All test case are not passed

#1

Only one test case is passed …all test case are not passed.

#2

@mayurjhode55, your logic is not correct , let’s take an example
say k= 3
and string is " abbabbaa "
according to your code the answer should be number of a + k = 4 + 3 =7
but the correct answer is 6 as the maximum substring you can have with all same character is babbaa (starting from index 2) it has size of 6

#3

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#4

Pls share your code so that I could check the error in your code…and refer to the changes as well.