- Remove first node of the linked list
- Second Smallest Element in a Linked List
- Find the second last node of a linked list in single traversal
- Program to convert given Matrix to a Diagonal Matrix
- Minimum element of each row and each column in a matrix
- Product of middle row and column in an odd square matrix
- Program to convert the diagonal elements of the matrix to 0
- Find maximum element of each column in a matrix
- Print all odd nodes of Binary Search Tree
- Replace every element of the array by its previous element
- Replace every element of the array by its next element
- Delete all Non-Prime Nodes from a Singly Linked List
- Replace the middle element of matrix with sum of surrounding elements
- Rearrange all elements of array which are multiples of x in decreasing order
- Sum of first N natural numbers which are divisible by X or Y
- Find maximum among all right nodes in Binary Tree
- Digits of element wise sum of two arrays into a new array
- Program for converting hours into minutes and seconds
- Count common prime factors of two numbers
- Divide the two given numbers by their common divisors

- Find subarray with given sum | Set 1 (Nonnegative Numbers)
- Circular Matrix (Construct a matrix with numbers 1 to m*n in spiral way)
- Number of occurrences of 2 as a digit in numbers from 0 to n
- Stack | Set 3 (Reverse a string using stack)
- Convert characters of a string to opposite case
- K-th Element of Two Sorted Arrays
- Ropes Data Structure (Fast String Concatenation)
- Maximum sum in a 2 x n grid such that no two elements are adjacent
- Check whether the length of given linked list is Even or Odd
- Find uncommon characters of the two strings
- String containing first letter of every word in a given string with spaces
- Ways of transforming one string to other by removing 0 or more characters
- Largest even number possible by using one swap operation in given number
- Lexicographically smallest permutation of {1, .. n} such that no. and position do not match
- Smallest number k such that the product of digits of k is equal to n
- Longest Repeated Subsequence
- Mean of range in array
- Programming puzzle (Assign value without any control statement)
- Modify a bit at a given position
- Average numbers in array
- Even-odd turn game with two integers
- Make alphabets using the elements of an array
- Replace a character c1 with c2 and c2 with c1 in a string S
- Program to print right and left arrow patterns
- Rearrange an array such that arr[i] = i
- Aspiring Number
- Find total number of distinct years from a string
- Maximum Possible Product in Array after performing given Operations
- Count pairs with Bitwise XOR as EVEN number
- First X vowels from a string
- Greatest divisor which divides all natural number in range [L, R]