Count rr
problem:-
Given a string consisting of lower-case letters . Count the total number of substring ‘rr’ present in the given string.No substring should be counted twice.
Input
Given a string s consisting of lower-case letters.
Output
Print the total number of substring ‘rr’ present in the given string.
Constraints
1 ≤ strlen(s) ≤
Input
Given a string s consisting of lower-case letters.
Output
Print the total number of substring ‘rr’ present in the given string.
Constraints
1 ≤ strlen(s) ≤
It is very helpful