Submission #1165460

#	Time	Username	Problem	Language	Result	Execution time	Memory
1165460		enzy	Knapsack (NOI18_knapsack)	C++20	73 / 100	344 ms	327680 KiB

knapsack

#include <bits/stdc++.h>
#define int long long
using namespace std;
const int maxs=2e3+10;
const int maxn=1e5+10;
const int inf=1e18+10;
int dp[maxs], v[maxn], w[maxn], k[maxn];
signed main()
{
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    int s, n; cin >> s >> n;
    vector<pair<int,int>>process;
    for(int i=1;i<=n;i++){
        cin >> v[i] >> w[i] >> k[i];
        for(int q=1;q<=min(k[i],(s/w[i]));q++) process.push_back({w[i],v[i]});
    }
    for(int i=0;i<process.size();i++){
        pair<int,int>p=process[i];
        for(int j=s;j>=0;j--){
            if(p.first<=j) dp[j]=max(dp[j],dp[j-p.first]+p.second);
        }
    }
    int resp=0;
    for(int i=0;i<=s;i++) resp=max(resp,dp[i]);
    cout << resp << endl;
    return 0;
}

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