Submission #1118076

#	Time	Username	Problem	Language	Result	Execution time	Memory
1118076		vjudge1	Knapsack (NOI18_knapsack)	C++14	49 / 100	4 ms	512 KiB

knapsack

#include <bits/stdc++.h>
#define sts(v) stable_sort(v.BE, v.E)
#define Rsts(v) stable_sort(v.rBE, v.rE)
#define rev(v) reverse(v.BE, v.E)
#define BE begin()
#define rBE rbegin()
#define E end()
#define rE rend()
#define pb push_back
#define ppb pop_back()
#define pf push_front
#define ppf pop_front()
#define F first
#define S second

using namespace std;
using ll = long long;

struct datos{
    int val, w, k;
};

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

    int W, n; cin >> W >> n;
    vector<datos> v(n + 1);

    for(int i = 1; i <= n; i++){
        int val, w, k; cin >> val >> w >> k;

        v[i] = {val, w, k};
    }
    if(n == 1){
        ll sum = 0;
        int mini = min(v[1].k, W / v[1].w);
        while(mini--)
            sum += v[1].val;
        cout << sum;
        return 0;
    }
    vector<ll> ans(W + 1);
    
    for(int i = 1; i <= n; i++)
        for(int w = W; w >= 0; w--)
            for(int k = 1; k <= min(10, v[i].k); k++){
                int x = w + v[i].w * k;
                if(x <= W) ans[x] = max(ans[x], ans[w] + v[i].val * k);
            }
    ll res = 0;
    for(int i = 0; i <= W; i++)
        res = max(res, ans[i]);
    cout << res;
            


    return 0;
}

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