Problem	doll_noi
User	FIips
Submission Time	2025-02-18 08:45:16
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

doll_noi.cpp: In member function ‘long long int DSU::qry(long long int, long long int)’:
doll_noi.cpp:63:27: error: ‘a’ was not declared in this scope
63 | if(!isSameGroup(x + 1, a)) {
| ^