Code running successfully but no tc is passing

#1

Code is running perfectly against custom inputs, but no test cases are passing.

Code link:-https://ide.codingblocks.com/s/579264

#2

Hi Debojyoti.
so error was here. u have done k<i. actually it should be k<str.size()
image
Consider an empty string its output should be blank but ur code is trying to print something. thats why testcases were not running.
Hope ur doubt is clear

#3

Got it, sir. Thank you very much @Vaibhav277

#4

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