Submission #1203026

#TimeUsernameProblemLanguageResultExecution timeMemory
1203026bahaktlKnapsack (NOI18_knapsack)C++20
73 / 100
435 ms327680 KiB
#include <bits/stdc++.h> using namespace std; #define sz size() #define nah "No\n" #define yeah "Yes\n" #define F first #define S second #define int long long #define pb push_back #define all(x) (x).begin(),(x).end() #define rall(x) (x).rbegin(),(x).rend() const int inf=1e13; const int N=100000+23; const int mod=1e9+7; int dp[2001*2001],w[N],c[N],a[N]; signed main() { ios_base::sync_with_stdio(false);cin.tie(nullptr); // freopen("snakes.in","r",stdin); // freopen("snakes.out","w",stdout); int n,k; cin>>k>>n; vector<pair<int,int>>v; for(int i=1;i<=n;i++) { cin>>c[i]>>w[i]>>a[i]; if(w[i]>k){ continue; } int sum=w[i]; while(sum<=k && a[i]--) { v.pb({w[i],c[i]}); sum+=w[i]; } } for(auto [weight,val]:v) { for(int j=k;j>=weight;j--) { dp[j]=max(dp[j],dp[j-weight]+val); } } int ans=-inf; for(int i=1;i<=k;i++) { ans=max(ans,dp[i]); } cout<<ans; }
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