Submission #892514

#	Time	Username	Problem	Language	Result	Execution time	Memory
892514		adaawf	Arcade (NOI20_arcade)	C++14	100 / 100	191 ms	18020 KiB

Arcade

#include <iostream>
#include <set>
#include <algorithm>
using namespace std;
struct PUS {
    long long int x, y;
} a[500005];
bool cmp(PUS aa, PUS bb) {
    if (aa.x + aa.y == bb.x + bb.y) return aa.x - aa.y < bb.x - bb.y;
    return aa.x + aa.y < bb.x + bb.y;
}
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    long long int n, m;
    cin >> n >> m;
    for (int i = 1; i <= m; i++) {
        cin >> a[i].x;
    }
    for (int i = 1; i <= m; i++) {
        cin >> a[i].y;
    }
    sort(a + 1, a + m + 1, cmp);
    multiset<long long int> s;
    for (int i = 1; i <= m; i++) {
        auto h = s.upper_bound(a[i].x - a[i].y);
        if (h != s.begin()) {
            s.erase(prev(h));
        }
        s.insert(a[i].x - a[i].y);
    }
    cout << s.size();
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 21 / 21
• Subtask 5: 14 / 14
• Subtask 6: 20 / 20
• Subtask 7: 15 / 15