oj.uz

Submission #567201

# Submission time Handle Problem Language Result Execution time Memory
567201 2022-05-23T09:14:10 Z shrimb Kitchen (BOI19_kitchen) C++17
100 / 100
 294 ms 213900 KB 
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

#include"bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

const int maxn = 301;

int n, m, k, cntAK, cntBN, smA, smB, ans = 1e9;

int A[maxn], B[maxn];
int dp[maxn][maxn*maxn];

int rec (int i, int sm) {
    if (sm == 0) return 0;
    if (i == m || sm < 0) return -INT_MAX;
    if (dp[i][sm] != -1) return dp[i][sm];
    return dp[i][sm] = max(rec(i + 1, sm), rec(i + 1, sm - B[i]) + min(B[i], n));
}

signed main () {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> m >> k;
    for (int i = 0 ; i < n ; i++) {
        cin >> A[i];
        smA += A[i];
        if (A[i] < k) cntAK++;
    }
    for (int i = 0 ; i < m ; i++) {
        cin >> B[i];
        cntBN += min(n, B[i]);
        smB += B[i];
    }
    if (m < k || smB < smA || cntBN/n < k || cntAK) {
        // assert(0);
        cout << "Impossible\n";
        return 0;
    }
    memset(dp, -1, sizeof dp);
    for (int i = smA ; i < maxn * maxn ; i++) {
        if (rec(0, i) / n >= k) {
            ans = min(ans, i - smA);
            break;
        }
    }
    cout << ans << endl;
}


/*

impossible:

- M < K
- sum of B < sum of A
- the number of (B >= N) is < K
- theres an A which is < K

*/

Compilation message

kitchen.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 213752 KB Output is correct
2 Correct 104 ms 213708 KB Output is correct
3 Correct 81 ms 213740 KB Output is correct
4 Correct 83 ms 213708 KB Output is correct
5 Correct 82 ms 213736 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 213752 KB Output is correct
2 Correct 104 ms 213708 KB Output is correct
3 Correct 81 ms 213740 KB Output is correct
4 Correct 83 ms 213708 KB Output is correct
5 Correct 82 ms 213736 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 83 ms 213764 KB Output is correct
10 Correct 85 ms 213756 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 89 ms 213712 KB Output is correct
13 Correct 83 ms 213680 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 127 ms 213668 KB Output is correct
2 Correct 119 ms 213784 KB Output is correct
3 Correct 153 ms 213688 KB Output is correct
4 Correct 229 ms 213708 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 122 ms 213872 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 213728 KB Output is correct
2 Correct 81 ms 213720 KB Output is correct
3 Correct 84 ms 213684 KB Output is correct
4 Correct 83 ms 213768 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 213752 KB Output is correct
2 Correct 104 ms 213708 KB Output is correct
3 Correct 81 ms 213740 KB Output is correct
4 Correct 83 ms 213708 KB Output is correct
5 Correct 82 ms 213736 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 83 ms 213764 KB Output is correct
10 Correct 85 ms 213756 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 89 ms 213712 KB Output is correct
13 Correct 83 ms 213680 KB Output is correct
14 Correct 127 ms 213668 KB Output is correct
15 Correct 119 ms 213784 KB Output is correct
16 Correct 153 ms 213688 KB Output is correct
17 Correct 229 ms 213708 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 122 ms 213872 KB Output is correct
20 Correct 85 ms 213728 KB Output is correct
21 Correct 81 ms 213720 KB Output is correct
22 Correct 84 ms 213684 KB Output is correct
23 Correct 83 ms 213768 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 178 ms 213780 KB Output is correct
26 Correct 294 ms 213776 KB Output is correct
27 Correct 108 ms 213712 KB Output is correct
28 Correct 155 ms 213784 KB Output is correct
29 Correct 191 ms 213892 KB Output is correct
30 Correct 231 ms 213900 KB Output is correct