Submission #808815

#	Time	Username	Problem	Language	Result	Execution time	Memory
808815		GoldLight	Knapsack (NOI18_knapsack)	C++17	29 / 100	2 ms	240 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
void fast(){ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);}

const int N=2e3;
long long dp[N+1];
int main(){
    fast();
    int s, n, v, w, k; cin>>s>>n;
    for(int i=1; i<=n; i++){
        cin>>v>>w>>k;
        for(int j=s; j>=1; j--){
            int ki=1, ka=k, ans=0;
            while(ki<=ka){
                int mid=(ki+ka)/2;
                if(1ll*w*mid<=1ll*j){
                    dp[j]=max(dp[j], dp[j-w*mid]+v*mid);
                    ki=mid+1;
                }
                else ka=mid-1;
            }
        }
    }
    cout<<dp[s];
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:13:29: warning: unused variable 'ans' [-Wunused-variable]
   13 |             int ki=1, ka=k, ans=0;
      |                             ^~~

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