2914

Author: ramtanniru

Nov-5-24.py

@@ -0,0 +1,10 @@
+class Solution:
+ def minChanges(self, s: str) -> int:
+ ans = 0
+ i,j = 0,1
+ while j<len(s):
+ if s[i]!=s[j]:
+ ans += 1
+ i+=2
+ j+=2
+ return ans