Problem	pairsums
User	Henries
Submission Time	2024-10-04 16:50:15
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

pairsums.cpp: In function ‘int main()’:
pairsums.cpp:21:29: error: ‘arr’ was not declared in this scope
21 | }while(next_permutation(arr,arr+n)); //
| ^~~