/in/foo.cc: In function 'int main()':
/in/foo.cc:21:9: warning: unused variable 'm' [-Wunused-variable]
  int n, m,flag;
         ^
/in/foo.cc:21:11: warning: unused variable 'flag' [-Wunused-variable]
  int n, m,flag;
           ^
/in/foo.cc:22:12: warning: unused variable 'b' [-Wunused-variable]
  long long b,c,low,sum=0;
            ^
/in/foo.cc:22:14: warning: unused variable 'c' [-Wunused-variable]
  long long b,c,low,sum=0;
              ^
/in/foo.cc:22:16: warning: unused variable 'low' [-Wunused-variable]
  long long b,c,low,sum=0;
                ^
/in/foo.cc:46:15: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << a[j].name<<endl<<max<<endl<<sum;
               ^