Submission #1127791

#	Time	Username	Problem	Language	Result	Execution time	Memory
1127791		pemguimn	Topical (NOI23_topical)	C++17	12 / 100	230 ms	70752 KiB

Main

#include <bits/stdc++.h>
#define pii pair<int, int>
using namespace std;

const int N = 1e6 + 5;
int n, k, cnt[N], it[N], pw[N];
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> k;
    vector<vector<pii>> a(k);
    vector<vector<int>> v(n, vector<int>(k));

    for(int i = 0; i < n; i++){
        for(int j = 0; j < k; j++){
            int x; cin >> x;
            a[j].push_back({x, i});
        }
    }

    for(int i = 0; i < k; i++){
        sort(a[i].begin(), a[i].end()); cnt[i] = 0;
    }
    for(int i = 0; i < n; i++){
        for(int j = 0; j < k; j++){
            cin >> v[i][j];
        }
    }

    int ans = 0;
    for(int i = 0; i < n; i++){
        bool inc = false;
        for(int j = 0; j < k; j++){
            if(it[j] == n) continue;
            while(it[j] < n && a[j][it[j]].first <= pw[j]){
                int id = a[j][it[j]].second;
                cnt[id]++, it[j]++;
                if(cnt[id] == k){
                    ans++, inc = true;
                    for(int l = 0; l < k; l++) pw[l] += v[id][l];
                }
            }
        }
    }
    cout << ans << '\n';
    return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 0 / 28
• Subtask 3: 0 / 21
• Subtask 4: 0 / 39