## Check if a number is formed by Concatenation of 1, 14 or 144 only

Given a number . The task is to check if the number is formed by concatenating the numbers 1, 14 and 144 only any number… Read More »

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- Sum of integers upto N with given unit digit
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- Possible cuts of a number such that maximum parts are divisible by 3
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- Nth number made up of odd digits only
- Largest N digit number divisible by given three numbers
- Count all palindrome which is square of a palindrome
- Sum and Product of digits in a number that divide the number
- Least Greater number with same digit sum

Given a number . The task is to check if the number is formed by concatenating the numbers 1, 14 and 144 only any number… Read More »

Given a number N(less than 10^9). The task is to print all the numbers less than N which are having a maximum of 2 unique… Read More »

Given a number N and numbers of digits in N, the task is to check whether the product of digits at even places of a… Read More »

Given a number N, the task is to find the largest number not greater than N which has all of it’s digits as odd. Examples:… Read More »

Given a number in the form of a string. The task is to find the maximum sum and product of m consecutive digits that are… Read More »

Given four integers x, y, z and n, the task is to find the largest n digit number which is divisible by x, y and… Read More »

Given a number N, the task is to find the smallest number not less than N, which has all digits odd. Examples: Input: N =… Read More »

Given a positive integer N. The task is to find sum and product of digits of the number which evenly divides the number n. Examples:… Read More »

Given an integer . The task is to check whether any of its permutations is a palindrome and divisible by 3 or not. Examples :… Read More »

Given M unique digits and a number N. The task is to find the number of N-digit numbers which can be formed from the given… Read More »

Given a number N, the task is to check if xor value of the frequency of the digits is zero or not. Examples: Input: N… Read More »

Given a number N, the task is to check whether the product of digits at even places of a number is divisible by K. If… Read More »

Given two integer ‘N’ and ‘K’, the task is to find the sum of digits of ‘N’ at it’s odd places (right to left) and… Read More »

Given an integer ‘n’, the task is to check whether the sum of digits at the odd positions (from right to left) is prime or… Read More »

Given a number print the immediate smallest number formed by re-arranging the digits of a given number. Print “Not Possible” if it is not possible… Read More »