Submission #1266322

#	Time	Username	Problem	Language	Result	Execution time	Memory
1266322		nathlol2	Knapsack (NOI18_knapsack)	C++20	0 / 100	0 ms	324 KiB

knapsack

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

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int s, n;
    cin >> s >> n;
    vector<int> a, b;
    for(int i = 0;i<n;i++){
        int p, w, m;
        cin >> p >> w >> m;
        for(int j = 1;j<=m;j++){
            if(w * j > s){
                break;
            }
            a.push_back(p * j);
            b.push_back(w * j);
        }
    }
    int sz = a.size();
    vector<int> dp(s + 1), prev(s + 1);
    for(int i = 0;i<sz;i++){
        for(int j = s;j>=b[i];j--){
            dp[j] = max(dp[j], prev[j - b[i]] + a[i]);
        }
        swap(dp, prev);
    }
    cout << prev[s] << '\n';
}

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