0_0_20916941_21970.cpp: In function 'int main()':
0_0_20916941_21970.cpp:53:36: error: 'qsort' was not declared in this scope
qsort(mmm,w,sizeof(mmm),cmp);
^
0_0_20916941_21970.cpp:64:27: error: too many arguments to function 'int dfs(int, int, int)'
if(dfs(1,0,n,0))
^
0_0_20916941_21970.cpp:19:5: note: declared here
int dfs(int deep, int sn,int an)
^
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