123 Only 1 and 3 are matched by the regex \d; 2 is not. Generally for a sequence of digit numbers without other characters in between, only the odd order digits are matches, and the even order …

s.isdigit() s.isnumeric() s.isdecimal() I always get as output either all True or all False for each value of s (which is a string). What's the difference between the three? Can you provide an …

Say I have a multi-digit integer in C. I want to break it up into single-digit integers. 123 would turn into 1, 2, and 3. How can I do this, especially if I don't know how many digits the integer...

First of all, [\d]{1} is equivalent to \d. As for your question, it would be better to use a zero width assertion like a lookbehind/lookahead or word boundary (\b). Otherwise you will not match …

Sep 23, 2016 · This solution solves many more "digit of a number" problems than the one using integer division and modulus. Try to find the leading (left-most) digit of the following numbers …

169 If you're just formatting a number, you can just provide the proper custom numeric format to make it a 3 digit string directly:

Nov 23, 2018 · I am trying to write a regular expresion that checks if a string starts with a number of digits (at least one), and then immediately ends with a single letter or a digit.

I have the user entering a single character into the program and it is stored as a string. I would like to know how I could check to see if the character that was entered is a letter or a digit. I ...

If I want to find the sum of the digits of a number, i.e.: Input: 932 Output: 14, which is (9 + 3 + 2) What is the fastest way of doing this? I instinctively did: sum (int (digit) for digit in str (...

Aug 27, 2011 · How to find out the units digit of a certain number (e.g. 3 power 2011). What logic should I use to find the answer to this problem?