oj.uz

Submission #169388

# Submission time Handle Problem Language Result Execution time Memory
169388 2019-12-20T07:24:49 Z ruler Kitchen (BOI19_kitchen) C++14
100 / 100
 66 ms 1152 KB 
// IOI 2021
#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define ends ' '
#define die(x) return cout << x << endl, 0
#define all(v) v.begin(), v.end()
#define sz(x) (int)(x.size())
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) { cerr << ends << H; debug_out(T...); }
#define debug(...) cerr << "{" << #__VA_ARGS__ << "}:", debug_out(__VA_ARGS__)
typedef long long ll;
typedef pair<int, int> pii;
const ll INF = 1e9;
const ll MOD = 1e9 + 7;

////////////////////////////////////////////////////////////////////

const int N = 3e2 + 5;

int B[N], DP[2][N * N];

int main() {

	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	
	int n, m, k, sum = 0; cin >> n >> m >> k;
	if (m < k) die("Impossible");
	for (int i = 0; i < n; i++) {
		int a; cin >> a;
		sum += a;
		if (a < k) die("Impossible");
	}
	for (int i = 1; i <= m; i++) for (int j = 0; j < N * N; j++) DP[i & 1][j] = -INF;
	DP[0][0] = 0;
	for (int i = 1; i <= m; i++) cin >> B[i];
	for (int i = 1; i <= m; i++) for (int j = 0; j < N * N; j++) {
		DP[i & 1][j] = DP[(i - 1) & 1][j];
		if (j >= B[i]) DP[i & 1][j] = max(DP[i & 1][j], DP[(i - 1) & 1][j - B[i]] + min(B[i], n));
	}
	for (int i = 0; i + sum < N * N; i++) if (DP[m & 1][i + sum] >= n * k) die(i);
	cout << "Impossible" << endl;

	return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1016 KB Output is correct
3 Correct 3 ms 1016 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 1016 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1016 KB Output is correct
3 Correct 3 ms 1016 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 1016 KB Output is correct
9 Correct 6 ms 1144 KB Output is correct
10 Correct 6 ms 1020 KB Output is correct
11 Correct 6 ms 1144 KB Output is correct
12 Correct 5 ms 1144 KB Output is correct
13 Correct 5 ms 1016 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 1152 KB Output is correct
2 Correct 51 ms 1144 KB Output is correct
3 Correct 66 ms 1144 KB Output is correct
4 Correct 66 ms 1144 KB Output is correct
5 Correct 64 ms 1016 KB Output is correct
6 Correct 47 ms 1144 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1016 KB Output is correct
2 Correct 11 ms 1148 KB Output is correct
3 Correct 11 ms 1144 KB Output is correct
4 Correct 11 ms 1016 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1016 KB Output is correct
3 Correct 3 ms 1016 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 1016 KB Output is correct
9 Correct 6 ms 1144 KB Output is correct
10 Correct 6 ms 1020 KB Output is correct
11 Correct 6 ms 1144 KB Output is correct
12 Correct 5 ms 1144 KB Output is correct
13 Correct 5 ms 1016 KB Output is correct
14 Correct 58 ms 1152 KB Output is correct
15 Correct 51 ms 1144 KB Output is correct
16 Correct 66 ms 1144 KB Output is correct
17 Correct 66 ms 1144 KB Output is correct
18 Correct 64 ms 1016 KB Output is correct
19 Correct 47 ms 1144 KB Output is correct
20 Correct 11 ms 1016 KB Output is correct
21 Correct 11 ms 1148 KB Output is correct
22 Correct 11 ms 1144 KB Output is correct
23 Correct 11 ms 1016 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 48 ms 1140 KB Output is correct
26 Correct 55 ms 1016 KB Output is correct
27 Correct 36 ms 1016 KB Output is correct
28 Correct 54 ms 1140 KB Output is correct
29 Correct 55 ms 1020 KB Output is correct
30 Correct 66 ms 1148 KB Output is correct