Solution to problem 19

src/Python/Problem019.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+"""
+Created on 02 Aug 2021
+
+@author: David Doblas Jiménez
+@email: daviddoji@pm.me
+
+Solution for problem 19 of Project Euler
+https://projecteuler.net/problem=19
+"""
+
+from datetime import date
+from utils import timeit
+
+
+@timeit("Problem 19")
+def compute():
+    """
+    You are given the following information, but you may prefer to do some
+    research for yourself.
+
+    1 Jan 1900 was a Monday.
+    Thirty days has September, April, June and November.
+    All the rest have thirty-one,
+    Saving February alone,
+    Which has twenty-eight, rain or shine.
+    And on leap years, twenty-nine.
+    A leap year occurs on any year evenly divisible by 4, but not on a century
+    unless it is divisible by 400.
+
+    How many Sundays fell on the first of the month during the twentieth
+    century (1 Jan 1901 to 31 Dec 2000)?
+    """
+    sundays = 0
+    for y in range(1901, 2001):
+        for m in range (1, 13):
+            if date(y, m, 1).weekday() == 6:
+                sundays += 1
+    return sundays
+
+
+if __name__ == "__main__":
+
+    print(f"Result for Problem 19: {compute()}")