Zigzag String from the Character on Rows
Problem Statement (Simplified): For a given string S and number of rows R, we have to arrange each character on rows in a vertical zigzag format, and then print values...
Convert Integer number to Roman Number
Concepts Used: Strings Difficulty Level: Medium Problem Statement (Simplified): For a given number between 0 and 4000, print out it's Roman Form. See original problem statement here Test Case: Input:...
Tina loves A
Concepts Used: Strings, Basic Mathematics Difficulty Level: Easy Problem Statement (Simplified): Print the maximum length of string which can be formed such that the number of a is more than...
Minimum Number of Operations to Make String Palindrome
Palindrome string is a string which is the same on reading from the front side as well as on the rear side. Example of a palindrome string is “NAMAN” as...
Find the missing number in sequence given as string
Concepts Used: String Difficulty Level: Medium Problem Statement (Simplified): Find the missing number in a given in a series as a string with no separator. The maximum length of the...
FRACTION
Concepts Used Strings Difficulty Level Hard Problem Statement (Simplified): Print the decimal output of fraction of two given numbers and enclose the repeating part in decimal places in brackets. For...
Number of Substrings Containing All Three Characters
Concepts Used Strings, Sliding Window Algorithm using two pointers Difficulty Level Medium Problem Statement (Simplified): Print the number of substrings containing all three characters i.e. a,b,c at least once in...
Minimum Window Substring
Find the minimum size of the substring of string S which contains all the character from a given string T. Print the substring with minimum length. See original problem statement...
Minus Minus is Plus
Concepts Used Strings Difficulty Level Medium Problem Statement (Simplified): Given two string S and T containing only - and +. Two - together can form a single +. If it...
Minimum Number of Steps to Make Two Strings Anagram
Concepts Used Strings, Hashing Difficulty Level Medium Problem Statement (Simplified): For given two string, Print minimum number of steps to make them anagram. See original problem statement here Test Case...
Form the Largest Number
Concepts Used Strings, Sorting Difficulty Level Hard Problem Statement (Simplified): Given an array of numbers, arrange them in such a way that they form the largest number on joining. See...
Longest Palindromic Substring
A palindrome is a sequence of characters that reads the same forwards and backward. Finding the longest palindromic substring is a common problem in computer science and has applications in...
First character
Concepts Used String, Hashing Difficulty Level Easy Problem Statement (Simplified): Find the first non-repeating character in the string, print -1 if all characters are repeating. See original problem statement here...
Distint Concat
Concepts Used String Difficulty Level Hard Problem Statement (Simplified): Find the total number of substrings which are the concatenation of the same strings, e.g.PP if formed by concatenating P twice....
Code Characters
Concepts Used String Difficulty Level Easy Problem Statement (Simplified): Find the minimum length of substring, which on replacing with any other substring of the same length gives a string containing...
Branches of Bytecode
Concepts Used String Difficulty Level Hard Problem Statement (Simplified): For given n strings and a separator s, print n/2 number of strings of equal length, by concatenating two substrings with...
Aman and Math
Concepts Used Strings Difficulty Level Hard Problem Statement (Simplified): Find the maximum answer by evaluating the given string and putting a bracket anywhere in the string. See original problem statement...