제출 #80099

실행 실패 (제출 코드 컴파일 에러)

Main.c: In function ‘compare’:
Main.c:5:4: error: unknown type name ‘Person’
    5 |    Person *p1 = (Person *)a;
      |    ^~~~~~
Main.c:5:18: error: ‘Person’ undeclared (first use in this function)
    5 |    Person *p1 = (Person *)a;
      |                  ^~~~~~
Main.c:5:18: note: each undeclared identifier is reported only once for each function it appears in
Main.c:5:26: error: expected expression before ‘)’ token
    5 |    Person *p1 = (Person *)a;
      |                          ^
Main.c:6:12: error: ‘p2’ undeclared (first use in this function); did you mean ‘p1’?
    6 |    Person *p2 = (Person *)b;
      |            ^~
      |            p1
Main.c:6:26: error: expected expression before ‘)’ token
    6 |    Person *p2 = (Person *)b;
      |                          ^
Main.c:8:13: error: request for member ‘age’ in something not a structure or union
    8 |    return p1->age - p2->age;
      |             ^~
Main.c:9:1: warning: control reaches end of non-void function [-Wreturn-type]
    9 | }
      | ^
Main.c: In function ‘main’:
Main.c:20:4: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |    scanf("%d", &N);
      |    ^~~~~~~~~~~~~~~
Main.c:23:7: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   23 |       scanf("%d %s", &p[i].age, p[i].name);
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~