Submission #1014821

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014821		KindaGoodGames	Knapsack (NOI18_knapsack)	C++14	29 / 100	2 ms	348 KiB

knapsack

#include <bits/stdc++.h>

#define ll long long
//#define int ll
#define pii pair<int, int>
#define tiii tuple<int, int, int>

using namespace std;

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n, s;
    cin >> s >> n;

    vector<int> value(n), weight(n), capacity(n);

    vector<int> dp(s+1);

    for (int i = 0; i < n; i++)
    {
        cin >> value[i] >> weight[i] >> capacity[i];
    }

    if(n == 1){
        cout << min(s/weight[0], capacity[0]) * value[0];
        return 0;
    }

    for (int i = 0; i < n; i++)
    {
        int la = capacity[i];
        for (int j = s; j > 0; j--)
        {
            //dp[j] = max(dp[j],dp[j - 1]);
            if (j < weight[i])
                continue;
 
            for (int k = la; k > 0; k--)
            {
                if(j-(k*weight[i]) < 0){
                    la = k;
                     break;}
                if(dp[j] <dp[j - (k*weight[i])] + (k*value[i])){
                    dp[j] = dp[j - (k*weight[i])] + (k*value[i]);
                }
            }
        }
    }

    int ma = 0;
    for(int i = 0; i <= s; i++){
        ma = max(ma, dp[i]);
    }
    cout << ma;
}

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