1. Find Index of 0 to be replaced with 1 to get longest continuous sequence of 1s in a binary array | Set-2
  2. Minimum Fibonacci terms with sum equal to K
  3. Largest subarray having sum greater than k
  4. Even size subtree in n-ary tree
  5. abs(), labs(), llabs() functions in C/C++
  6. Number of subarrays with given product
  7. Insert in sorted and non-overlapping interval array
  8. Minimum adjacent swaps required to Sort Binary array
  9. Schedule jobs so that each server gets equal load
  10. Equal sum array partition excluding a given element
  11. Number with even sum of digits
  12. Magical Indices in an array
  13. Print equal sum sets of array (Partition problem) | Set 1
  14. Maximum Product Subarray | Added negative product case
  15. Number of subarrays having sum exactly equal to k
  16. Split array in three equal sum subarrays
  17. Count substrings with each character occurring at most k times
  18. Log based Recovery in DBMS
  19. Minimize number of unique characters in string
  20. Longest Common Substring (Space optimized DP solution)
  21. XOR of a subarray (range of elements)
  22. Balanced expression with replacement
  23. fmax() and fmin() in C++
  24. Maximize array elements upto given number
  25. Find largest subtree sum in a tree
  26. Maximum equlibrium sum in an array
  27. Print equal sum sets of array (Partition Problem) | Set 2
  28. Find if given vertical level of binary tree is sorted or not
  29. Sum of cousins of a given node in a Binary Tree
  30. Count number of pairs in array having sum divisible by K | SET 2
  31. Print Longest substring without repeating characters
  32. Word Wrap problem ( Space optimized solution )
  33. Minimum splits in a binary string such that every substring is a power of 4 or 6.
  34. Check for balanced parenthesis without using stack
  35. Infix to Prefix conversion using two stacks
  36. Sort the biotonic doubly linked list | Set-2
  37. atol(), atoll() and atof() functions in C/C++
  38. std::stol() and std::stoll() functions in C++
  39. Find postorder traversal of BST from preorder traversal
  40. Find the smallest positive number missing from an unsorted array | Set 2
  41. Duplicates in an array in O(n) time and by using O(1) extra space | Set-3
  42. Inorder predecessor and successor for a given key in BST | Iterative Approach
  43. Check if a binary tree is sorted level-wise or not
  44. Check if two trees are mirror of each other using level order traversal
  45. Check if two nodes are cousins in a Binary Tree | Set-2
  46. Rearrange a Linked List in Zig-Zag fashion | Set-2
  47. Count number of triplets in an array having sum in the range [a, b]
  48. Number of n digit stepping numbers | Space optimized solution
  49. Check if concatenation of two strings is balanced or not
  50. Number of Counterclockwise shifts to make a string palindrome
  51. Find maximum vertical sum in binary tree
  52. Number of subarrays having sum in a given range
  53. Longest substring with count of 1s more than 0s
  54. Longest subarray having average greater than or equal to x
  55. Find k-th character of decrypted string | Set - 2
  56. Longest subsequence such that adjacent elements have at least one common digit
  57. Number of special nodes in an n-ary tree
  58. Print the last k nodes of the linked list in reverse order | Iterative Approaches
  59. Number of ways to pair people
  60. Minimum length substring with exactly K distinct characters
  61. Find the first maximum length even word from a string
  62. Minimum number of bracket reversals needed to make an expression balanced | Set - 2
  63. Longest subarray such that adjacent elements have at least one common digit | Set - 2
  64. Maximum sum of K consecutive nodes in the given Linked List
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