제출 #876556

#제출 시각아이디문제언어결과실행 시간메모리
876556MinaRagy06Brperm (RMI20_brperm)C++17
0 / 100
2 ms2396 KiB
#include <bits/stdc++.h> #include "brperm.h" #ifdef MINA #include "grader.cpp" #endif using namespace std; #define ll long long int rev(int x, int k) { int y = 0; for (int i = 0; i < k; i++) { y |= ((x >> (k - 1 - i)) & 1) << i; } return y; } char a[500'005]; int N; void init(int n, const char s[]) { for (int i = 0; i < n; i++) { a[i] = s[i]; } N = n; } int query(int i, int k) { int ok = 1; for (int j = i; j < i + (1 << k); j++) { assert(rev(j - i, k) + i < N && j < N); ok &= a[rev(j - i, k) + i] == a[j]; } return ok; }
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