/in/foo.cc: In function 'int main()':
/in/foo.cc:42:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for (int i = 1; i < cnt; i++) 
   ^~~
/in/foo.cc:65:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    printf("%d\n", ans); 
    ^~~~~~
/in/foo.cc:20:16: warning: unused variable 'x' [-Wunused-variable]
   int cnt = 0, x;
                ^