- Minimum array element changes to make its elements 1 to N
- Maximum length of a sub-array with ugly numbers
- Sum of decimal equivalent of all possible pairs of Binary representation of a Number
- Number of substrings of one string present in other
- Total character pairs from two strings, with equal number of set bits in their ascii value
- Program to find Sum of the series 1*3 + 3*5 + ....
- Sum of first n term of Series 3, 5, 9, 17, 33....
- Perl | Scope of Variables
- Perl | References
- Sum of first N terms of Quadratic Sequence 3 + 7 + 13 + ...
- Rotations of a Binary String with Odd Value
- Minimize the length of string by removing occurrence of only one character
- Minimum no. of operations required to make all Array Elements Zero
- Ratio of mth and nth terms of an A. P. with given ratio of sums
- Sum of the first N terms of the series 5,12, 23, 38....
- Sum of the first N terms of the series 2,10, 30, 68,....
- Sum of the first N terms of the series 2, 6, 12, 20, 30....
- Maximum contiguous 1 possible in a binary string after k rotations
- Sum of numbers from 1 to N which are divisible by 3 or 4
- Maximum removal from array when removal time >= waiting time
- Find the number of boxes to be removed
- Sort prime numbers of an array in descending order
- Sum of first N natural numbers which are divisible by 2 and 7
- Rearrange all elements of array which are multiples of x in increasing order
- Maximum no. of contiguous Prime Numbers in an array
- Longest subarray with elements divisible by k
- String with frequency of characters in Lucas Sequence
- Replace consonants with next immediate consonants alphabetically in a String
- Sorting array elements with set bits equal to K
- Replace all consonants with nearest vowels in a string
- XOR of all Prime numbers in an Array
- Check whether sum of digits at odd places of a number is divisible by K
- Minimum array elements to be changed to make it a Lucas Sequence
- Maximum number of contiguous array elements with same number of set bits
- Check whether product of digits at even places of a number is divisible by K
- Check whether frequency of characters in a string makes Fibonacci Sequence
- XOR of Prime Frequencies of Characters in a String
- Longest subarray with elements having equal modulo K
- Count pairs in an array such that both elements has equal set bits
- Minimum number of elements to be replaced to make the given array a Fibonacci Sequence
- Check if frequency of character in one string is a factor or multiple of frequency of same character in other string
- Sort elements of array whose modulo with K yields P
- XOR of all elements of array with set bits equal to K
- Count pairs from two arrays whose modulo operation yields K
- Largest sub-array whose all elements are perfect squares
- Count distinct pairs from two arrays having same sum of digits
- Sort perfect squares in an array at their relative positions
- Longest sub-sequence of array containing Lucas numbers
- Sum of the natural numbers (up to N) whose modulo with K yield R
- Minimum changes required to make a Catalan Sequence
- Sum of numbers from 1 to N which are in Lucas Sequence
- Check if frequency of characters are in Recaman Series
- Check if product of digits of a number at even and odd places is equal
- Character pairs from two strings with even sum
- Sum of numbers from 1 to N which are in Fibonacci Sequence
- Total distinct pairs of ugly numbers from two arrays
- Maximum number of continuous Automorphic numbers
- Minimum array elements to be changed to make Recaman's sequence
- Distinct pairs from given arrays (a[i], b[j]) such that (a[i] + b[j]) is a Fibonacci number
- Sort ugly numbers in an array at their relative positions
- Total distinct pairs from two arrays such that second number can be obtained by inverting bits of first

- Find the largest rectangle of 1's with swapping of columns allowed
- Submatrix Sum Queries
- Find k'th character of decrypted string | Set 1
- Delete an element from array (Using two traversals and one traversal)
- Decode a given pattern in two ways (Flipkart Interview Question)
- Program to print Sum Triangle for a given array
- Alternate vowel and consonant string
- Find k pairs with smallest sums in two arrays
- Minimum number of jumps to reach end | Set 2 (O(n) solution)
- Find a Fixed Point in an array with duplicates allowed
- First negative integer in every window of size k
- Maximizing Unique Pairs from two arrays
- Recursive Programs to find Minimum and Maximum elements of array
- Check whether a given array is a k sorted array or not
- Elements of an array that are not divisible by any element of another array
- Count of subarrays whose products don't have any repeating prime factor
- Find repeated character present first in a string
- Check if a number has two adjacent set bits
- Count unset bits of a number
- Ways to color a 3*N board using 4 colors
- Maximize value of (a[i]+i)*(a[j]+j) in an array
- Lexicographically smallest permutation with distinct elements using minimum replacements
- Calculate the Discriminant Value
- Find the Number which contain the digit d
- Count pairs from two sorted matrices with given sum
- Minimal moves to form a string by adding characters or appending string itself
- Lexicographically next greater string using same character set
- Check if it possible to partition in k subarrays with equal sum
- Count elements which divide all numbers in range L-R
- Puzzle | Minimum distance for Lizard
- Sum of the series 3, 20, 63, 144, ......
