제출 #1331396

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1331396		kride024	Knapsack (NOI18_knapsack)	C++20	17 / 100	1 ms	344 KiB

knapsack

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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    long long S, n;
    cin >> S >> n;

    vector<long long> dp(S + 1, 0);

    for (int i = 0; i < n; i++) {
        long long v, w, k;
        cin >> v >> w >> k;

        // Binary splitting
        for (long long j = 1; j <= k; j <<= 1) {
            long long take = min(j, k);
            long long value = v * take;
            long long weight = w * take;

            // 0/1 knapsack transition (backward)
            for (long long s = S; s >= weight; s--) {
                dp[s] = max(dp[s], dp[s - weight] + value);
            }

            k -= take;
        }
    }

    cout << dp[S] << "\n";
}

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