Submission #113097

#	Time	Username	Problem	Language	Result	Execution time	Memory
113097		popovicirobert	Garage (IOI09_garage)	C++14	100 / 100	3 ms	436 KiB

garage

#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
// 217
// 44

using namespace std;



int main() {
    //ifstream cin("A.in");
    //ofstream cout("A.out");
    int i, n, m;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    cin >> n >> m;

    vector <int> space(n + 1), car(m + 1);

    for(i = 1; i <= n; i++) {
        cin >> space[i];
    }

    for(i = 1; i <= m; i++) {
        cin >> car[i];
    }

    queue < pair <int, int> > a, b;

    for(i = 1; i <= 2 * m; i++) {
        int id;
        cin >> id;

        if(id > 0) {
            a.push({id, i});
        }
        else {
            b.push({-id, i});
        }
    }

    set <int> act;

    for(i = 1; i <= n; i++) {
        act.insert(i);
    }

    vector <int> where(m + 1);
    ll ans = 0;

    for(i = 1; i <= 2 * m && a.size(); i++) {
        if(act.size() > 0) {
            if(b.size() == 0 || (b.size() && a.front().second < b.front().second)) {
                auto pos = *act.begin();
                act.erase(act.begin());

                ans += 1LL * car[a.front().first] * space[pos];
                where[a.front().first] = pos;
                a.pop();
            }
            else {
                act.insert(where[b.front().first]);
                b.pop();
            }
        }
        else {
            act.insert(where[b.front().first]);
            b.pop();
        }
    }

    cout << ans;

    //cin.close();
    //cout.close();
    return 0;
}

• Subtask 1: 100 / 100