what will be the output of the following code ?

Question

s=input('enter the string  ')

k=len(s)

a=''

p=''

for i in range(k):
  
       a=a+s[i]
 
       if(s[i]==' ' or i==k-1):
 
       t=a[::-1]
 
       p=p+t
    
       a=''

print(p)

Answer 1

say if the string is 'Aman'

so the output willl be 'nama'

this is just a simple reverse of string

but why to write such a big code when just 1 line of code can give you the same answer.

use ::-1

Comments

bro, do you actually have the knowledge of coding.Maybe you are not able to get what i have written in the code. This is not simple reverse string problem. You should first carefully read the code then comment.Good Luck

Answer 2

This code is not valid. This if block:

if(s[i]==' ' or i==k-1):
t=a[::-1]
p=p+t
a=''

is not indented.

The interpreter does not see what the if statement should do, and outputs this:

    File "main.py", line 8
        t=a[::-1]
        ^
IndentationError: expected an indented block

This means that your code doesn't output anything.

However, if I change the code to:

s=input('enter the string  ')
k=len(s)
a=''
p=''
for i in range(k):
    a=a+s[i]
    if(s[i]==' ' or i==k-1):
        t=a[::-1]
        p=p+t
        a=''
print(p)

then it becomes valid.

This program outputs the input but with each word reversed in the sentence.

But, there's a twist.
For example:
if you input 'This is a sentence.',
it outputs ' siht si a.ecentnes'

Notice that there is a spacebar before the 'siht' but not before the '.ecentnes'.

This is because the program includes the spacebar when reversing, not just the word itself.

So, that's what it does.

Comments

there is indented if we fix it so output is reverse of string..

s=input('enter the string  ')

k=len(s)

a=''

p=''

for i in range(k):
  
       a=a+s[i]
 
       if(s[i]==' ' or i==k-1):
 
                 t=a[::-1]
 
                 p=p+t
    
                 a=''

                 print(p)




input=arun
output=nura

Answer 3

identation error

Answer 4

After giving indentation after if block. It prints reverse of string

Answer 5

enter the string  ramu
umar

it is giving like this

it is just printing what we give as string in reverse