Submission #1172409

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172409		dbekarys	Knapsack (NOI18_knapsack)	C++20	29 / 100	5 ms	8008 KiB

knapsack

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

int dp[10007][2007];
signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie();
    
    int m,n;
    cin>> m>>n;
    bool ok = 0 ;
    if(n == 1) {
        ok = 1 ;
    }
    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;
        if(ok) {
            int s = m / a[i] ;
            if(s >= count) {
                cout << b[i] * count ;
            }
            else {
                cout << b[i] * s ;
            }
            return 0;
        }
        k.push_back(count);
        for(int j=0;j<count;j++){
            if(a[i]*(j+1)<=m)
            v1.push_back(a[i]);
            v2.push_back(b[i]);
        }
    }
    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: 17 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 24
• Subtask 5: 0 / 27