0_0_13795536_12172.cpp: In function 'void init()':
0_0_13795536_12172.cpp:16:29: error: 'memset' was not declared in this scope
memset(Dfs,0,sizeof(Dfs));
^
0_0_13795536_12172.cpp: In function 'int main()':
0_0_13795536_12172.cpp:78:13: error: 'i' was not declared in this scope
for(i=1;i<=n;i++)
^
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