Minimum Delete Operations to make all Elements of Array Same |

Maximum Distance Between two Occurrences of Same Element in Array |

Group Multiple Occurrence of Array Elements Ordered by first Occurrence |

Smallest Subarray with k Distinct Numbers |

Find Largest d in Array such that a + b + c = d |

Minimum swaps required to bring all elements less than or equal to k together |

Find top three repeated in array |

Sorting using trivial hash function |

Find duplicates in a given array when elements are not limited to a range |

Check if Array Contains Contiguous Integers With Duplicates Allowed |

Sum of f(a[i], a[j]) over all pairs in an array of n integers |

Count of index pairs with equal elements in an array |

Find Sum of all unique sub-array sum for a given array |

Longest subarray not having more than K distinct elements |

Maximum possible difference of two subsets of an array |

Minimum operation to make all elements equal in array |

Find subarray with given sum (Handles Negative Numbers) |

Length of the largest subarray with contiguous elements |

Count number of triplets with product equal to given number |

Maximum difference between first and last indexes of an element in array |

Find any one of the multiple repeating elements in read only array |

Find elements which are present in first array and not in second |

Check for Palindrome after every character replacement Query |

Difference between highest and least frequencies in an array |

Find four elements that sum to a given value (Hashmap) |

k-th missing element in increasing sequence which is not present in a given sequence |

How to check if two given sets are disjoint? |

Check if a given array contains duplicate elements within k distance from each other |

Check if two arrays are equal or not |

Pair with given product |

Subarray with 0 sum |

Find missing elements of a range |

First element occurring k times in an array |

Print all subarrays with 0 sum |

Contains Duplicate |

Count Substrings with equal number of 0s, 1s and 2s |

Largest subarray with equal number of 0s and 1s |

Non-overlapping sum of two sets |

Find all pairs (a, b) in an array such that a % b = k |

Count subarrays with equal number of 1’s and 0’s |

Palindrome Substring Queries |

Elements to be added so that all elements of a range are present in array |

Count subarrays having total distinct elements same as original array |

Cuckoo sequence program |

Subarrays with distinct elements |

Count quadruples from four sorted arrays whose sum is equal to a given value x |

Count pairs from two linked lists whose sum is equal to a given value |

Find sum of non-repeating elements (distinct) elements in an array |

Find distinct elements common to all rows of a matrix |

Numbers with prime frequencies greater than or equal to k |

Convert an array to reduced form |

Find pairs with given sum such that elements of pair are in different rows |

Common elements in all rows of a given matrix |

Find all permuted rows of a given row in a matrix |

Given two unsorted arrays find all pairs whose sum is x |

Sort elements by frequency |

Find the first repeating element in an array of integers |

Count items common to both the lists but with different prices |

Minimum number of subsets with distinct elements |

Longest Span with same Sum in two Binary arrays |

Find Number of Employees Under every Employee |

Smallest Element Repeated Exactly K Times |

K-th Distinct Element in an Array |

Cumulative Frequency of Count of Each Element in an Unsorted Array |

Group Words With Same Set of Characters |

First non Repeating Element |

Second Most Repeated Word in a Sequence |

Print All Distinct Elements of a Given Integer Array |

Pair of Positive Negative Values in an Array |

Remove Minimum Number of Elements Such That no Common Element Exist in both Array |

Maximum occurring character in a string |

Count Pairs With Given Sum |

Most Frequent Element in an Array |

Find Pair with Greatest Product in Array |

Smallest Subarray With all Occurrences of a Most Frequent Element |

Find Top K (or Most Frequent) Numbers in a Stream |

Next Greater Frequency Element |

Change the Array into Permutation of Numbers From 1 to N |