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How do you check if a number has all same digits?
Naive Approach: Iterate through all the numbers from L to R and for each number, check if it has all its digits same. If yes, then increase the required count. Print this count at the end. Efficient Approach: The idea is based on the fact that the multiples (1 to 9) of 1, 11, 111, etc has all its digits same.
How do you find out if a number is a multiple of 3?
The pattern for multiples of 3 is based on the sum of the digits. If the sum of the digits of a number is a multiple of 3 , then the number itself is a multiple of 3 .
What is the multiple number of 3?
The first ten multiples of 3 are listed below: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30.
How do you check if a number is a multiple of 3 Java?
If the sum of the digits of a number is divisible by 3, then the number is divisible by 3. Some examples of numbers divisible by 3 are as follows. The number 85203 is divisible by 3 because the sum of its digits (8 + 5 + 2 + 0 + 3 = 18) is divisible by 3.
How to check if two numbers have the same digits?
Count digits approach: implementation improved: I am talking about second approach. You can remove one loop by merging first two loops. My code in C++, but you understand the logic. There are at least two benefits over your approach. You will iterate only for the minimum length of two int s.
How to check if a number has unique digits?
// number is unique so print it. Use set STL in order to check if a number has only unique digits. Then we can compare the size of string s formed from a given number and newly created set. For example, let us consider the number 1987, then we can convert the number into the string, After that, initialize a set with the contents of string s.
Is the frequency of all the digits in a number the same?
A number is balanced if the frequency of all the digits in it is same i.e. all the digits appear the same number of times. Examples: Input: N = 1234567890 Output: YES The frequencies of all the digits are same. i.e. every digit appears same number of times.
How to show digits of a number in C?
Please Sign up or sign in to vote. You code is wrong and need to redesign your functions completly. For digits you can use the log (10) value and for Repeated digits. Learn to use the debugger and write some test functions, where the results are obvious. Please Sign up or sign in to vote.