Problem	knockingdominoes_ex
User	enterusername
Submission Time	2026-06-20 23:22:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

knockingdominoes_ex.cpp: In function ‘int main()’:
knockingdominoes_ex.cpp:7:10: error: found ‘:’ in nested-name-specifier, expected ‘::’
7 | cin >> N:
| ^
| ::
knockingdominoes_ex.cpp:7:9: error: ‘N’ is not a class, namespace, or enumeration
7 | cin >> N:
| ^