Because you can make it to where they cannot find or see or look or talk or anything on your profile it can cut off Comunication from the person. It can also protect your safety!
Try refreshing the page, if not restart your device check your internet etc.
Answer:
Following is attached the code that works accordingly as required. It reads in characters from standard input and outputs the number of times it sees an 'a' followed by the letter 'b'. All the description of program is given inside the code as comments.
I hope it will help you!
Explanation: