Submission #1254358

#	Time	Username	Problem	Language	Result	Execution time	Memory
1254358		labibrafid	Knapsack (NOI18_knapsack)	C++20	73 / 100	1071 ms	456 KiB

knapsack

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
using namespace std;

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

    ll ttt = 1, n, i, k, j, q = 0, m;
    //cin >> ttt;
    while(ttt--){
        ll wt;
        cin >> wt >> n;

        vector<ll> dp(wt + 2, 0);
        for(i = 0; i < n; ++i){
            ll val, w, kk;
            cin >> val >> w >> kk;

            for(k = 1; kk > 0; k <<= 1){

                ll need = min(kk, k);
                kk -= need;
                ll value = val * need, weight = w * need;

                for(j = wt; j - weight >= 0; --j){
                    dp[j] = max(dp[j], dp[j - weight] + value);
                }
            }
        }
        cout << dp[wt];
    }
}

/*

8 3
3 30 1
4 50 1
5 60 1


*/

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