제출 #1199856

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1199856		ofoz	Topical (NOI23_topical)	C++20	100 / 100	770 ms	132380 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
#define pi pair<int, int>
void solve() {
    int n, m;
    cin >> n >> m;
    vector<vector<int>> grid(n, vector<int>(m));
    vector<vector<int>> gain(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> grid[i][j];
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> gain[i][j];
        }
    }
    
    vector<priority_queue<pi>> ptrs(m);
    for (int i = 0; i < n; i++) {
        ptrs[0].push({-grid[i][0], i});
    }

    vector<int> cur(m, 0);
    int res = 0;
    vector<int> finished;
    bool start = true;
    while (start || !finished.empty()) {
        start = false;
        while (!finished.empty()) {
            res++;
            for (int j = 0; j < m; j++) { cur[j] += gain[finished.back()][j]; }
            finished.pop_back();

        }
        finished.clear();

        for (int k = 0; k < m; k++) {
            
            while (!ptrs[k].empty() && (-(ptrs[k].top().first)) <= cur[k]) {
                int x, i;
                tie(x, i) = ptrs[k].top();
                x *= -1;
                if (k == m-1) { finished.push_back(i); }
                else ptrs[k+1].push({-grid[i][k+1], i});
                ptrs[k].pop();
            }
        }
    }

    cout << res << endl;
}

signed main() {
    solve();
    return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 28 / 28
• Subtask 3: 21 / 21
• Subtask 4: 39 / 39