Submission #648720

#	Time	Username	Problem	Language	Result	Execution time	Memory
648720		Lobo	Kitchen (BOI19_kitchen)	C++17	100 / 100	118 ms	199448 KiB

kitchen

#include<bits/stdc++.h>
using namespace std;
const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

const int maxn = 303;

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

void solve() {
    cin >> n >> m >> k;
    for(int i = 1; i <= n; i++)
        cin >> a[i];
    for(int i = 1; i <= m; i++) 
        cin >> b[i];

    int sma = 0;
    for(int i = 1; i <= n; i++) {
        sma+= a[i];
        if(a[i] < k) {
            cout << "Impossible" << endl; return;
        }
    }
    int smb = 0;
    for(int i = 1; i <= m; i++) smb+= b[i];
    
    dp[0][0] = 0;
    for(int i = 1; i <= smb; i++) dp[0][i] = -inf;

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

    int ans = inf;
    for(int i = sma; i <= smb; i++) {
        if(dp[m][i] >= n*k) {
            cout << i-sma << endl;
            return;
        }
    }
    cout << "Impossible" << endl;
}

int32_t main() {
    ios::sync_with_stdio(false); cin.tie(0);

    // freopen("in.in", "r", stdin);
    // freopen("out.out", "w", stdout);
    int tt = 1;
    // cin >> tt;
    while(tt--) {
        solve();
    }

}

Compilation message (stderr)

kitchen.cpp: In function 'void solve()':
kitchen.cpp:45:9: warning: unused variable 'ans' [-Wunused-variable]
   45 |     int ans = inf;
      |         ^~~

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