Problems # Title Likes 71 Replace all spaces in a string with %20 0 72 Justify if a string consists of valid parentheses 0 73 Negate a number using addition operator 0 74 Find a pair of elements from an array whose sum equals a given number 0 75 Generate all combinations of an array 0 76 Implement a power function 0 77 Determine given a pattern and string are isomorphic 0 78 Determine if given strings are isomorphic 0 79 Find consecutive segments in an sorted array 0 80 Rearrange characters in a string so that no character repeats consecutively. 0 81 Withdraw all money from bank account 0 82 Print half pyramids using * as shown 0 83 Create a minimal height binary search tree from given sorted array of unique integers 0 84 Determine if a binary tree is balanced 0 85 Binary tree traversal 0 86 Create a binary search tree in javascript 0 87 Create a simple queue using javascript 0 88 Implement a stack using javascript 0 89 Given a singly linked list find if it is palindrome 0 90 Reverse a singly linked list 0 91 Partition a linked list around a value 0 92 Find the kth to last element of a singly linked list 0 93 Closest pair of numbers 0 94 Delete a node from a linked list in javascript 0 95 Remove duplicates from an unsorted linked list 0 96 Javascript linked list example 0 97 Find all the prime factors for the given number 0 98 Transform json to json 0 99 Check if an element exists in an array, based on that update an array 0 100 Determine character frequency in the given string 0 101 Convert the given array of elements to a string 0 102 Remove duplicates from the given array 0 103 Filter and sort the given array 0 104 Determine if a number is Odd or not 0 105 Fibonacci sum for the given number 0 Replace all spaces in a string with %20 Justify if a string consists of valid parentheses Negate a number using addition operator Find a pair of elements from an array whose sum equals a given number Generate all combinations of an array Implement a power function Determine given a pattern and string are isomorphic Determine if given strings are isomorphic Find consecutive segments in an sorted array Rearrange characters in a string so that no character repeats consecutively. Withdraw all money from bank account Print half pyramids using * as shown Create a minimal height binary search tree from given sorted array of unique integers Determine if a binary tree is balanced Binary tree traversal Create a binary search tree in javascript Create a simple queue using javascript Implement a stack using javascript Given a singly linked list find if it is palindrome Reverse a singly linked list Partition a linked list around a value Find the kth to last element of a singly linked list Closest pair of numbers Delete a node from a linked list in javascript Remove duplicates from an unsorted linked list Javascript linked list example Find all the prime factors for the given number Transform json to json Check if an element exists in an array, based on that update an array Determine character frequency in the given string Convert the given array of elements to a string Remove duplicates from the given array Filter and sort the given array Determine if a number is Odd or not Fibonacci sum for the given number 1 2 3 4