Submission #1184896

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184896		NotLinux	Topical (NOI23_topical)	C++20	100 / 100	209 ms	70808 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define sz(x) (int)x.size()
#define all(x) x.begin() , x.end()
const int inf = 1e9 + 7;
void solve(){
    int n,k;
    cin >> n >> k;
    int r[n][k] , u[n][k];
    for(int i = 0;i<n;i++)
    	for(int j = 0;j<k;j++)
    		cin >> r[i][j];
    for(int i = 0;i<n;i++)
    	for(int j = 0;j<k;j++)
    		cin >> u[i][j];
    vector<pair<int,int>>v[k];
    for(int j = 0;j<k;j++){
    	for(int i = 0;i<n;i++){
    		v[j].push_back({r[i][j] , i});
    	}
    	sort(all(v[j]));
    }
    int ptr[k] = {0} , cnt[n] , cur[k] = {0} , ans = 0;
    fill(cnt , cnt + n , k);
    while(true){
    	bool work = 0;
    	for(int i = 0;i<k;i++){
    		while(ptr[i] < sz(v[i]) and v[i][ptr[i]].first <= cur[i]){
    			work = 1;
    			int satir = v[i][ptr[i]].second;
    			cnt[satir]--;
    			if(cnt[satir] == 0){// completed
    				ans++;
    				for(int j = 0;j<k;j++){
    					cur[j] = min(inf , cur[j] + u[satir][j]);
    				}
    			}
    			ptr[i]++;
    		}
    	}
    	if(!work)break;
    }
   	cout << ans << endl;
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase=1;//cin >> testcase;
	while(testcase--)solve();
	cerr << 1000.0 * clock() / CLOCKS_PER_SEC << " ms" << endl;
}

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