- Perl | lt operator
- Perl | rename() Function
- jQuery | :last Selector
- HTML | DOM Storage key() Method
- HTML | DOM Storage removeItem() Method
- jQuery | outerHeight() Method
- jQuery | length property
- jQuery | slideDown() Method
- jQuery | slideToggle() Method
- Perl | delete() Function
- Perl | defined() Function
- jQuery | toggle() Method
- Perl | each() Function
- Perl | index() Function
- Perl | int() function
- Perl | join() Function
- Perl | keys() Function
- Perl | last in loop
- Perl | lc() Function for Lower Case Conversion
- Perl | lcfirst() Function
- Perl | length() Function
- jQuery | :even Selector
- Perl | oct() Function
- Perl | log() Function
- Perl | push() Function
- jQuery | :first Selector
- Perl | rand() Function
- jQuery | :first-child Selector
- Perl | prototype() Function
- Perl | reset() Function
- PHP | parse_url() Function
- PHP | json_decode() Function
- Perl matching operator
- Perl | quotemeta() Function
- Perl | qq operator
- Perl | Array pop() Function
- Perl | print operator
- Perl | redo operator
- Perl | return() Function
- Perl | my keyword
- Perl | reverse() Function
- Perl | rindex() Function
- Perl | ord() Function
- Perl | q operator
- Perl | substitution Operator
- Perl | scalar keyword
- Perl | shift() Function
- Perl | sleep() Function
- Perl | sort() Function
- Perl | sprintf() Function
- Perl | sqrt() Function
- Perl | next operator
- Perl | uc() Function
- Perl | unshift() Function
- Perl | values() Function
- Perl | cmp Operator
- Perl | gt operator
- Perl | le operator
- Perl | ge operator
- Perl | eq operator
- Perl | ne operator
- Perl | getc Function
- Perl | tell() Function
- Perl | wantarray() Function
- Perl | glob() Function
- PHP | http_build_query() Function
- Perl | Encapsulation in OOPs
- Perl | DBI(Database Independent Interface) Module Set - 1

- How to swap two numbers without using a temporary variable?
- Find the node with minimum value in a Binary Search Tree
- Segregate Even and Odd numbers
- Find Union and Intersection of two unsorted arrays
- Evaluation order of operands
- Sorted order printing of a given array that represents a BST
- Find the repeating and the missing | Added 3 new methods
- Find the minimum distance between two numbers
- Smallest of three integers without comparison operators
- Matrix Chain Multiplication | DP-8
- Print all sequences of given length
- Pascal's Triangle
- Count all possible paths from top left to bottom right of a mXn matrix
- Remove minimum elements from either side such that 2*min becomes more than max
- Mobile Numeric Keypad Problem
- Longest Even Length Substring such that Sum of First and Second Half is same
- Rearrange an array such that 'arr[j]' becomes 'i' if 'arr[i]' is 'j' | Set 1
- Maximum product of a triplet (subsequnece of size 3) in array
- Find even occurring elements in an array of limited range
- Count number of substrings with exactly k distinct characters
- Rearrange positive and negative numbers with constant extra space
- Dynamic Programming | High-effort vs. Low-effort Tasks Problem
- Program for Armstrong Numbers
- Binary Indexed Tree : Range Updates and Point Queries
- Interpolation Search
- Remove minimum number of characters so that two strings become anagram
- Find a partition point in array
- Divide array into two sub-arrays such that their averages are equal
- Minimum operations required to remove an array
- Maximize sum of N X N upper left sub-matrix from given 2N X 2N matrix
- Count passing car pairs
- Make n using 1s and 2s with minimum number of terms multiple of k
- Count substrings with same first and last characters
- Count pairs with sum as a prime number and less than n
- Find maximum (or minimum) in Binary Tree
- Program to add two polynomials
- Replace all ‘0’ with ‘5’ in an input Integer
- Triangular Numbers
- Reverse an array without using subtract sign ‘-‘ anywhere in the code
- Number of times the largest perfect square number can be subtracted from N
- Slope of the line parallel to the line with the given slope
- HTML | DOM Style backgroundClip Property
- Painting Fence Algorithm
- Replace every element of the array with BitWise XOR of all other
- Count number of strings (made of R, G and B) using given combination
- Divide the two given numbers by their common divisors
- Print the string by ignoring alternate occurrences of any character
- Minimum insertions to form a palindrome with permutations allowed
- Number of substrings divisible by 4 in a string of integers
- Master Theorem For Subtract and Conquer Recurrences
- Josephus Problem Using Bit Magic
- Print triplets with sum less than or equal to k
- Smallest element in an array that is repeated exactly 'k' times.
