Problems # Status Problem Level Completes Likes 1 Find an extra element in two almost similar arrays Medium % 4 2 find the Arithmetic Progression sequence Beginner % 2 3 Minimum Increments to make all array elements unique Medium % 1 4 Find The Minimum time difference Medium % 1 5 Given an array, rank its elements Beginner % 2 6 Find Three Consecutive Odd Numbers in an array Beginner % 1 7 Maximum Depth of Valid Nested Parentheses in an arithmetic expression Medium % 0 8 Convert a Decimal number to its representation Beginner % 1 9 Duplicate even elements in an array Beginner % 1 10 In a number, add digits until it becomes a single digit Beginner % 1 11 Find the number of pairs with odd XOR Beginner % 1 12 Maximum CPU Load Problem in a jobs list Medium % 1 13 Add digits until the number becomes a single digit Beginner % 1 14 Check If Student is eligible for an Attendance Reward Beginner % 0 15 Maximum overlaps in a given list of time intervals Medium % 1 16 Remove Duplicates in a given Sorted Array Beginner % 1 17 Compare two version numbers of a software Medium % 0 18 Minimum number of times String A is repeated to such that B is substring of A Medium % 0 19 Diameter Of a Binary Tree Hard % 1 20 Plus one to number represented by an array Medium % 1 21 Find the Nth-term in a given arithmetic progression Beginner % 0 22 Departure and Destination Cities in a given itinerary Beginner % 1 23 Convert to Non-decreasing Array with one change Beginner % 1 24 In an array, Duplicate the zeroes without expanding it Beginner % 1 25 Maximum Consecutive Ones in a given array Beginner % 0 26 Maximum Surpasser in the given array Hard % 1 27 Random character in a given string - Java Beginner % 0 28 Count number of pairs in an array with sum = K Medium % 0 29 Count similar words in a given array Beginner % 0 30 Maximum distance from the nearest person. Medium % 0 31 Sum of all the overlapping elements Beginner % 0 32 Design a data structure for Candidate Voting Problem Medium % 0 33 Find the Number of Contiguous Parking Areas Medium % 0 34 Get specific row K in a Pascal Triangle Medium % 0 35 Design data structure for players and ranks Medium % 0 Find an extra element in two almost similar arrays find the Arithmetic Progression sequence Minimum Increments to make all array elements unique Find The Minimum time difference Given an array, rank its elements Find Three Consecutive Odd Numbers in an array Maximum Depth of Valid Nested Parentheses in an arithmetic expression Convert a Decimal number to its representation Duplicate even elements in an array In a number, add digits until it becomes a single digit Find the number of pairs with odd XOR Maximum CPU Load Problem in a jobs list Add digits until the number becomes a single digit Check If Student is eligible for an Attendance Reward Maximum overlaps in a given list of time intervals Remove Duplicates in a given Sorted Array Compare two version numbers of a software Minimum number of times String A is repeated to such that B is substring of A Diameter Of a Binary Tree Plus one to number represented by an array Find the Nth-term in a given arithmetic progression Departure and Destination Cities in a given itinerary Convert to Non-decreasing Array with one change In an array, Duplicate the zeroes without expanding it Maximum Consecutive Ones in a given array Maximum Surpasser in the given array Random character in a given string - Java Count number of pairs in an array with sum = K Count similar words in a given array Maximum distance from the nearest person. Sum of all the overlapping elements Design a data structure for Candidate Voting Problem Find the Number of Contiguous Parking Areas Get specific row K in a Pascal Triangle Design data structure for players and ranks 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16