github/euler
1
0
Fork 0
mirror of https://github.com/correl/euler.git synced 2024-11-27 11:09:54 +00:00
Code Issues Projects Releases Packages Wiki Activity

Created main() function in e019, missed it in the last commit.

Browse source 
git-svn-id: file:///srv/svn/euler@64 e5f4c3ec-3c0c-11df-b522-21efaa4426b5
This commit is contained in:
Correl Roush 2010-05-04 18:41:33 +00:00
parent 12c5dd7875
commit 672eb30f3e
1 changed files with 23 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
e019.py
View file

@ -20,30 +20,31 @@ class Day:
def is_leap_year(year):
return (year % 100 > 0 and year % 4 == 0) or (year % 400 == 0)
year = 1900
# 1/1/1900 was a Monday
first_day = Day.MONDAY
def main():
year = 1900
# 1/1/1900 was a Monday
first_day = Day.MONDAY
total = 0
while year < 2000:
year = year + 1
# Count last year's days to advance the starting weekday
days = 366 if is_leap_year(year - 1) else 365
# List the number of days in each month for this year
months = [
31,
29 if is_leap_year(year) else 28,
31, 30, 31, 30, 31, 31, 30, 31, 30, 31
]
first_day = (first_day + days % 7) % 7
sundays = 0
for m in range(len(months)):
days = sum(months[:m])
first_sunday = (7 - ((first_day + days % 7) % 7)) % 7 + 1
if first_sunday == 1:
total = total + 1
total = 0
while year < 2000:
year = year + 1
# Count last year's days to advance the starting weekday
days = 366 if is_leap_year(year - 1) else 365
# List the number of days in each month for this year
months = [
31,
29 if is_leap_year(year) else 28,
31, 30, 31, 30, 31, 31, 30, 31, 30, 31
]
first_day = (first_day + days % 7) % 7
sundays = 0
for m in range(len(months)):
days = sum(months[:m])
first_sunday = (7 - ((first_day + days % 7) % 7)) % 7 + 1
if first_sunday == 1:
total = total + 1
print 'Total months beginning on Sunday from 1/1/1901 to 12/31/2000: {0}'.format(total)
print 'Total months beginning on Sunday from 1/1/1901 to 12/31/2000: {0}'.format(total)
if __name__ == '__main__':
main()