Submission #1172379

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172379		dbekarys	Knapsack (NOI18_knapsack)	C++20	12 / 100	1 ms	1096 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
//vector<int>v[N];

int dp[100][2000];
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie();
    
    int m,n;
    cin>> m>>n;
    int a[n+1],b[n+1];
    vector<int>v1,v2,k;
    for(int i=1,count;i<=n;i++){
        cin>> b[i]>>a[i]>>count;
        k.push_back(count);
        for (int power = 1; power <= count; power *= 2) {
            v1.push_back(a[i] * count);
            v2.push_back(b[i] * count);
            count -= power;
        }
        if (count > 0) {
            v1.push_back(a[i] * count);
            v2.push_back(b[i] * count);
        }
    }
    if(n == 1) {
        int s = m / a[1] ;
        if(s >= k[0]) {
            cout << b[1] * k[0] ;
        }
        else {
            cout << b[1] * s ;
        }
        return 0;
    }
    for(int i=1;i<=v1.size();i++){
        for(int j=1;j<=m;j++){
            dp[i][j]=dp[i-1][j];
            if(v1[i-1]<=j){
                dp[i][j]=max(dp[i][j],dp[i-1][j-v1[i-1]]+v2[i-1]);
            }
        }
    }
    cout<< dp[v1.size()][m];
}

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