/in/foo.cc: In function 'int main()':
/in/foo.cc:8:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=mx;i;i--)if(dp[n][i])return printf("%d\n",i),0; return puts("-1"),0;
  ^~~
/in/foo.cc:8:60: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for(int i=mx;i;i--)if(dp[n][i])return printf("%d\n",i),0; return puts("-1"),0;
                                                            ^~~~~~