Submission #1271736

#	Time	Username	Problem	Language	Result	Execution time	Memory
1271736		pvb.tunglam	Knapsack (NOI18_knapsack)	C++20	37 / 100	1 ms	328 KiB

knapsack

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

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int S, N;
    cin >> S >> N;

    vector<int> V, W;
    for (int i = 1; i <= N; i++) {
        int v, w, k;
        cin >> v >> w >> k; // đúng thứ tự theo đề

        int pow = 1;
        while (k >= pow) {
            V.push_back(v * pow);
            W.push_back(w * pow);
            k -= pow;
            pow <<= 1;
        }
        if (k > 0) {
            V.push_back(v * k);
            W.push_back(w * k);
        }
    }

    vector<int> dp(S + 1, 0);
    int n = V.size();
    for (int i = 0; i < n; i++) {
        for (int j = S; j >= W[i]; j--) {
            dp[j] = max(dp[j], dp[j - W[i]] + V[i]);
        }
    }
    cout << dp[S] << "\n";
}

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