Sherlock and MiniMax | HackerRank Solution [Hard]
Given an integer range, for all M in that inclusive range, determine the minimum (abs(arr[i]-M) for all
1 <= i <= size[a]
Category: Competitive Programming
PacMan – DFS | HackerRank Solution [Easy]
Print all the nodes that you encounter while printing DFS tree. Then, print the distance ‘D’ between the source ‘P’ and the destination ‘.’
Reverse Shuffle Merge | HackerRank Solution [Advanced]
Given a string s such that, s ∈ merge(reverse(A), shuffle(A)) for some string A, find the lexicographically smallest A
Generate Parentheses – LeetCode Solution [Medium]
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For n = 2, output: [“(())”,”()()”]
Counting Bits O(n) Solution – LeetCode [Easy] | Brian Kernighan’s Algorithm
Given an integer n, return an array ans of length n + 1 such that for each i (0 <= i <= n), ans[i] is the number of 1's in the binary representation of i.
Longest Substring Without Repeating Characters – LeetCode Solution [Medium]
Given a string s, consisting of English letters, symbols and spaces, find the length of the longest substring without repeating characters.
Substring Diff | HackerRank (Algorithms) | Longest Common Substring
Problem In this problem, we’ll use the term “longest common substring” loosely. It refers to substrings differing at some number or fewer characters when compared index by index. For example, ‘abc’ and ‘adc’ differ in one position, ‘aab’ and ‘aba’ differ in two. Given two strings and an integer , determine the […]
Anagram | HackerRank Solution | Anagram Algorithm
Problem Two words are anagrams of one another if their letters can be rearranged to form the other word. Given a string, split it into two contiguous substrings of equal length. Determine the minimum number of characters to change to make the two substrings into anagrams of one another. Example s […]
Reinfected Solution | CodeChef Puzzle in C++
Problem We are very near to our goal now. The enemy is being weakened continuously. But alas, sensing his fall, the hacker has spread a worm into our network. It is consuming all our files at a tremendous rate and must be stopped at all costs. The only way to stop […]
Hardware Store | CodeChef Puzzle in C++
Problem Aman has a hardware store in Una. One day when he went down to the store room to fetch a box of nails. He found that the price tag had faded out. The first and the last digits of the price were not readable. Although, the number of nails in […]