Submission #580706

#	Time	Username	Problem	Language	Result	Execution time	Memory
580706		snasibov05	Sails (IOI07_sails)	C++14	30 / 100	1087 ms	7876 KiB

sails

#include <bits/stdc++.h>

using namespace std;

#define int long long

signed main() {
    const int mx = 1e5 + 5;
    int n; cin >> n;
    vector<pair<int, int>> v(n);
    for (int i = 0; i < n; ++i) cin >> v[i].first >> v[i].second;
    
    sort(v.begin(), v.end());
    set<pair<int, int>> st;
    vector<int> cnt(mx);
    for (int i = 0; i < n; ++i){
        for (int j = 1; j <= v[i].first; ++j) {
            st.insert({cnt[j], j});
        }
        for (int j = 0; j < v[i].second; ++j){
            auto it = st.begin();
            int h = it->second;
            st.erase(it);
            cnt[h]++;
        }
    }

    int ans = 0;
    for (int i = 0; i < mx; ++i) ans += cnt[i] * (cnt[i] - 1) / 2;

    cout << ans << "\n";

    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10