1. Count all pairs of an array which differ in K bits
  2. Check whether an array can be fit into another array rearranging the elements in the array
  3. Area of the biggest possible rhombus that can be inscribed in a rectangle
  4. Sum of columns of a 2-D Matrix where first element is odd
  5. Area of the circumcircle of any triangles with sides given
  6. Find Nth term of series 1, 4, 15, 72, 420...
  7. Find the Next perfect square greater than a given number
  8. Program to find the Nth term of the series 3, 20, 63, 144, 230, ……
  9. Number of divisors of a given number N which are divisible by K
  10. Program to count number of distinct Squares and Cubes upto N
  11. Sum of Factors of a Number using Prime Factorization
  12. Longest Subarray with Sum greater than Equal to Zero
  13. Minimum Players required to win the game
  14. Program to find the Hidden Number
  15. Find an element in an array such that elements form a strictly decreasing and increasing sequence
  16. Number of Co-prime pairs from 1 to N with product equals to N
  17. Sum of the first N terms of the series 5,12, 23, 38....
  18. Find the GCD of N Fibonacci Numbers with given Indices
  19. Count the number of carry operations required to add two numbers
  20. Minimum increment in the sides required to get non-negative area of a triangle
  21. Program to check if an array is palindrome or not using Recursion
  22. Find the direction from given string
  23. Number of balanced bracket subsequence of length 2 and 4
  24. Minimum changes required to make first string substring of second string
  25. Count Numbers with N digits which consists of odd number of 0's
  26. Check if it is possible to rearrange rectangles in a non-ascending order of breadths
  27. Find minimum possible digit sum after adding a number d
  28. Check if a number has digits in the given Order
  29. Check if it is possible to move from (a, 0) to (b, 0) with given jumps
  30. Check if it is possible to move from (0, 0) to (x, y) in N steps
  31. Count all the numbers less than 10^6 whose minimum prime factor is N
  32. Product of all primes in the range from L to R
  33. Check whether bitwise AND of a number with any subset of an array is zero or not
  34. Construct a frequency array of digits of the values obtained from x^1, x^2, ........, x^n
  35. Total money to be paid after traveling the given number of hours
  36. Find the number of boxes to be removed
  37. Next greater Number than N with the same quantity of digits A and B
  38. Pair with maximum sum in a Matrix
  39. Check whether the given number is Wagstaff prime or not
  40. Smallest Integer to be inserted to have equal sums
  41. Sum of lengths of all 12 edges of any rectangular parallelepiped
  42. Longest Subsequence with at least one common digit in every element
  43. Value of the series (1^3 + 2^3 + 3^3 + ... + n^3) mod 4 for a given n
  44. Thabit number
  45. Interprime
  46. Print values of 'a' in equation (a+b) <= n and a+b is divisible by x
  47. Find length of Diagonal of Hexagon
  48. Maximum number of fixed points using atmost 1 swap
  49. Sum of Fibonacci numbers at even indexes upto N terms
  50. Count unordered pairs (i,j) such that product of a[i] and a[j] is power of two
  51. Largest number divisible by 90 that can be made using 0 and 5
  52. Equation of parabola from its focus and directrix
  53. Longest subarray in which all elements are greater than K
  54. Ways of selecting men and women from a group to make a team
  55. Find middle point segment from given segment lengths
  56. Program to find the smallest element among three elements
  57. Longest subarray with elements having equal modulo K
  58. Minimum numbers (smaller than or equal to N) with sum S
  59. Sum of common divisors of two numbers A and B
  60. Sum of the elements from index L to R in an array when arr[i] = i * (-1)^i
  61. Probability of getting more value in third dice throw
  62. Find a value whose XOR with given number is maximum
  63. Number of ways to swap two bit of s1 so that bitwise OR of s1 and s2 changes
  64. Check if the array has an element which is equal to product of remaining elements
  65. Count Triplets such that one of the numbers can be written as sum of the other two
  66. Check whether the sum of prime elements of the array is prime or not
  67. Minimum sum after subtracting multiples of k from the elements of the array
  68. Split N^2 numbers into N groups of equal sum
  69. Sum of all odd natural numbers in range L and R
  70. Element equal to the sum of all the remaining elements
  71. Check whether an Array is Subarray of another Array
  72. Indexed Sequential Search
  73. Print sum of matrix and its mirror image
  74. Find if there is any subset of size K with 0 sum in an array of -1 and +1
  75. Longest rod that can be inserted within a right circular cylinder
  76. Volume of largest right circular cylinder within a Sphere
  77. Volume of biggest sphere within a right circular cylinder
  78. Count pairs with Bitwise-AND as even number
  79. Product of middle row and column in an odd square matrix
  80. Find the Nth term of the series 14, 28, 20, 40,.....
  81. Minimum range increment operations to Sort an array
  82. Minimum number of moves to make all elements equal
  83. Replace the maximum element in the array by coefficient of range
  84. Count the number of holes in an integer
  85. Largest square that can be inscribed within a hexagon which is inscribed within an equilateral triangle
  86. Program to find sum of harmonic series
  87. Biggest Reuleaux Triangle within a Square which is inscribed within a Circle
  88. Count of strings that become equal to one of the two strings after one removal
  89. Print all multiplicative primes <= N
  90. Find the final X and Y when they are Altering under given condition
  91. Remove first X rows and columns from a matrix