How do I write a program to reverse a sequence positive integers.

Question

0.00/5 (No votes)

See more:

I want to write a program input a sequence positive integers and output the sequence in reverse order.

What I have tried:

I have tried this code:

def reverse(string):
    string = list(string)
    string.reverse()
    return "".join(string)
string = input()
print(reverse(string))

But the result doesn't as I expected. I want when I input "2 43 61 9", it will output "9 61 43 2", but the code output "9 16 34 2" instead.
Please help me to solve this problem.

Posted 2-Mar-23 1:38am

28. Nguyễn Ngọc Thùy Trâm

Updated 2-Mar-23 2:03am

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Answer 1 · 2023-03-02T02:03:00

Solution 2

You might split the string, reverse the obtained list and then join the list adding blanks. That is

Python

def reverse(string):
    string = string.split()
    string.reverse()
    return " ".join(string)

string = input()
print(reverse(string))

Posted 2-Mar-23 2:03am

CPallini

OriginalGriff · Answer 2 · 2023-03-02T01:59:00

Solution 1

You will need to break the string into separate numbers: "2", "43", "61", and "9" and then print those in reverse order. Hint: Python String split() Method[^]

If you are having problems getting started at all, then this may help: How to Write Code to Solve a Problem, A Beginner's Guide[^]

Posted 2-Mar-23 1:59am

OriginalGriff

Updated 2-Mar-23 2:01am

v2