Check if lowercase and uppercase characters are in same order
Given a string str containing only lower and uppercase alphabets. The task is to check if both lowercase characters and uppercase characters follow the same… Read More »
Category Archives: Strings
Count common subsequence in two strings
Given two string S and Q. The task is to count the number of the common subsequence in S and T. Examples: Input : S… Read More »
Minimize the length of string by removing occurrence of only one character
Given a string str containing only lowercase alphabets, the task is to minimize the length of the string after performing the following operation: Delete all… Read More »
Minimum length of string having all permutation of given string.
Given a string where, . Assume that all the characters in are unique. The task is to compute the minimum length of a string which… Read More »
Rotations of a Binary String with Odd Value
Given a binary string. We are allowed to do circular rotation of the string without changing the relative order of the bits in the string.… Read More »
Check if a large number can be divided into two or more segments of equal sum
Given a very large Number N. The task is to check if the number can be divided into two or more segments of an equal… Read More »
Minimum Cost to make two Numeric Strings Identical
Given two numeric strings, A and B. A numeric string is a string that contains only digits [‘0’-‘9’]. The task is to make both the… Read More »
Balance a string after removing extra brackets
Given a string of characters with opening and closing brackets. The task is to remove extra brackets from string and balance it. Examples: Input: str… Read More »
Minimum operation require to make first and last character same
Given a string S. You are allowed two types of operations: Remove a character from the front of the string. Remove a character from the… Read More »
Program for assigning usernames using Trie
Suppose there is a queue of n users and your task is to assign a username to them. The system works in the following way.… Read More »
Count strings with consonants and vowels at alternate position
Given a string str. The task is to find all possible number of strings that can be obtained by replacing the “$” with alphabets in… Read More »
Convert a String to Integer Array in C/C++
Given a string str containing numbers separated with “, “. The task is to convert it into an integer array and find the sum of… Read More »
Check if a String can be converted to Pangram in K changes
Given a String str containing only lowercase English alphabets and an integer K. The task is to check that whether the string can be converted… Read More »
Remove duplicates from a string in O(1) extra space
Given a string str of lowercase characters, the task is to remove duplicates and return a resultant string without modifying the order of characters in… Read More »
Maximum length of segments of 0’s and 1’s
Given a string comprising of ones and zeros. The task is to find the maximum length of the segments of string such that a number… Read More »
