Submission #1005616

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005616		coolboy19521	Kitchen (BOI19_kitchen)	C++17	0 / 100	16 ms	860 KiB

kitchen

#pragma GCC optimize("Ofast")
#include"bits/stdc++.h"
#define int long long

using namespace std;

const int sz = 1e3 + 3;

int a[sz], b[sz];
int dp[sz * sz];

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    int n, m, k;
    cin >> n >> m >> k;

    int sm = 0;
    bool f = false;

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

        if (a[i] < k) {
            f = true;
        }
    }

    for (int i = 1; i <= m; i ++) {
        cin >> b[i];
    }

    if (f) {
        cout << "IMPOSSIBLE";
        return 0;
    }

    int S = accumulate(b + 1, b + 1 + m, 0)+1;

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

    for (int i = sm; i < sz * sz; i ++) {
        if (dp[i] >= n * k) {
            cout << i - sm << '\n';
            return 0;
        }
    }

    ex:
    cout << "IMPOSSIBLE\n";
}

Compilation message (stderr)

kitchen.cpp: In function 'int main()':
kitchen.cpp:62:5: warning: label 'ex' defined but not used [-Wunused-label]
   62 |     ex:
      |     ^~

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