Minimum Number of Flips to Make Binary String Alternating

📝 Description

Calculate minimum flips (0→1 or 1→0) to make binary string alternating

Input Format

Binary string s

Output Format

Minimum flips

Constraints

1 ≤ s.length ≤ 10^5

🔍 Sample Input

"111000"
            

✅ Sample Output

2