Submission #482477

#	Time	Username	Problem	Language	Result	Execution time	Memory
482477		Ilsiya	Knapsack (NOI18_knapsack)	C++17	73 / 100	444 ms	34620 KiB

knapsack

#include<bits/stdc++.h>
using namespace std;
typedef int ll;
typedef vector<ll> vll;
typedef vector<char> vch;
typedef long double ld;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	ll s, n;
	cin >> s >> n;
	pair<pair<ll, ll>, ll> shop[n+1];
	for (ll i = 1; i <= n; i++) {
		cin >> shop[i].first.first >> shop[i].first.second >> shop[i].second;
	}
	ll dp[2005][2005];
	for (ll i = 0; i <= n; i++) {
		for (ll j = 0; j <= s; j++) {
			dp[i][j] = 0;
		}
	}
	for (ll i = 1; i <= n; i++) {
		for (ll j = 0; j <= s; j++) {
			ll cou = 0;
			while (cou*shop[i].first.second <= j && cou <= shop[i].second) {
				dp[i][j] = max(dp[i][j], dp[i-1][j - cou * shop[i].first.second] + cou * shop[i].first.first);
				cou++;
			}
		}
	}
	ll ans = 0;
	for (ll i = 0; i <= n; i++) {
		for (ll j = 0; j <= s; j++) {
			ans = max(ans, dp[i][j]);
		}
	}
	cout << ans; 
}

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27