/in/foo.cc: In function 'int main()':
/in/foo.cc:15:3: error: expected ';' before 'for'
   for(int i = 1; i <= m; i++)
   ^
/in/foo.cc:15:16: error: statement cannot resolve address of overloaded function
   for(int i = 1; i <= m; i++)
                ^
/in/foo.cc:15:20: warning: statement has no effect [-Wunused-value]
   for(int i = 1; i <= m; i++)
                    ^
/in/foo.cc:15:29: error: expected ';' before ')' token
   for(int i = 1; i <= m; i++)
                             ^
/in/foo.cc:7:12: warning: unused variable 'y' [-Wunused-variable]
  int n,m,x,y;
            ^