제출 #1303672

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1303672		zhen	Knapsack (NOI18_knapsack)	C++17	73 / 100	1095 ms	2840 KiB

knapsack

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    // freopen("template.in", "r", stdin);
    // freopen("template.out", "w", stdout);
    
    ll s, n; cin >> s >> n;
    vector<ll> v(n + 1), w(n + 1), k(n + 1);
    for (ll i = 1; i <= n; ++i){
        cin >> v[i] >> w[i] >> k[i];
    }
    
    vector<ll> f(s + 1);
    for (ll i = 1; i <= n; ++i){
        for (ll j = 0; j < w[i]; ++j){
            deque<pair<ll, ll>> mq;
            for (ll c = j; c <= s; c += w[i]){
                ll l = (c - j)/w[i];
                ll cval = f[c] - l * v[i];
                if (!mq.empty() && mq.front().second == l - k[i] - 1){mq.pop_front();}
                while (!mq.empty() && mq.back().first < cval){mq.pop_back();}
                mq.push_back({cval, l});

                f[c] = mq.front().first + l * v[i];
            }
        }
    }
    cout << f[s];
}

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