Submission #1184096

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184096		sigmalord	Knapsack (NOI18_knapsack)	C++20	73 / 100	1096 ms	8404 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
long long n,s,dp[1000005];



int main (){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    memset(dp,0,sizeof dp);
    cin >> s >> n;
    for (int i = 1; i <= n; i++){
        long long w,v,a;
        cin >> v >> w >> a;
        if (w * a >= s){
            for (int j = w; j <= s; j++){
                dp[j] = max(dp[j],dp[j - w] + v);
            }
        }
        else{
            long long temp = 1;
            while (a > 0){
                long long take = min(temp,a);
                for (int j = s; j >= w * take; j--){
                    dp[j] = max(dp[j - w * take] + take * v,dp[j]);
                }
                a -= take;
                temp *= 2;
            }
        }
    }
    cout << dp[s];
}

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