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Given an array nums containing n distinct numbers in the range [0, n], return the only number in the range that is missing from the array. Constraints: n == nums.length 1 <= n <= 10^4 0 <= nums[i] <= n All numbers in nums are unique. Example 1: Input: nums = [3,0,1] Output: 2 Explanation: n = 3 (the
Learn how to find the sum of digits of a number in Python using the modulo operator, with code and output.
Learn how to check whether a number is a perfect number in Python by summing its proper divisors, with code and output.
Learn how to convert a temperature from Celsius to Fahrenheit in Python using the standard formula, with code and output.
Learn how to find the largest number in a list in Python using a simple loop, with code and output.
Learn how to check whether a year is a leap year in Python using the standard leap year rule, with code and output.
Learn how to remove duplicate elements from a list in Python while preserving order, with code and output.
Learn how to count the number of vowels in a string in Python, with code and output.
Learn how to swap two numbers in Python, including Python's unique one-line swap trick, with code and output.
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