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Coding Interview
Example Questions

More Coding Questions

In the previous page, we went over the interview, concepts to learn and some example questions. Here we want to power you with an even deeper list of practice questions to go out and solve:

  • How can you flip a string?
  • How can you confirm if a string reads the same forward and backward?
  • How would you identify the total number of digits in a sequence of characters?
  • Can you determine how often a character appears in a string?
  • How do you identify characters in a string that don't match?
  • How do you validate if two strings can be rearranged to match each other?
  • How can you tally the consonants and vowels in a sequence of characters?
  • In an array, how can you sum all the matching integers?
  • How would you reverse the order of elements in an array?
  • How can you identify the largest value in an array?
  • What's the approach to arranging an array of numbers in increasing order?
  • Can you showcase the Fibonacci series through recursion?
  • How do you determine the total of two numbers?
  • How do you compute the mean of a number list?
  • How do you ascertain if a number is even or not?
  • How can you pinpoint the central element of a linked list?
  • How would you remove a cycle in a linked list?
  • How can two sorted linked lists be combined?
  • What approach would you take to use binary search on a sorted array to find a specific item?
  • How would you display a binary tree in columns?
  • What approach is used in the bubble sort technique?
  • How do you implement merge sort?
  • How would you tally a specific character in a sequence of characters?
  • Which character in a string appears only once first?
  • How would you convert a character sequence to an integer like atoi() does?
  • Can you describe the bucket sort method?
  • How is counting sort executed?
  • How can you eliminate duplicates from an array without reallocating memory?
  • In Java, how would you flip an array's order without using another array?
  • How can you get rid of duplicates in an array without any external libraries?
  • Can you outline the radix sort method?
  • How do you switch the values of two variables without using another variable?
  • Can you identify if two rectangles intersect?
  • How would you design an automated dispensing machine?
  • How do you determine a missing value in an integer array from 1 to 100?
  • In a given integer array, how do you identify a repeated number?
  • If an array has several repetitions, how can you find them?
  • How can iterative quicksort be executed?
  • In an unsorted integer array, how do you determine the smallest and largest numbers?
  • How can you invert a linked list's order?
  • How do you add a new element to the center of a linked list?
  • How would you sort a linked list in Java?
  • Can you identify all number pairs in an integer array that total a given value?
  • How would you execute insertion sort?
  • In Java, how can you eliminate duplicates from a given array?
  • How do you discard repeated characters from a character sequence?
  • In a given character sequence, which character appears most frequently?
  • How do you execute in-place quicksort on an integer array?
  • How would you flip the characters in a string without allocating new memory?
  • How can you identify repeated characters in a string?
  • How can you verify if two character sequences are rearrangements of one another?
  • How can you generate all possible combinations of a string's characters?
  • How can you flip a string using recursion?
  • How do you validate if a string is symmetrical?
  • How do you find the longest sequence of unique characters in a string?
  • How can you determine the longest symmetrical substring in a given string?
  • How would you validate that a string only contains numerical characters?

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