Borderou de evaluare (job #853413)

Eroare de compilare: main.cpp: In member function 'int FenwickTree::binary_search(int)': main.cpp:31:39: error: 'countl_zero' is not a member of 'std' 31 | int max_p2 = (1 << (31 - std::countl_zero((unsigned)n))); | ^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 92 | freopen("arbperm2.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:93:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 93 | freopen("arbperm2.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~