- Program to Count numbers on fingers
- HTML | DOM Textarea autofocus Property
- Maximise the size of consecutive element subsets in an array
- Binary array after M range toggle operations
- Smallest index such that there are no 0 or 1 to its right
- Program to count digits in an integer (4 Different Methods)
- Print N-bit binary numbers having more 1’s than 0’s in all prefixes
- Replace two substrings (of a string) with each other
- Double Base Palindrome
- Program to print hollow rectangle or square star patterns
- Minimum cost to make two strings identical by deleting the digits
- Concatenated string with uncommon characters in Python
- Program to find the number of region in Planar Graph
- Program for triangular patterns of alphabets
- Program to print non square numbers
- Construct sum-array with sum of elements in given range
- Converting one string to other using append and delete last operations
- Calculate area of pentagon with given diagonal
- Sort 1 to N by swapping adjacent elements
- Dyck Words of given length
- Sum of pairwise products
- Invert actual bits of a number
- n-th number whose sum of digits is ten
- Hypercube Graph
- Largest of two distinct numbers without using any conditional statements or operators
- Program for scalar multiplication of a matrix
- Program to display all alphabets from A to Z in uppercase and lowercase both
- Prefixes with more a than b
- Check for balanced parentheses in an expression | O(1) space
- Lexicographically Kth smallest way to reach given coordinate from origin
- Largest gap in an array
- Duplicates in an array in O(n) time and by using O(1) extra space | Set-3
- Format specifiers in C
- Modify string by removing vowels in between two consonants
- Find the sum of non-prime elements in the given array
- Array Manipulation and Sum
- Sort 3 numbers
- Maximum bishops that can be placed on N*N chessboard
- Range product queries in an array
- Smallest divisor D of N such that gcd(D, M) is greater than 1
- Hyperfactorial of a number
- First strictly greater element in a sorted array in Java
- First strictly smaller element in a sorted array in Java
- Difference between fundamental data types and derived data types
- Recursive program to print triangular patterns
- Minimum number greater than the maximum of array which cannot be formed using the numbers in the array
- Check whether a given Number is Power-Isolated or not
- Length of largest sub-array having primes strictly greater than non-primes
- Program to solve the Alligation Problem
- Program to print Hut Star pattern
- Product of all prime numbers in an Array
- Minimum number of nodes in an AVL Tree with given height
- Find number of cavities in a matrix
- Find time taken for signal to reach all positions in a string
- Ways of selecting men and women from a group to make a team
- Find single Movement in a Matrix
- Program to convert the diagonal elements of the matrix to 0
- Largest number less than N with digit sum greater than the digit sum of N
- Construct a binary string following the given constraints
- Check if a number is Triperfect Number
- Largest right circular cylinder within a frustum
- Minimum and Maximum number of pairs in m teams of n people
- Move all Uppercase char to the end of string
- Maximum sum of all elements of array after performing given operations
- Check if the given decimal number has 0 and 1 digits only
- Largest Divisor of a Number not divisible by a perfect square
- Sum of the multiples of two numbers below N
- Largest palindromic number in an array
- Find the nth term of the series 0, 8, 64, 216, 512, . . .
