foo.cc: In function 'int main()':
foo.cc:6:16: error: 'm\U0000ff0c3' was not declared in this scope
    6 |         if(l=k*m，3*n=l*m){
      |                ^~~~
foo.cc:10:17: error: expected '(' before 'cout'
   10 |                 cout<<k<<endl;
      |                 ^~~~
      |                 (
foo.cc:11:9: error: break statement not within loop or switch
   11 |         break;
      |         ^~~~~

[Hydro](https://hydro.ac)提供评测服务