Submission #949953

#	Time	Username	Problem	Language	Result	Execution time	Memory
949953		Darren0724	Kitchen (BOI19_kitchen)	C++17	21 / 100	19 ms	860 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define int long long
#define all(x) x.begin(), x.end()
#define endl '\n'
#define no cout<<"Impossible"<<endl;return 0;
const int N=200005;
const int INF=1e18;

int32_t main() {
    LCBorz;
    int n,m,k;cin>>n>>m>>k;
    if(m<k){
        no;
    }
    vector<int> a(n),b(m);
    int total=0,ta=0,tb=0;
    for(int i=0;i<n;i++){
        cin>>a[i];
        if(a[i]<k){
            no;
        }
        total+=a[i];
    }
    for(int i=0;i<m;i++){
        cin>>b[i];
        ta+=b[i];
    }
    vector dp(ta+1,(int)0);
    for(int i=0;i<m;i++){
        for(int j=ta;j>=b[i];j--){
            int tmp=min(b[i],n);
            dp[j]=max(dp[j],dp[j-b[i]]+tmp);
        }
    }
    int ans=-1;
    for(int i=total;i<=ta;i++){
        if(dp[i]>=k*n){
            ans=i;break;
        }
        
    }
    if(ans==-1){
        no;
    }
    else{
        cout<<ans-total<<endl;
    }

    return 0;
}

Compilation message (stderr)

kitchen.cpp: In function 'int32_t main()':
kitchen.cpp:18:22: warning: unused variable 'tb' [-Wunused-variable]
   18 |     int total=0,ta=0,tb=0;
      |                      ^~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 20
• Subtask 4: 21 / 21
• Subtask 5: 0 / 28