Duplicate character recursion

not getting any outpput

code ka output update line 10
cout <<arr simply
but then code meh dikat h
WA output

in this you have taken char array can we take string of cpp?

yes u can take string
string is easy to understand and manipulation is simpler

what char array can do ,that can be also done by by cpp string na?

yes @guptashubham210a
…

#include<bits/stdc++.h>
using namespace std;
void replaceduplicates(string arr,int i,int n){
if(n==0){
cout<<arr;
return;
}
if(i==n){
cout<<arr;
return;
}
else if(arr[i]==arr[i+1]){
// hel*loop

	for(int k=n;k>i;k--){
		arr[k+1]=arr[k];
	}
	arr[i+1]='*';
	replaceduplicates(arr,i+2,n);
}
else{
			replaceduplicates(arr,i+1,n);

}

}
int main() {
string arr;
cin>>arr;
replaceduplicates(arr,0,arr.length()-1);
return 0;
}

pls check I have done this by my own but not gettinig last index char in output

share code in cb ide

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