Run id: 154480

Main.cc: In function 'int main()':
Main.cc:8:20: error: expected primary-expression before ';' token
     for(int i=m;i<=;i++)
                    ^
Main.cc:9:9: warning: unused variable 'even_sum' [-Wunused-variable]
     int even_sum = 0;  // 偶数和
         ^
Main.cc:17:14: error: 'es' was not declared in this scope
              es+= i;
              ^
Main.cc:21:14: error: 'os' was not declared in this scope
              os += i;
              ^
Main.cc:25:12: error: 'es' was not declared in this scope
     cout <