Calling scanf() after another string input function creates phantom input

Question

Here\'s a small program:

#include 

int main() {
  char str[21], choice[21]; int size;
  while(1){
    printf(\"$ \");
    fgets(str, 20, stdin);
         


        

Answer 1

Use a 'char' of a specific size char choice [1]

OR

char c[1];
c = getchar();
if(c[0] == 'y' || c[1] == 'y'){
 // DO SOMETHING
}