How hard is LeetCode 1344. Angle Between Hands of a Clock?

LeetCode 1344. Angle Between Hands of a Clock is rated Medium on LeetCode.

What topics does LeetCode 1344. Angle Between Hands of a Clock cover?

LeetCode 1344. Angle Between Hands of a Clock is tagged Math on LeetCode.

Angle Between Hands of a Clock — LeetCode 1344 Python Solution

MediumMath

Problem: #1344
Pattern: Math and Number Theory
Reading time: 2 min
Source: leetcode.com

The problem

Given two numbers, hour and minutes, return the smaller angle (in degrees) formed between the hour and the minute hand. Answers within 10-5 of the actual value will be accepted as correct.

Example

Input: hour = 12, minutes = 30
Output: 165

Python solution

Python

class Solution:
    def angleClock(self, hour: int, minutes: int) -> float:
        h = 30 * hour + 0.5 * minutes
        m = 6 * minutes
        diff = abs(h - m)
        return min(diff, 360 - diff)

Complexity

Measure	Complexity
Time	O(n) or O(1)
Space	O(1) auxiliary

Pattern: Math and Number Theory

Find the closed form, the invariant, or the modular identity — and skip the loop entirely. LeetCode 1344. Angle Between Hands of a Clock is filed here on both counts: the reference solution below belongs to the algorithm family this hub collects, and LeetCode tags it Math.

The math and number theory guide has the Python template for the pattern and the 485 LeetCode problems that use it.

Frequently asked questions

How hard is LeetCode 1344. Angle Between Hands of a Clock?: LeetCode 1344. Angle Between Hands of a Clock is rated Medium on LeetCode.
What topics does LeetCode 1344. Angle Between Hands of a Clock cover?: LeetCode 1344. Angle Between Hands of a Clock is tagged Math on LeetCode.