/in/foo.cc: In function 'int main()':
/in/foo.cc:35:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int i = 1; i <= n; i++) head[i] = -1; cnt = 0;  
     ^~~
/in/foo.cc:35:47: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for(int i = 1; i <= n; i++) head[i] = -1; cnt = 0;  
                                               ^~~