Problem	sixandseven
User	Dolphy
Submission Time	2026-10-12 21:36:04
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sixandseven.cpp: In function ‘int main()’:
sixandseven.cpp:8:18: error: ‘len’ was not declared in this scope; did you mean ‘mblen’?
8 | for (int i=0; i<len(x)-1; i++) {
| ^~~
| mblen