12435

ABC 390
All Problems

Problem 26 of 50

Easy

What to do

You have a list of five numbers that are mixed up. You need to check if you can sort them in order by swapping just two numbers that are next to each other. If you can do it, say 'Yes'; if not, say 'No'.

Key Concepts

if-statements arrays/lists swapping elements basic comparison

Examples

Input: [1, 2, 4, 3, 5]

Output: Yes

Input: [5, 3, 2, 4, 1]

Output: No

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Tips for Beginners

  • Focus on understanding the logic, not memorizing syntax
  • Use print statements to debug your code
  • Don't worry about input parsing - the function handles that for you
  • If stuck, try writing out your solution on paper first

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