Submission #934979

#	Time	Username	Problem	Language	Result	Execution time	Memory
934979		shinigami_09	Knapsack (NOI18_knapsack)	C++17	12 / 100	1051 ms	356 KiB

knapsack

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

int f(int n, int s, vector<int> &val, vector<int> &w, vector<int> &freq)
{
    if(s==0)return 0;
    if(n<0)return 0;
    int ans = 0;
    if(w[n]<=s and freq[n]>0){
        freq[n]--;
        ans = max( ans , val[n]+f(n,s-w[n],val,w,freq));
        freq[n]++;
        ans = max( ans , f(n-1,s,val,w,freq));
    }
    else{
        ans = max( ans , f(n-1,s,val,w,freq));
    }
    return ans;
}

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

    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);

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

    vector<int> val(n), w(n), freq(n);
    for (int i = 0; i < n; i++)
    {
        cin >> val[i] >> w[i] >> freq[i];
    }

    cout<< f(n-1,s,val,w,freq);

    return 0;
}

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