foo.cc: In function 'int main()':
foo.cc:12:26: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<FindMaxNeg1(a,n)<<" "<<FindMaxNeg2(b,nn);
                          ^~~
foo.cc:12:29: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<FindMaxNeg1(a,n)<<" "<<FindMaxNeg2(b,nn);
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
foo.cc: In function 'int FindMaxNeg1(int*, int)':
foo.cc:42:9: warning: 'maxneg' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return maxneg;
         ^~~~~~

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