- Sum of integers upto N with given unit digit
- Leftmost and rightmost indices of the maximum and the minimum element of an array
- Minimum value that divides one number and divisible by other
- Minimum in an array which is first decreasing then increasing
- Count of numbers which can be made power of 2 by given operation
- Biggest Reuleaux Triangle within A Square
- Largest hexagon that can be inscribed within an equilateral triangle
- Count Subarrays with Consecutive elements differing by 1
- Count numbers in a range that are divisible by all array elements
- Diagonal of a Regular Heptagon
- Print numbers in matrix diagonal pattern
- Remove exactly one element from the array such that max - min is minimum
- Count number of pairs (i, j) such that arr[i] * arr[j] > arr[i] + arr[j]
- Minimum prime number operations to convert A to B
- Check if it is possible to draw a straight line with the given direction cosines
- Largest square that can be inscribed within a hexagon which is inscribed within an equilateral triangle
- Print n 0s and m 1s such that no two 0s and no three 1s are together
- Biggest Reuleaux Triangle within a Square which is inscribed within a Right angle Triangle
- Largest right circular cylinder that can be inscribed within a cone which is in turn inscribed within a cube
- Count distinct elements in an array
- Check whether the given character is in upper case, lower case or non alphabetic character
- Rectangle with minimum possible difference between the length and the width
- Biggest Reuleaux Triangle inscirbed within a square inscribed in a semicircle
- Find safe cells in a matrix
- Count of values of x <= n for which (n XOR x) = (n - x)
- Find array using different XORs of elements in groups of size 4
- Count of sub-strings that are divisible by K
- Count of pairs of (i, j) such that ((n % i) % j) % n is maximized
- Largest sphere that can be inscribed in a right circular cylinder inscribed in a frustum
- Count all Prime Length Palindromic Substrings
- Maximum GCD from Given Product of Unknowns
- Decrypt a string encrypted by repeating i-th character i times
- HTML | DOM Time Object
- Smallest integer greater than n such that it consists of digit m exactly k times
- Check if a binary string contains consecutive same or not
- Cost of painting n * m grid
- Minimum number of operations to move all uppercase characters before all lower case characters
- Minimum value to be added to X such that it is at least Y percent of N
- Choose points from two ranges such that no point lies in both the ranges
- Maximize big when both big and small can be exchanged
- Count the number of rhombi possible inside a rectangle of given size
- Maximize the sum of products of the degrees between any two vertices of the tree
- Program to calculate the area between two Concentric Circles
- Generate a string consisting of characters 'a' and 'b' that satisfy the given conditions
- Sum of bitwise AND of all subarrays
- Source to destination in 2-D path with fixed sized jumps
- Find index i such that prefix of S1 and suffix of S2 till i form a palindrome when concatenated
- Minimum index i such that all the elements from index i to given index are equal
- Find the longest Fibonacci-like subarray of the given array
- Maximum positive integer divisible by C and is in the range [A, B]
- Minimum number of moves to make a binary array K periodic
- Iterating over all possible combinations in an Array using Bits
- Ways to form an array having integers in given range such that total sum is divisible by 2
- Minimum removals to make array sum odd
- Check whether the number can be made perfect square after adding 1
- Number of Hamiltonian cycle
- Maximum Bitwise AND pair from given range
- Check if an array of 1s and 2s can be divided into 2 parts with equal sum
- Count array elements that divide the sum of all other elements
- Number of trailing zeroes in base 16 representation of N!
- Count paths with distance equal to Manhattan distance
- Find the number of solutions to the given equation
- Minimum LCM and GCD possible among all possible sub-arrays
- Find the Nth term of the series where each term f[i] = f[i - 1] - f[i - 2]
- Find N % 4 (Remainder with 4) for a large value of N
- Minimum possible sum of array elements after performing the given operation
- XOR of XORs of all sub-matrices
- Minimum elements to be removed such that sum of adjacent elements is always even
- Find Nth positive number whose digital root is X
- Longest Sub-array with maximum average value
- Ways to Remove Edges from a Complete Graph to make Odd Edges
- Count of all even numbers in the range [L, R] whose sum of digits is divisible by 3
- Sum of numbers from 1 to N which are in Lucas Sequence
- Replace every consonant sequence with its length in the given string
- Minimum cost to make two strings same
- Find smallest number K such that K % p = 0 and q % K = 0
- Maximum length of balanced string after swapping and removal of characters
- Missing even and odd elements from the given arrays
- Sum of numbers from 1 to N which are in Fibonacci Sequence
- Deletions of "01" or "10" in binary string to make it free from "01" or "10"
- Check if a number can be represented as sum of non zero powers of 2
- Find kth smallest number in range [1, n] when all the odd numbers are deleted
- Find Nth term of the series 1, 5, 32, 288 ...
- Count numbers which are divisible by all the numbers from 2 to 10
- Sum of the series (1*2) + (2*3) + (3*4) + ...... upto n terms
- Maximum Primes whose sum is equal to given N
- Sum of the series 1^1 + 2^2 + 3^3 + ..... + n^n using recursion
- Numbers that are not divisible by any number in the range [2, 10]
- Count of a, b & c after n seconds for given reproduction rate
- Find the K-th minimum element from an array concatenated M times
- Smallest integer > 1 which divides every element of the given array
- Series summation if T(n) is given and n is very large
- Count of all N digit numbers such that num + Rev(num) = 10^N - 1
- Find the total guests that are present at the party
- Find A and B from list of divisors
- Check if the given array is mirror-inverse
- Count of numbers from range [L, R] whose sum of digits is Y
- Check if a Queen can attack a given cell on chessboard
- Addition of two numbers without propagating Carry
- Number of steps required to reach point (x,y) from (0,0) using zig-zag way
- Position of the K-th set bit in a number
- Find the number of good permutations
- Find a distinct pair (x, y) in given range such that x divides y
- Largest number N which can be reduced to 0 in K steps
- Find the smallest number X such that X! contains at least Y trailing zeros.
