Submission #1198842

#	Time	Username	Problem	Language	Result	Execution time	Memory
1198842		ericl23302	Knapsack (NOI18_knapsack)	C++20	73 / 100	1093 ms	328 KiB

knapsack

#include <iostream>
#include <vector>
#include <algorithm>

#define int long long

using namespace std;

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

    int s, n; cin >> s >> n;
    vector<int> dp(s + 1, 0);
    while (n--) {
        int v, w, k; cin >> v >> w >> k;
        int i;
        for (i = 1; (i * 2 - 1) <= k && i * w <= s; i *= 2) {
            for (int j = s; j >= i * w; --j) dp[j] = max(dp[j], dp[j - i * w] + i * v);
        }
        --i;
        i = (k - i);
        for (int j = s; j >= i * w; --j) dp[j] = max(dp[j], dp[j - i * w] + i * v);
    }

    int res = 0;
    for (int i : dp) res = max(res, i);
    cout << res << '\n';

    return 0;
}

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