Submission #1305830

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305830		DanielPr8	Kitchen (BOI19_kitchen)	C++20	100 / 100	122 ms	198792 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvl = vector<vll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvp = vector<vpl>;

#define f first
#define s second
#define pb push_back
#define all(v) v.begin(), v.end()

int main(){
    ios_base::sync_with_stdio(0);cin.tie(NULL);
    ll n, m, k, sma=0, smb, mn=1e6;
    cin >> n >> m >> k;
    for(ll i = 0; i < n; ++i){
        ll a;
        cin >> a;
        mn = min(a, mn);
        sma+=a;
    }
    vll b(m);
    for(ll& i:b){cin >> i;smb+=i;}
    if(mn<k){
        cout << "Impossible";
        return 0;
    }
    vvl dp(m+1, vll(smb+1, -1e9));
    dp[0][0]=0;
    for(ll i = 1; i <= m; ++i){
        for(ll j = 0; j <= smb; ++j){
            dp[i][j] = dp[i-1][j];
            if(j>=b[i-1])dp[i][j] = max(dp[i][j], dp[i-1][j-b[i-1]]+min(b[i-1],n));
        }
    }
    mn = 1e9;
    for(ll j = sma; j <= smb; ++j){
        if(dp[m][j]>=n*k){
            mn=j;
            break;
        }
    }
    if(mn==1e9)cout << "Impossible";
    else cout << mn-sma;

}

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