/in/foo.cc: In function 'int main()':
/in/foo.cc:27:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(f[v-ans[i]]+sum[i]>f[v])
     ^~
/in/foo.cc:29:6: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
      cout<<f[r]<<endl;
      ^~~~