0_0_30230810_25586.cpp: In function 'int bfs(node, node)':
0_0_30230810_25586.cpp:20:29: error: 'memset' was not declared in this scope
memset(vis,0,sizeof(vis));
^
0_0_30230810_25586.cpp: In function 'int main()':
0_0_30230810_25586.cpp:91:34: error: 'memset' was not declared in this scope
memset(dis,-1,sizeof(dis));
^
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