Submission #542215

#	Time	Username	Problem	Language	Result	Execution time	Memory
542215		zxcvbnm	Unija (COCI17_unija)	C++14	100 / 100	307 ms	31056 KiB

unija

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<pair<int, int>> a(n);
    for(auto& i : a) {
        cin >> i.first >> i.second;
        i.second /= 2;
    }

    a.push_back({0, 0});
    sort(a.begin(), a.end(), [&](const auto& i, const auto& j) {
        return i.second > j.second;
    });

    ll ans = 0;
    int mx = 0;
    for(int i = 0; i < (int) a.size()-1; i++) {
        mx = max(mx, a[i].first);
        ans += (a[i].second - (a[i+1].second)) * mx;
    }

    ans *= 2;
    cout << ans << "\n";
    return 0;
}

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