Submission #700198

#	Time	Username	Problem	Language	Result	Execution time	Memory
700198		mariacichosz	Knapsack (NOI18_knapsack)	C++17	73 / 100	1087 ms	1836 KiB

knapsack

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

#define ll long long

const int N = 1e5 + 5;
const int S = 2005;

ll dp[S];
ll value[N];
int weight[N];
int amount[N];

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n, s;
    cin >> s >> n;
    for (int i = 0; i < n; i ++) cin >> value[i] >> weight[i] >> amount[i];
    for (int i = 0; i < n; i ++){
        ll v = value[i]; int w = weight[i], a = amount[i];
        a = min(a, s / w);
        for (int j = s; j >= 0; j --){
            for (int k = 1; k <= min(a, (s - j) / w); k ++){
                dp[j + k * w] = max(dp[j + k * w], dp[j] + k * v);
            }
        }
    }
    ll ans = 0;
    for (int i = 0; i <= s; i ++) ans = max(ans, dp[i]);
    cout << ans << "\n";
}

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