Problem	nis
User	Ok
Submission Time	2023-02-03 21:54:17
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

nis.cpp: In function ‘int main()’:
nis.cpp:73:20: error: ‘a’ was not declared in this scope
73 | sat.resize(unique(a.begin(),a.end) - a.begin());
| ^