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Submission #404903

# Submission time Handle Problem Language Result Execution time Memory
404903 2021-05-15T09:18:35 Z saleh Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 212 ms 16720 KB 
#include <bits/stdc++.h>

#define int long long
#define lowval(x) (x & (-x))
#define lowind __builtin_ctzll

using namespace std;


const int MAXN = 40 + 3;















int n, m, c[MAXN], dp[(1 << (MAXN >> 1))], pd[(1 << (MAXN >> 1))], ans;



int32_t main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr), cout.tie(nullptr);
	cin >> n >> m;
	for (int i = 0; i < n; i++) cin >> c[i];
	for (int i = 1; i < (1 << (n >> 1)); i++) dp[i] = c[lowind(i)] + dp[i - lowval(i)];
	for (int i = 1; i < (1 << (n - (n >> 1))); i++) pd[i] = c[lowind(i) + (n >> 1)] + pd[i - lowval(i)];
	sort(dp, dp + (1 << (n >> 1)));
	sort(pd, pd + (1 << (n - (n >> 1))));
	for (int i = 0, j = (1 << (n - (n >> 1))) - 1; i < (1 << (n >> 1)); i++) {
		while (~j && pd[j] + dp[i] > m) j--;
		ans += j + 1;
	}
	cout << ans;
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 1864 KB Output is correct
2 Correct 49 ms 4428 KB Output is correct
3 Correct 210 ms 16720 KB Output is correct
4 Correct 49 ms 4428 KB Output is correct
5 Correct 7 ms 1356 KB Output is correct
6 Correct 6 ms 844 KB Output is correct
7 Correct 11 ms 1356 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2252 KB Output is correct
2 Correct 18 ms 1868 KB Output is correct
3 Correct 73 ms 8524 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 3 ms 836 KB Output is correct
6 Correct 11 ms 1356 KB Output is correct
7 Correct 11 ms 1356 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 3404 KB Output is correct
2 Correct 73 ms 6476 KB Output is correct
3 Correct 74 ms 6468 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 32 ms 6436 KB Output is correct
6 Correct 159 ms 16716 KB Output is correct
7 Correct 72 ms 6476 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 12612 KB Output is correct
2 Correct 17 ms 1868 KB Output is correct
3 Correct 6 ms 844 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 4 ms 844 KB Output is correct
6 Correct 148 ms 12632 KB Output is correct
7 Correct 11 ms 1356 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 1864 KB Output is correct
2 Correct 48 ms 4428 KB Output is correct
3 Correct 6 ms 808 KB Output is correct
4 Correct 6 ms 840 KB Output is correct
5 Correct 38 ms 6476 KB Output is correct
6 Correct 16 ms 1868 KB Output is correct
7 Correct 196 ms 16720 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 206 ms 16664 KB Output is correct
2 Correct 19 ms 1868 KB Output is correct
3 Correct 6 ms 848 KB Output is correct
4 Correct 212 ms 16704 KB Output is correct
5 Correct 48 ms 8524 KB Output is correct
6 Correct 11 ms 1356 KB Output is correct
7 Correct 22 ms 2380 KB Output is correct