Submission #724041

#	Time	Username	Problem	Language	Result	Execution time	Memory
724041		ivaziva	Knapsack (NOI18_knapsack)	C++14	100 / 100	136 ms	5236 KiB

knapsack

    #include <bits/stdc++.h> 
     
    using namespace std;
    typedef long long ll;
     
    struct Produkt{
    	ll v,w,k;
    };
     
     
    int main(){
        ios::sync_with_stdio(0);
        cin.tie(nullptr);
        cout << fixed << setprecision(8);
     
        int s,n; cin >> s >> n;
    	
    	vector<priority_queue<pair<ll,ll>>> weights(s+1);
    	vector<Produkt> p;
    	for(int i = 0;i<n;i++){
    		Produkt pt;
    		cin >> pt.v >> pt.w >> pt.k;
    		weights[pt.w].push({pt.v,pt.k});
    	}
    	for(int i = 1;i<=s;i++){
    		ll anzahl = s/i;
    		while(anzahl && !weights[i].empty()){
    			pair<ll,ll> f = weights[i].top(); weights[i].pop();
    			Produkt px; px.w = i; px.v = f.first;
    			for(int j = 0;j<min(anzahl,f.second);j++){
    				p.push_back(px);
    			}
    			anzahl -= min(anzahl, f.second);
    		}
    	}
    	vector<ll> dp(s+1,0);
    	ll ans = 0;
    	for(int i = 0;i<(int)p.size();i++){
    		for(int j = p[i].w;j<=s;j++){
    			dp[j-p[i].w] = max(dp[j-p[i].w],dp[j] + p[i].v);
    			ans = max(ans,dp[j-p[i].w]);
    		}
    	}
    	cout << ans;
    }

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