Submission #1259721

#	Time	Username	Problem	Language	Result	Execution time	Memory
1259721		krisnandaaa	Knapsack (NOI18_knapsack)	C++20	37 / 100	1 ms	328 KiB

knapsack

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

const int smax = 2000;
ll dp[2][smax+5]; 
int main (){
    ios::sync_with_stdio(0);
    cin.tie(0);
    int s,n; 
    cin >> s >> n;
    int cur = 0, nxt = 1;
    for(int i=1;i<=n;i++){
        ll v,w,k; 
        cin >> v >> w >> k;
        ll pw = 1;
        while(k > 0){
            ll take = min(pw, k);
            k -= take;
            int wt = (int)(w * take);
            ll val = v * take;
            for(int cap=0; cap<=s; cap++) dp[nxt][cap] = dp[cur][cap];

            for(int cap=wt; cap<=s; cap++){
                dp[nxt][cap] = max(dp[nxt][cap], dp[cur][cap-wt] + val);
            }
            swap(cur,nxt);
            pw <<= 1;
        }
    }
    cout << dp[cur][s] << "\n";
}

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