Problem	sorting2
User	polyda
Submission Time	2025-12-10 15:07:50
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sorting2.cpp: In function ‘void sort_questions(int, int, int*)’:
sorting2.cpp:9:26: error: ‘compare_difficulty’ was not declared in this scope
9 | sort(a.begin(),a.end(),compare_difficulty);
| ^~~~~~~~~~~~~~~~~~