Submission #924201

#TimeUsernameProblemLanguageResultExecution timeMemory
924201CamillusBrperm (RMI20_brperm)C++17
0 / 100
2 ms2396 KiB
#define debug(...) 42 #include "bits/stdc++.h" using namespace std; #ifndef LOCAL #include "brperm.h" #else void init(int n, const char s[]); int query(int i, int k); #endif string s; void init(int N, const char S[]) { s = string(S, S + N); } int swapped(int i, int k) { int a = 1; int b = 1 << (k - 1); if (bool(i & a) == bool(i & b)) { return i; } else { i ^= a; i ^= b; return i; } } int query(int i, int k) { string t(s.begin() + i, s.begin() + i + (1 << k)); debug(t); for (int j = 0; j < (1 << k); j++) { if (t[j] != t[swapped(j, k)]) { return false; } } return true; } #ifdef LOCAL char __s[(int)5e5 + 10] = {}; int main() { cin >> __s; init(strlen(__s), __s); int __x, __y; while (cin >> __x >> __y) cout << query(__x, __y) << '\n'; return 0; } #endif

Compilation message (stderr)

brperm.cpp: In function 'int query(int, int)':
brperm.cpp:1:20: warning: statement has no effect [-Wunused-value]
    1 | #define debug(...) 42
      |                    ^~
brperm.cpp:33:5: note: in expansion of macro 'debug'
   33 |     debug(t);
      |     ^~~~~
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