Submission #895531

#	Time	Username	Problem	Language	Result	Execution time	Memory
895531		LiuBruh	Advertisement 2 (JOI23_ho_t2)	C++17	10 / 100	288 ms	30800 KiB

Main

#include <bits/stdc++.h>

#define int long long
#define sz(v) (int)v.size()
using namespace std;

const int maxn = (int)5e5 + 5;
const int INF = (int)1e18 + 5;

int n;
set<int> st;

void solve() {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int a, b;  cin >> a >> b;
        st.insert(a);
    }
    cout << sz(st) << '\n';
}

signed main() {
    ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);

    solve();

    return 0;
}

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