Submission #1209420

#	Time	Username	Problem	Language	Result	Execution time	Memory
1209420		Theo830	Kitchen (BOI19_kitchen)	C++20	31 / 100	8 ms	328 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ll,ii>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
int main(void){
    ll n,m,k;
    cin>>n>>m>>k;
    ll a[n];
    f(i,0,n){
        cin>>a[i];
    }
    ll b[m];
    f(i,0,m){
        cin>>b[i];
    }
    ll ans = 1e18;
    f(i,0,(1<<m)){
        ll posa = 0;
        ll sumi = 0;
        f(j,0,m){
            if(i & (1<<j)){
                posa += min(n,b[j]);
                sumi += b[j];
            }
        }
        f(j,0,n){
            if(a[j] < k){
                posa = 0;
            }
            sumi -= a[j];
        }
        if(sumi < 0){
            posa = 0;
        }
        if(posa >= n * k){
            ans = min(ans,sumi);
        }
    }
    if(ans != (ll)1e18){
        cout<<ans<<"\n";
    }
    else{
        cout<<"Impossible\n";
    }
}

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