Question

write a python function to reverse a string​

Answer 1

Required Answer:-

Question:

• Write a Python function to reverse a string.

Solution:

Here comes the program.

def rev(s):

x=""

for i in range(len(s)-1,-1,-1):

x+=s[i]

return x

s=input("Enter a string: ")

s=rev(s)

print("Reversed string:",s)

Explanation:

Consider a string: Hello

Letter: H e l l o

Index: 0 1 2 3 4

Last index is equal to the length of the string - 1.

So, iterate a loop in the range i = len(s) -1 to 0 and add all the letters in the index and store the result in x variable. Return x.

Using slicing,

def rev(s):

return s[::-1]

s=input("Enter String: ")

s=rev(s)

print("Reversed String:",s)

s[::-1] displays string in reverse order.

See the attachment for output ☑.