Submission #875970

#	Time	Username	Problem	Language	Result	Execution time	Memory
875970		andro	Knapsack (NOI18_knapsack)	C++14	29 / 100	1 ms	1884 KiB

knapsack

#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int S,n;
    cin>>S>>n;
    int V[n+1];
    int W[n+1];
    int K[n+1];
    for(int i=1;i<=n;i++)cin>>V[i]>>W[i]>>K[i];
    if(n==1){
        cout<<min(K[1],S/W[1])*V[1];
        return 0;
    }
    int ok=1;
    for(int i=1;i<=n;i++)if(K[i]!=1)ok=0;
    if(ok){
        int dp[n+1][S+1];
        for(int i=0;i<=n;i++)for(int j=0;j<=S;j++)dp[i][j]=0;
        for(int i=1;i<=n;i++){
            for(int j=0;j<=S;j++)dp[i][j]=dp[i-1][j];
            for(int j=W[i];j<=S;j++){
                dp[i][j]=max(dp[i][j],dp[i-1][j-W[i]]+V[i]);
            }
        }
        int ans=0;
        for(int i=1;i<=S;i++){
            ans=max(ans,dp[n][i]);
        }
        cout<<ans;
        return 0;
    }
}

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