def create_from_Y(self, year):
month = 7
if is_leap_year(year):
day = 2
self.fuzziness = self.fuzziness + timedelta(days=366/2.0)
else:
day = 2.5
self.fuzziness = self.fuzziness + timedelta(days=365/2.0)
self.create_from_YMD(year, month, day)
def create_from_Y(self, year):
month = 7
if is_leap_year(year):
day = 2
self.fuzziness = self.fuzziness + timedelta(days=366 / 2.0)
else:
day = 2.5
self.fuzziness = self.fuzziness + timedelta(days=365 / 2.0)
self.create_from_YMD(year, month, day)
def solve(self):
sum = 0
mod = self.firstMod
for year in xrange(self.first, self.end + 1):
if is_leap_year(year):
self.month[1] = 29
for m in self.month:
mod = (mod + m) % 7
if year >= self.start and mod == 0:
sum += 1
self.month[1] = 28
if mod % 7 == 0:
sum -= 1
return sum
def leap_year(self):
return is_leap_year(self.year)
def add_gigasecond(num):
gigasecond = 10**9
date_string = str(num)
date_split = date_string.split("-")
date_int = [int(x) for x in date_split]
year = date_int[0]
year += (gigasecond // (3600 * 24 * 365)
) #adding the birth year and how many years are in a gigasecond
month = date_int[1]
day = date_int[2]
days_in_month = {
1: 31,
2: 28,
3: 31,
4: 30,
5: 31,
6: 30,
7: 31,
8: 31,
9: 30,
10: 31,
11: 30,
12: 31
}
gigasecond_min_year = gigasecond - (
31 * (3600 * 24 * 365)) #the remainder of gigasecond minus 31 years
days_per_giga = (
gigasecond_min_year // (3600 * 24)
) - 8 #removing the 8 extra days from 8 leap years found in time span
d = 1
while d <= days_per_giga:
if not is_leap_year(
year): #not sure if there's a way to condense this part?
if day < days_in_month[month]:
day += 1
else:
if month == 12:
month, day = 1, 1
year += 1
else:
month += 1
day = 1
else:
days_in_month[2] = 29
if day < days_in_month[month]:
day += 1
else:
if month == 12:
month, day = 1, 1
year += 1
else:
month += 1
day = 1
d += 1
return date(year, month, day)
# Feb 1st 1900 was a Thursday
assert dow[31 % 7] == 'Thursday'
# Jan 1st 1901 was a Tuesday
assert dow[365 % 7] == 'Tuesday'
result = 0
for year in xrange(1901, 2001):
for i, month in enumerate(months):
if dow[index % 7] == 'Sunday':
print '{} 1st {} was on a Sunday'.format(month, year)
result += 1
# Move forward one month
# Special case for february
if i == months.index('Feb'):
index += dpm[i][1] if is_leap_year(year) else dpm[i][0]
else:
index += dpm[i]
print 'Jan 01 2001 was a {}'.format(dow[index % 7])
runtime = time.time() - t0
print 'Result = {}'.format(result)
print 'Runtime = {}'.format(runtime)
def leap_year(self):
return is_leap_year(self.year)
