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Submission #404899

# Submission time Handle Problem Language Result Execution time Memory
404899 2021-05-15T09:06:37 Z saleh Ice Hockey World Championship (CEOI15_bobek) C++17
10 / 100
 12 ms 16716 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 + (n >> 1));
	sort(pd, pd + 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
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1868 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3404 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 12640 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1868 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 16716 KB Output isn't correct
2 Halted 0 ms 0 KB -