foo.cc: In function 'int main()':
foo.cc:11:3: error: case label ''+'' not within a switch statement
case'+':
^~~~
foo.cc:13:4: error: break statement not within loop or switch
break;
^~~~~
foo.cc:14:3: error: case label ''-'' not within a switch statement
case'-':
^~~~
foo.cc:16:4: error: break statement not within loop or switch
break;
^~~~~
foo.cc:17:3: error: case label ''*'' not within a switch statement
case'*':
^~~~
foo.cc:19:4: error: break statement not within loop or switch
break;
^~~~~
foo.cc:20:3: error: case label ''/'' not within a switch statement
case'/':
^~~~
foo.cc:22:4: error: break statement not within loop or switch
break;
^~~~~
foo.cc:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%f,%f,%c",&a,&b,&c);
~~~~~^~~~~~~~~~~~~~~~~~~~~
[Hydro](https://hydro.ac)提供评测服务