Number-Digits Archives

Total Numbers With no Repeated Digits in a Range

You are given a range of numbers (start, end). The given task says to find out the total numbers of numbers with no repeated digits in a range. Example Input: 10 50 Output: 37 Explanation: 10 has no repeated digit. 11 has a repeated digit. 12 has no repeated digit. …

Special Number

What can be so special about a number? Let us find out. We have with us an array of N numbers. A number can be special if it is divisible by one or more numbers except for the number itself. Firstly let us clear this with a few examples before …