Submission #1089995

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089995		EmmaXII	Knapsack (NOI18_knapsack)	C++17	73 / 100	1051 ms	3676 KiB

knapsack

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

typedef long long ll;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vll = vector<ll>;
using vvll = vector<vector<ll>>;

#define all(x) x.begin(), x.end()
#define ckmin(a,b) a = min(a,b)
#define ckmax(a,b) a = max(a,b)


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

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

    vll V(N);
    vi W(N);
    vll K(N);

    for (int i=0;i<N;i++) cin >> V[i] >> W[i] >> K[i];

    vll dp(S+1, 0);
    for (int i=0;i<N;i++) {
        vll ndp(S+1, 0);

        for (int j=0;j<=S;j++) {
            for (int k=0;j+k*W[i]<=S && k <= K[i];k++) {
                ckmax(ndp[j+k*W[i]], dp[j] + k * V[i]);
            }
        }

        swap(dp, ndp);
    }

    cout << dp[S] << endl;

    return 0;
}

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