- Minimum product in a grid of adjacent elements
- Element which occurs consecutively in a given subarray more than or equal to K times
- Lexicographically smallest string formed by appending a character from the first K characters of a given string
- Shortest path on a Square
- Count majority element in a matrix
- All elements in an array are Same or not?
- Check if is possible to get given sum from a given set of elements
- Reallocation of elements based on Locality of Reference
- Sum of all elements repeating 'k' times in an array
- Longest chain of arr[i], arr[arr[i]], .. without repetition
- Counting frequencies of array elements
- Equally divide into two sets such that one set has maximum distinct elements
- Minimum partitions of maximum size 2 and sum limited by given value
- Number of prime pairs in an array
- Count number of primes in an array
- Find the Initial Array from given array after range sum queries
- For each element in 1st array count elements less than or equal to it in 2nd array | Set 2
- Sum of first n terms of a given series 3, 6, 11, .....
- Program to calculate Root Mean Square
- Find the sum of series 0.X + 0.XX + 0.XXX +... upto k terms
- Program to find the count of coins of each type from the given ratio
- C Program to Compute Quotient and Remainder
- Rotations of a Binary String with Odd Value
- Find bitwise OR of all possible sub-arrays
- Find the sum of n terms of the series 1,8,27,64 ....
- Find the sum of the series x(x+y) + x^2(x^2+y^2) +x^3(x^3+y^3)+ ... + x^n(x^n+y^n)
- Program to find Nth term of the series 3, 6, 18, 24, ...
- Find the sum of first N terms of the series 2×3 + 4×4 + 6×5 + 8×6 + ...
- Program to print the Sum of series -1 + 2 + 11 + 26 + 47 +.....
- Program to find Nth term of the series 3 , 5 , 21 , 51 , 95 , ...
- Program to find the sum of the series 23+ 45+ 75+..... upto N terms
- Program to solve the Alligation Problem
- Pair of prime numbers with a given sum and minimum absolute difference
- Check if a string is the typed name of the given name
- Remove even frequency characters from the string
- Count number of ordered pairs with Even and Odd Product
- Check if all the palindromic sub-strings are of odd length
- Check whether two strings can be made equal by increasing prefixes
- Find the Nth term of the series 1 + 2 + 6 + 15 + 31 + 56 + ...
- Find sum of N-th group of Natural Numbers
- Search in a sorted 2D matrix (Stored in row major order)
- Number of elements that can be seen from right side
- Remove characters that appear more than k times
- Shift all prefixes by given lengths
- Find array elements with frequencies in range [l , r]
- String matching with * (that matches with any) in any of the two strings
- Maximum points of intersection n lines
- Program to evaluate the expression (√X+1)^6 + (√X-1)^6
- Minimum steps to remove substring 010 from a binary string
- Minimum Increment / decrement to make array elements equal
- Count pairs from two arrays having sum equal to K
- Minimize the value of N by applying the given operations
- Largest number not greater than N all the digits of which are odd
- Rearrange a string in the form of integer sum followed by the minimized character
- Minimum number of 1's to be replaced in a binary array
- Print all numbers less than N with at-most 2 unique digits
- Sum of all odd length palindromic numbers within the range [L, R]
- Minimum element of each row and each column in a matrix
- Find smallest and largest element from square matrix diagonals
- Binary Search a String
- Largest palindromic prime in an array
- Print first N terms of series (0.25, 0.5, 0.75, ...) in fraction representation
- Minimize the maximum minimum difference after one removal from array
- Area of a n-sided regular polygon with given side length
- Generate number with given operation and check if it is palindrome
- Largest number less than X having at most K set bits
- Minimum number of sets with numbers less than Y
- Check if it is possible to draw a straight line with the given direction cosines
- Minimum number N such that total set bits of all numbers from 1 to N is at-least X
- Find cost price from given selling price and profit or loss percentage
- Find the non decreasing order array from given array
- Program to print Step Pattern
- Smallest perfect square divisible by all elements of an array
- Maximum length subarray with LCM equal to product
- Find nth term of the series 5 2 13 41
- Program to find sum of harmonic series
- Biggest Reuleaux Triangle within a Square which is inscribed within a Right angle Triangle
- Check whether two straight lines are orthogonal or not
- Program to calculate the area between two Concentric Circles
- Length of the longest alternating subarray
- Find a permutation of 2N numbers such that the result of given expression is exactly 2K
- Find the original matrix when largest element in a row and a column are given
- Find the final radiations of each Radiated Stations
- Highest power of a number that divides other number