CBC

ABC 402
All Problems

Problem 14 of 50

Easy

What to do

Given a string containing both uppercase and lowercase letters, extract only the uppercase letters and return them as a new string in their original order. For example, 'AtCoderBeginnerContest' → 'ACBC'.

Key Concepts

strings loops conditionals (if-statements) output

Examples

Input: s = 'AtCoderBeginnerContest'

Output: ACBC

Input: s = 'PaymentRequired'

Output: PR

LeetCode Playground View on AtCoder

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

Python Editor

Loading Python...