was not declared in this scope
if(C[u]==0){
^
0_0_18808766_30956.cpp:51:25: error: 'dist' was not declared in this scope
REP(v,0,n-1) if(dist[u][v]<=A[u]) C[v]^=1;
^
0_0_18808766_30956.cpp:51:37: error: 'A' was not declared in this scope
REP(v,0,n-1) if(dist[u][v]<=A[u]) C[v]^=1;
^
0_0_18808766_30956.cpp:54:19: error: 'G' was not declared in this scope
for(int i=0;i<G[u].size();i++){
^
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