/in/foo.cc: In function 'int main()':
/in/foo.cc:31:6: error: expected 'while' before '(' token
   for(int i=1;i<=m;i++)
      ^
/in/foo.cc:31:7: error: expected primary-expression before 'int'
   for(int i=1;i<=m;i++)
       ^~~
/in/foo.cc:31:7: error: expected ')' before 'int'
/in/foo.cc:31:7: error: expected ';' before 'int'
/in/foo.cc:31:16: warning: statement has no effect [-Wunused-value]
   for(int i=1;i<=m;i++)
               ~^~~
/in/foo.cc:31:23: error: expected ';' before ')' token
   for(int i=1;i<=m;i++)
                       ^