vs에서는 잘 돌아가는데 백준에서는 컴파일 에러가 나네요..ㅠㅠㅠ 버전도 cpp17로 잡았는데 말이죠...

#include<iostream>
#include<algorithm>

using namespace std;

struct time
{
int s;
int t;
};

bool cmp_time(time a, time b)
{
if (a.s == b.s)
return a.t < b.t;
return a.s < b.s;
}

int main()
{
int n, max_room = 0, i, j;
cin >> n;

time* times = new time[n];

for (i = 0; i < n; i++)
cin >> times[i].s >> times[i].t;

sort(times, times + n, cmp_time);

for (i = 0; i < n; i++)
{
for (j = 0; j < i; j++)
{
//추가된 과목의 시작시간이 기존 과목의 마침 시간보다 늦을 시 == 추가x
if (times[i].s >= times[j].t)
break;
}
if (j == i) //이전 과목들과 시간이 무조건 겹친다
max_room++;
}

printf("%d\n", max_room);

delete[] times;
return 0;
}

에러 로그는 아래와 같습니다.

Main.cc:13:20: error: expected ‘)’ before ‘a’
 bool cmp_time(time a, time b)
                    ^
Main.cc:13:28: error: expected ‘)’ before ‘b’
 bool cmp_time(time a, time b)
                            ^
Main.cc:13:29: error: expression list treated as compound expression in initializer [-fpermissive]
 bool cmp_time(time a, time b)
                             ^
Main.cc:13:29: warning: left operand of comma operator is a reference, not call, to function ‘time’ [-Waddress]
Main.cc:13:29: warning: left operand of comma operator has no effect [-Wunused-value]
Main.cc:13:29: warning: the address of ‘time_t time(time_t*)’ will never be NULL [-Waddress]
Main.cc:13:29: warning: the address of ‘time_t time(time_t*)’ will never be NULL [-Waddress]
Main.cc:14:1: error: expected ‘,’ or ‘;’ before ‘{’ token
 {
 ^
Main.cc: In function ‘int main()’:
Main.cc:25:8: error: ‘times’ was not declared in this scope
  time* times = new time[n];
        ^~~~~
Main.cc:25:8: note: suggested alternative: ‘time’
  time* times = new time[n];
        ^~~~~
        time
Main.cc:25:20: error: ‘time’ does not name a type
  time* times = new time[n];
                    ^~~~
Main.cc:46:11: error: type ‘<type error>’ argument given to ‘delete’, expected pointer
  delete[] times;
           ^~~~~