0_0_26267093_27944.cpp: In function 'void dfs(int, int, int)':
0_0_26267093_27944.cpp:54:2: error: 'vis' was not declared in this scope
vis[x]=1;
^
0_0_26267093_27944.cpp: In function 'void Init()':
0_0_26267093_27944.cpp:65:9: error: 'vis' was not declared in this scope
memset(vis,0,sizeof(vis));
^
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