Submission #1298237

#	Time	Username	Problem	Language	Result	Execution time	Memory
1298237		aslayeryl81	Knapsack (NOI18_knapsack)	C++20	73 / 100	1096 ms	25472 KiB

knapsack

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

signed main() 
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int s, n;
    cin>>s>>n;
    vector<pair<int, int>> dv; 
    dv.reserve(n);
    for(int i = 0; i < n; i++) 
    {
        int v, w, k;
        cin>>v>>w>>k;
        for(int b = 1; b <= k; b <<= 1) 
        {
            dv.emplace_back(w * b, v * b);
            k -= b;
        }
        if(k > 0)
            dv.emplace_back(w * k, v * k);
    }
    vector<int> dp(s + 1, 0);
    for(auto &it : dv) 
    {
        int w = it.first;
        int v = it.second;
        for(int x = s; x >= w; x--)
            dp[x] = max(dp[x], dp[x - w] * 1LL + v);
    }
    cout<<dp[s];
    return 0;
}

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