iven a string with duplicate characters in it. Write a program to generate a list that only contains the duplicate characters. In other words, your new list should contain the characters which appear more than once.

EBK JAVA PROGRAMMING
9th Edition
ISBN:9781337671385
Author:FARRELL
Publisher:FARRELL
Chapter8: Arrays
Section: Chapter Questions
Problem 5PE
icon
Related questions
Question

 

Given a string with duplicate characters in it. Write a program to generate a list that only contains the duplicate characters. In other words, your new list should contain the characters which appear more than once.

Suggested Approach

  • Used two nested for loops.
  • The first for loop iterates from 0 to range(len(input_str)).
  • The second for loop iterates from first_loop_index + 1 to range(len(input_str)). The reason you want to start at first_loop_index + 1 in the nested inner loop is that the outer loop already checks the current character. In the nested inner loop, you want to check the remaining characters in the input string.
  • If the current character of the outer loop matches the character of the nested loop AND the character is not already IN the duplicate list, append it to the list
  • nhantran

    Sample Output 1

    List of duplicate chars: ['n', 'a']

    Sample Input 2

    pneumonoultramicroscopicsilicovolcanoconiosis

    Sample Output 2

    List of duplicate chars: ['p', 'n', 'u', 'm', 'o', 'l', 'r', 'a', 'i', 'c', 's']

    Sample Input 3

    pulchritudinous

    Sample Output 3

    List of duplicate chars: ['u', 'i']

    Sample Input 4

    orden

    Sample Output 4

    List of duplicate chars: []
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Time complexity
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
EBK JAVA PROGRAMMING
EBK JAVA PROGRAMMING
Computer Science
ISBN:
9781337671385
Author:
FARRELL
Publisher:
CENGAGE LEARNING - CONSIGNMENT