Problem	boardvision
User	limmingyao21
Submission Time	2024-02-08 18:55:55
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

boardvision.cpp: In function ‘int main()’:
boardvision.cpp:8:9: error: redeclaration of ‘int n’
8 | int n; cin>>n;
| ^
boardvision.cpp:6:9: note: ‘int n’ previously declared here
6 | int n, a, b, ans = 0;
| ^