Please tell the error in my code, 3rd test case is being failed

#1

here is the link to my code:- https://ide.codingblocks.com/s/654947
plz point out the problem as only one test case is being failed

#2

hi @bhumitkatyal
consider the input aaaaassssddddffaaagggssfffgzx
ur o/p - a8d4f5g4s6xz
expected o/p - a5s4d4f2a3g3s2f3gzx

refer this code -->

#3

hey, i hope it’s clear now?

#4

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