Submission #548241

#TimeUsernameProblemLanguageResultExecution timeMemory
548241vlad_TTRack (eJOI19_rack)C++17
100 / 100
10 ms336 KiB
#include <iostream> #define int long long const int MOD = 1e9 + 7; signed main() { int n, k; std::cin >> n >> k; int answer = 0; k--; for (int i = 1; i <= n; i++) { answer = (answer * 2 % MOD + k % 2) % MOD; k /= 2; } answer++; std::cout << answer % MOD; return 0; }
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