Submission #698023

#	Time	Username	Problem	Language	Result	Execution time	Memory
698023		xr_c	Knapsack (NOI18_knapsack)	C++17	73 / 100	1090 ms	2328 KiB

knapsack

#include <cstring>
#include <iostream>
using namespace std;
int s, n, w[100001], v[100001], k[100001];
int dp[2001];
int main() {
    // freopen("debug.cerr", "w", stderr);
    memset(dp, 0, sizeof(dp));
    cin >> s >> n;
    for (int i = 1; i <= n; i++) {
        cin >> v[i] >> w[i] >> k[i];
    }
    // for (int i = 1; i <= n; i++)
    //     cerr << k[i] << ' ';
    // cerr << endl;
    for (int i = 1; i <= n; i++) {
        for (int j = s; j >= 1; j--) {
            for (int l = 1; l <= k[i] && l * w[i] <= j; l++) {
                dp[j] = max(dp[j], dp[j - l * w[i]] + l * v[i]);
            }
        }
    }
    // for (int i = 1; i <= n; i++) {
    //     for (int j = 1; j <= s; j++) {
    //         cerr << dp[i][j] << '\t';
    //     }
    //     cerr << endl;
    // }
    cout << dp[s] << endl;
}

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