Beginner needs help with function loop do/while

Question

It seems like the value first entered in scanf() is not deleted, if the requirement is not met and so it keeps continuing in an endless loop or am I getting it wrong ?

Would appreciate some help as a beginner :D

https://code.sololearn.com/cXOVghzHz0y1/?ref=app

Answer 1

Remove scanf("%*s");

Answer 2

Jayakrishna🇮🇳 i tried but its still the same issue

Answer 3

How you are inputting? space separate or line by line?
Try scanf("%*c") ;

Instead better to use getchar();