Submission #1136402

#	Time	Username	Problem	Language	Result	Execution time	Memory
1136402		tsengang	Knapsack (NOI18_knapsack)	C++20	73 / 100	1096 ms	16796 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define ertunt return

int main() {
    ll s, n;
    cin >> s >> n;
    vector<pair<ll, ll>> items;
    for (ll i = 0; i < n; i++) {
        ll v, w, k;
        cin >> v >> w >> k;
        for (ll j = 1; k > 0; j <<= 1) {
            ll take = min(j, k);
            items.pb({v * take, w * take});
            k -= take;
        }
    }
    vector<ll> dp(s + 1, 0);
    for (auto [v, w] : items) {
        for (ll j = s; j >= w; j--) {
            dp[j] = max(dp[j], dp[j - w] + v);
        }
    }
    cout << dp[s];
    ertunt 0;
}

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