Submission #264942

#	Time	Username	Problem	Language	Result	Execution time	Memory
264942		Hehehe	Kitchen (BOI19_kitchen)	C++14	100 / 100	112 ms	114296 KiB

kitchen

#include<bits/stdc++.h> //:3
using namespace std;
typedef long long ll;
#define all(a) (a).begin(), (a).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define pi pair<int, int>
#define sz(x) (int)((x).size())
//#define int long long

const int dx[] = {0, 1, 0, -1};
const int dy[] = {1, 0, -1, 0};

const ll inf = 2e9;
const ll mod = 1e9 + 7;
const int N = 3e2 + 11;
const ll INF64 = 3e18 + 1;
const double eps = 1e-14;
const double PI = acos(-1);

//ifstream in(".in");
//ofstream out(".out");

int n, m, k, a[N], b[N], dp[N][N*N], s;


void solve(){

    cin >> n >> m >> k;

    for(int i = 1; i <= n; i++){
        cin >> a[i];
        s += a[i];
    }

    for(int i = 1; i <= m; i++){
        cin >> b[i];
    }
    
    for(int i = 1; i <= n; i++){
        if(a[i] < k){
            cout << "Impossible" << '\n';
            return;
        }
    }

    for(int i = 1; i < N*N; i++)dp[0][i] = -inf;

    for(int i = 1; i <= m; i++){
        for(int j = 0; j < N*N; j++){
            dp[i][j] = dp[i - 1][j];
            if(b[i] <= j){
                dp[i][j] = max(dp[i][j], dp[i - 1][j - b[i]] + min(n, b[i]));
            }
        }
    }

    for(int i = s; i < N*N; i++){
        if(dp[m][i] >= k*n){
            cout << i - s << '\n';
            return;
        }
    }


    cout << "Impossible" << '\n';
}



int32_t main(){
ios_base :: sync_with_stdio(0); cin.tie(0); cout.tie(0);

    //cout << setprecision(6) << fixed;

    int T = 1;
    //cin >> T;
    while(T--){
        solve();
    }
}

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