foo.cc: In function 'int main()':
foo.cc:13:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(j=sum;j>=0;j--)
         ^~~
foo.cc:22:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
          sum+=h[i];
          ^~~

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。