/in/foo.cc: In function 'int FindMaxNeg(int*, int)':
/in/foo.cc:15:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return max;
         ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:26:8: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<max1<<max2<<endl;
        ^~~~
/in/foo.cc:26:14: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<max1<<max2<<endl;
              ^~~~