Write a program to get a string from a given string where all the occurrences of its first char have been changed to except the first char itself

Question

The question demands a dynamic approach that'll consider all the reoccurring alphabets and not static approaches that focuses on only one alphabet.

Answer 1

You can use the code below:

lis = []
s=input("Enter String")
for ch in s:
    if ch in lis:
        lis.append('$')
    else:
        lis.append (ch)
print(''.join(str(i) for i in lis))