Day of the Week — LeetCode 1185 Python Solution
EasyMath
- Problem
- #1185
- Pattern
- Math and Number Theory
- Reading time
- 2 min
- Source
- leetcode.com
The problem
Given a date, return the corresponding day of the week for that date. The input is given as three integers representing the day, month and year respectively.
Example
- Input
- day = 31, month = 8, year = 2019
- Output
- "Saturday"
Python solution
Python
class Solution:
def dayOfTheWeek(self, day: int, month: int, year: int) -> str:
return datetime.date(year, month, day).strftime('%A')Complexity
| Measure | Complexity |
|---|---|
| Time | 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 1185. Day of the Week 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.
Related problems
Frequently asked questions
- How hard is LeetCode 1185. Day of the Week?
- LeetCode 1185. Day of the Week is rated Easy on LeetCode.
- What is the time complexity of LeetCode 1185. Day of the Week?
- The Python solution on this page runs in O(1).
- What is the space complexity of LeetCode 1185. Day of the Week?
- The Python solution on this page uses O(1) auxiliary space.
- What topics does LeetCode 1185. Day of the Week cover?
- LeetCode 1185. Day of the Week is tagged Math on LeetCode.