- Minimum cost to reach end of array array when a maximum jump of K index is allowed
- Count pairs with bitwise OR less than Max
- Largest sphere that can be inscribed within a cube which is in turn inscribed within a right circular cone
- Programs for printing pyramid patterns using recursion
- Maximize the median of the given array after adding K elements to the same array
- Find amount of water wasted after filling the tank
- Sum of Fibonacci Numbers in a range
- Minimize the cost to split a number
- Minimum number of given operation required to convert n to m
- Maximum consecutive one’s (or zeros) in a binary circular array
- Maximum number of continuous Automorphic numbers
- Given count of digits 1, 2, 3, 4, find the maximum sum possible
- Find the good permutation of first N natural numbers
- Sum of degrees of all nodes of a undirected graph
- Maximum number of candies that can be bought
- Times required by Simple interest for the Principal to become Y times itself
- Replace the odd positioned elements with their cubes and even positioned elements with their squares
- Count the number of non-increasing subarrays
- Count number of ways to reach a given score in a Matrix
- Count of sub-strings that do not contain all the characters from the set {'a', 'b', 'c'} at the same time
- Maximum points covered after removing an Interval
- Find the original matrix when largest element in a row and a column are given
- XOR of all the elements in the given range [L, R]
- Check if factorial of N is divisible by the sum of squares of first N natural numbers
- Find the number of integers from 1 to n which contains digits 0's and 1's only
- Maximum element in a sorted and rotated array
- Find the minimum number of steps to reach M from N
- Check if a given number divides the sum of the factorials of its digits
- Sum of the series Kn + ( K(n-1) * (K-1)1 ) + ( K(n-2) * (K-1)2 ) + ....... (K-1)n
- Number of ways for playing first move optimally in a NIM game
- Area of the biggest ellipse inscribed within a rectangle
- Remove elements to make array sorted
- Count all prefixes of the given binary array which are divisible by x
- Count consecutive pairs of same elements
- Find (1^n + 2^n + 3^n + 4^n) mod 5 | Set 2
- Find the number of elements greater than k in a sorted array
- Find maximum sum taking every Kth element in the array
- Find missing element in a sorted array of consecutive numbers
- Count the number of currency notes needed
- Divide array into two parts with equal sum according to the given constraints
- Largest ellipse that can be inscribed within a rectangle which in turn is inscribed within a semicircle
- Find the lexicographically smallest string which satisfies the given condition
- Check if product of first N natural numbers is divisible by their sum
- Find HCF of two numbers without using recursion or Euclidean algorithm
- Maximum sum of cocktail glass in a 2D matrix
- Number of triangles possible with given lengths of sticks which are powers of 2
- Count of elements whose absolute difference with the sum of all the other elements is greater than k
- Find minimum positive integer x such that a(x^2) + b(x) + c >= k
- Count of sub-strings that do not consist of the given character
- Maximize the maximum subarray sum after removing atmost one element
- Dudeney Numbers
- Sum of elements in 1st array such that number of elements less than or equal to them in 2nd array is maximum
- Find the kth element in the series generated by the given N ranges
- Count of sub-strings of length n possible from the given string
- Find out the minimum number of coins required to pay total amount
- Longest substring of only 4's from the first N characters of the infinite string
- Equation of straight line passing through a given point which bisects it into two equal line segments
- JavaScript | RegExp \n Metacharacter
- Distance between two parallel lines
- Minimum number of elements to be removed such that the sum of the remaining elements is equal to k
- Check if the frequency of any character is more than half the length of the string
- Highest power of 2 that divides a number represented in binary
- Maximum length palindrome that can be created with characters in range L and R
- Number of ways to arrange K different objects taking N objects at a time
- Game Theory in Balanced Ternary Numeral System | (Moving 3k steps at a time)
- Minimum number of cubes whose sum equals to given number N
- Count number of subsets whose median is also present in the same subset
- Ratio of the distance between the centers of the circles and the point of intersection of two transverse common tangents to the circles
- Count squares with odd side length in Chessboard
- Check whether two strings contain same characters in same order
- Print all the sub diagonal elements of the given square matrix
- Check whether str1 can be converted to str2 with the given operations
- Find a partition point in array to maximize its xor sum
- Find the count of M character words which have at least one character repeated
- Maximum length sub-array which satisfies the given conditions