String compression test case

#1

while submitting 2 test cases are showing wrong answr

#2

save your code on ide.codingblocks.com and share link

#3
#4

there are minor changes which you need to do in your code…first initialise your out(String) to “”(empty string) and not " "…also you need to append sum in your string ONLY IF sum>1
refer to this modified code