Submission #1021651

#	Time	Username	Problem	Language	Result	Execution time	Memory
1021651		AustinPi	Advertisement 2 (JOI23_ho_t2)	C++17	10 / 100	264 ms	30876 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll a, b, c=0;
    set <ll> s;
    cin >> a;
    for (ll i=0;i<a;i++) {
		cin >> b >> c;
		s.insert(b);
	}
	cout<<s.size();
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 23
• Subtask 3: 0 / 36
• Subtask 4: 0 / 31