
1's and 0's continuous pattern counting 
Easy 

Add binary 
Easy 

Add bits 
Easy 

Add digits is prime or not 
Easy 

Add Digits 
Easy 

All possible unique permutations 
Easy 

Anagram 
Easy 

Add 1 to the number 
Easy 

Armstrong number 
Easy 

Arrange all even number in ascending and arrange all odd number in descending and concatenate them 
Easy 

Arrange all odd number in descending and arrange all even number in asscending and concatenate them 
Easy 

Arrange by length and Alphabetic order 
Easy 

Arrange the alphabets in an ascending order 
Easy 

Array of word length 
Easy 

Automorphic number 
Easy 

Binary Multiplication 
Easy 

Binary to number converter 
Easy 

Buzz Number 
Easy 

Case Insensitive Comparison 
Easy 

Change the same digits places only to find the min and max 
Easy 

Check all are even in the list 
Easy 

Check all are factors in the list 
Easy 

Count and Say 
Medium 

Count frequency (A to J) 
Medium 

Count lowercase character in an String 
Easy 

Count of first maximum no.of zero in which index 
Easy 

Count palindrome words(Case Insensitive) 
Easy 

Count Primes 
Easy 

Count Syllables 
Easy 

Count the continuous character in an string 
Easy 

Count the k substring without changing the order 
Easy 

Count the number of consonants in an sentences 
Easy 

Count the number of digits in an sentences 
Easy 

Count the number of vowels in a sentences 
Easy 

Count the special character in an sentences 
Easy 

Count the substring of 1's 
Easy 

Count unsorted columns 
Easy 

Count uppercase character in an sentences 
Easy 

Count words in an sentences 
Easy 

Delete odd index character 
Easy 

Double Tucker 
Easy 

Disarium number 
Easy 

Duck Number 
Easy 

Even or odd 
Easy 

Evil and odious number 
Easy 

Factorial 
Easy 

Factors of a number 
Easy 

Fibonacci series 
Easy 

Filter by digit length 
Easy 

Find all pair of unique indices using concatenation of words to form a palindrome 
Easy 

Find all the 0's and 1's index 
Easy 

Find all the k substring index range 
Easy 

Find all unique combinations 
Easy 

Find any permutations is form the palindrome or not 
Easy 

Find how many smaller element in the right side 
Easy 

Find it is True or False 
Easy 

Find longest Name 
Easy 

Find Minimum 
Easy 

Find Mean Value 
Easy 

Find next prime number 
Easy 

Find previous prime number 
Easy 

Find the (0 to 9) number in the given string of the possibilities 
Easy 

Find the biggest difference pair in the list 
Easy 

Find the count of continuous 0's and 1's number 
Easy 

Find the each word length in an string and combine them 
Easy 

Find the given number of binary value is palindrome or not 
Hard 

Find the k substring index range 
Hard 

Find the K th permutation 
Hard 

Find the kth maximum and minimum 
Easy 

problem_Find the maximum values of each subarray of length k 
Easy 

Find the next Armstrong number 
Easy 

Find the number is balanced or not 
Easy 

Find the permutations 
Hard 

Find the previous Armstrong number 
Easy 

Find the Product 
Hard 

Find the words in a string 
Hard 

Finding valid phone number 
Easy 

First non repeating character 
Easy 

First word 
Easy 

Flipping bits 
Easy 

Floyd Triangle 
Easy 

Generate a countdown of numbers in a list 
Easy 

Group Anagrams 
Easy 

Happy Number 
Easy 

Harshad Number or Niven Number 
Easy 

How many decimal places 
Easy 

Indexing K sum 
Easy 

Integer Reverse 
Easy 

Kaprekar Number 
Easy 

Largest divisible of 3 
Medium 

Largest swap 
Easy 

Last word 
Easy 

Leap year or not 
Easy 

Left Rotate 
Easy 

Longest Chunked Palindrome Decomposition 
Medium 

Longest Common Prefix 
Medium 

Longest palindrome 
Medium 

Longest substring 
Medium 

Magic Number 
Easy 

Match or not1 
Easy 

Match or not2 
Easy 

Matrix addition 
Easy 

Matrix subtraction 
Easy 

Maximum sum in subArray 
Medium 

Medial number 
Easy 

Mersenne Prime number 
Easy 

Minimum removals to make sum even 
Easy 

Multiply by length 
Easy 

N th prime number 
Easy 

Neon number 
Easy 

Next element in arithmetic sequence 
Easy 

Next nearest palindrome 
Easy 

Number to binary converter 
Easy 

Once Twice Thrice Counting 
Easy 

One swap 
Easy 

Palindrome 
Easy 

Perfect number 
Easy 

Perfect unique pair finding in sorted array 
Easy 

Positive or negative number 
Easy 

Power of 2 or not.php 
Easy 

Prime number 
Easy 

Print first letter of every word 
Easy 

Print prime index characters in a string 
Easy 

Print the count of pairs in an array which difference is equal to +4 or 4 
Easy 

Print the Diagonals of a Matrix 
Easy 

Print the first unique character in a string 
Easy 

Print the missing number from 1 to 10 in an array 
Easy 

Print the missing number from 1 to 10 in an array 
Easy 

Print the product of positive number 
Easy 

Print the unique element in an array 
Easy 

Print times of character 
Easy 

Product of all odd integers 
Easy 

Product the elements with their index values 
Easy 

Pronic number 
Easy 

Red or Green 
Easy 

Remove character 
Easy 

Remove consonants in an sentences 
Easy 

Remove continuous number 
Easy 

Remove duplicate element 
Easy 

Remove numbers in an sentences 
Easy 

Remove special character in an sentences 
Easy 

Remove vowels in a sentences 
Easy 

Reverse and Capitalize 
Easy 

Reverse bits 
Easy 

Reverse even length word in a string 
Easy 

Reverse odd places words in a string 
Easy 

Reverse the equation 
Easy 

problem_Reverse words in a string 2 
Easy 

Reverse words in a string 
Easy 

Reverse words in a string 2 
Easy 

Robotics sum1 
Easy 

Robotics sum2 
Medium 

Search pattern index 
Easy 

Sentences palindrome 
Easy 

Slice and sum 
Easy 

Solve the equation 
Easy 

Solve the string Equation 
Easy 

Sort by second letter 
Easy 

Sort the words 
Easy 

Sorted insert position 
Easy 

Strong password 
Easy 

Split by k value remove duplicates without changing the order 
Easy 

Sort by second letter 
Easy 

Sign change 
Easy 

Sort the list 
Easy 

Split and sum in string 
Easy 

Split the continous number in the string and sum 
Easy 

Spy number 
Easy 

Square number series 
Easy 

String Reverse 
Easy 

String underscore problem 
Easy 

Strong number 
Easy 

Sum of max and min 
Easy 

Sum of n natural numbers 
Easy 

Sum of the digits 
Easy 

Sum of the odd numbers 
Easy 

Sum the even number in the given range 
Easy 

Sunny number 
Easy 

Swap of two numbers 
Easy 

Swap of two two numbers in a list 
Easy 

Swap of two two numbers in a list 
Easy 

Swapcase 
Easy 

Tech number 
Easy 

The given Subsequence is present in the given string or not 
Easy 

To find the mail id in the given string 
Easy 

Total number of unique characters 
Easy 

Transpose of a matrix 
Easy 

Travelling zeros 
Easy 

Trimorphic number 
Easy 

Tu pattern in Regex 
Easy 

Twin prime 
Easy 

Twisted Prime Number 
Easy 

Valid perfect square 
Easy 

Valid zip code 
Easy 