/in/foo.cc: In function 'int main()':
/in/foo.cc:8:2: error: expected ',' or ';' before 'for'
  for(i=2;i<m;i++)
  ^~~
/in/foo.cc:8:11: warning: statement has no effect [-Wunused-value]
  for(i=2;i<m;i++)
          ~^~
/in/foo.cc:8:17: error: expected ';' before ')' token
  for(i=2;i<m;i++)
                 ^
/in/foo.cc:7:8: warning: unused variable 'k' [-Wunused-variable]
  int i,k=0
        ^
/in/foo.cc:24:1: error: expected '}' at end of input
 }
 ^