Submission #1188875

#	Time	Username	Problem	Language	Result	Execution time	Memory
1188875		caterpillow	Topical (NOI23_topical)	C++20	100 / 100	310 ms	86344 KiB

Main

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

main() {
    cin.tie(0)->sync_with_stdio(0);
    
    int n, k;
    cin >> n >> k;
    vector gain(n, vector<ll>(k));
    vector todo(k, vector<pair<ll, int>>(n));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < k; j++) {
            ll x; cin >> x;
            todo[j][i] = {x, i};
        }
    }
    for (int i = 0; i < k; i++) {
        sort(todo[i].rbegin(), todo[i].rend());
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < k; j++) {
            cin >> gain[i][j];
        }
    }

    int ans = 0;
    queue<int> q;
    vector<ll> rem(n, k), skill(k, 0);

    auto upd = [&] (int i) {
        while (todo[i].size() && todo[i].back().first <= skill[i]) {
            int module = todo[i].back().second;
            if (--rem[module] == 0) {
                q.push(module);
            } 
            todo[i].pop_back();
        }
    };

    for (int i = 0; i < k; i++) upd(i);
    while (q.size()) {
        int i = q.front(); q.pop();
        ans++;
        for (int j = 0; j < k; j++) {
            skill[j] += gain[i][j];
            upd(j);
        }
    }

    cout << ans << '\n';
}

Compilation message (stderr)

Main.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | main() {
      | ^~~~

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