Submission #1010088

#	Time	Username	Problem	Language	Result	Execution time	Memory
1010088		Muhammet	Knapsack (NOI18_knapsack)	C++17	100 / 100	98 ms	12236 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;

#define N 300005
#define ll long long int
#define sz(x) (int)x.size()
#define ff first
#define ss second

ll T, n, s, dp[N];

vector <pair<ll,ll>> v1, v2[N];

int main(){

	cin >> s >> n;
	for(int i = 1; i <= n; i++){
		ll v, w, k;
		cin >> v >> w >> k;
		v2[w].push_back({-v,k});
	}

	for(int i = 1; i <= s; i++){
		if(sz(v2[i]) > 0){
			sort(v2[i].begin(), v2[i].end());
			ll x = (s/i);
			for(auto j : v2[i]){
				for(int j1 = 1; j1 <= min(x,j.ss); j1++){
					v1.push_back({-j.ff,i});
				}
				x -= min(x,j.ss);
			}
		}
	}

	for(auto i : v1){
		int v = i.ff, w = i.ss;
		for(int j = s; j >= 0; j--){
			if(dp[j] != 0 or j == 0){
				dp[j + w] = max(dp[j] + v, dp[j + w]);
			}
		}
	}
	ll mx = 0;
	for(int i = 1; i <= s; i++){
		mx = max(dp[i],mx);
	}
	cout << mx;

	return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 27 / 27