Problem	sparsetable
User	6root2i
Submission Time	2026-03-07 11:59:14
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sparsetable.cpp: In function ‘int log2_floor(long unsigned int)’:
sparsetable.cpp:11:17: error: ‘bit_width’ is not a member of ‘std’
11 | return std::bit_width(i) - 1;
| ^~~~~~~~~