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Submission #1097216

# Submission time Handle Problem Language Result Execution time Memory
1097216 2024-10-06T12:33:10 Z vjudge1 Rack (eJOI19_rack) C++17
100 / 100
 4 ms 348 KB 
//#pragma GCC optimize ("Ofast")
#include <bits/stdc++.h>
using namespace std;
#define double long double
#define int long long
#define F first
#define S second
const int mod = 1e9+7;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, k;
	cin >> n >> k;
	k--;
	int ans = 0, p = 1;
	for (int i = 1; i <= n; i++) {
		if (n-i <= 60 && ((1LL << (n-i))&k) != 0)
			ans += p;
		ans %= mod;
		p *= 2;
		p %= mod;
	}
	
	cout << ans+1 << "\n";
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 4 ms 348 KB Output is correct