제출 #386557

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
386557		Uncreative	Kitchen (BOI19_kitchen)	C++14	100 / 100	122 ms	114048 KiB

kitchen

#include<iostream>
#include<algorithm>
#include<cstring>

using namespace std;

int n, m, k;
const int maxn = 310;
const int inf = maxn * maxn + 400;

int a[maxn];
int az = 0;

int b[maxn];

int dp[maxn][inf];

int sol = inf;

int main(){
    //memset(dp, -inf, sizeof(dp));
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> m >> k;
    int r = 0;
    for (int i = 0; i < n; i++){
        cin >> a[i];
        az += a[i];
        if (a[i] < k){
            r = 1;
        }
    }
    for (int i = 0; i < m; i++){
        cin >> b[i];
    }

    for (int i = 0; i <= m; i++){
        for (int j = 0; j < maxn * maxn; j++){
            dp[i][j] = -inf;
        }
    }
    dp[m][0] = 0;
    for (int i = m - 1; i >= 0; i--){
        for (int j = maxn * maxn; j >= 0; j--){
            //dp[i][j] = dp[i + 1][j - b[i]] + min(n, b[i]);
            dp[i][j] = dp[i + 1][j];
            dp[i][j + b[i]] = max(dp[i][j + b[i]], dp[i + 1][j] + min(n, b[i]));
        }
    }
    //cout << az << endl;
    for (int j = maxn * maxn; j >= 0; j--){
        if (dp[0][j] >= k * n && j >= az){
            sol = min(sol, j);
        }
    }
    if (r == 0 && sol != inf){
        cout << sol - az;
    }
    else {
        cout << "Impossible";
    }
}

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