Submission #225213

#	Time	Username	Problem	Language	Result	Execution time	Memory
225213		Minnakhmetov	Sweeping (JOI20_sweeping)	C++14	1 / 100	18104 ms	16336 KiB

sweeping

#include <bits/stdc++.h>
using namespace std;
  
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
  
vector<pair<int, int>> v;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n, m, q;
    cin >> n >> m >> q;

    for (int i = 0; i < m; i++) {
        int x, y;
        cin >> x >> y;
        v.push_back({x, y});
    }

    for (int i = 0; i < q; i++) {
        int type, x, y;
        cin >> type >> x;

        if (type == 1) {
            x--;
            cout << v[x].first << " " << v[x].second << "\n";
        }
        else if (type == 2) {
            for (auto &p : v) {
                if (p.first < n - x && p.second <= x) {
                    p.first = n - x;
                }
            }
        }
        else if (type == 3) {
            for (auto &p : v) {
                if (p.second < n - x && p.first <= x) {
                    p.second = n - x;
                }
            }
        }
        else {
            cin >> y;
            v.push_back({x, y});
        }
    }

    return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25