year with most alive.py

year with most alive.py

from collections import defaultdict


demographic_data = '''
James	1954	1977
Linda	1922	1928
Robert	1912	1924
Mary	1965	1993
John	1915	1915
Patty	1946	2014
Michael	1939	2004
Barbara	1961	1991
David	1949	1962
Susan	1967	2014
William	1919	1967
Nancy	1939	2002
Richard	1944	1953
Deborah	1967	2034
Thomas	1923	1973
Sandra	1945	1965
Charles	1918	1986
Carol	1913	1921
Gary	1934	1980
Kate	1917	1929
Larry	1964	2014
Sharon	1959	1964
Ronald	1909	1936
Karen	1916	1981
Joseph	1925	1941
Donna	1905	1908
Donald	1969	1996
Brenda	1941	1967
Kenneth	1954	1961
Magie	1909	1933
Steven	1955	1967
Diane	1961	2023
Dennis	1920	1933
Pamela	1939	1976
Paul	1914	1982
Janet	1945	1971
Stephen	1900	1917
Shirley	1937	2003
George	1943	1992
Carolyn	1958	2005
'''


alive = defaultdict(int)

for data in demographic_data.splitlines():
	if len(data):
		birth, death = (int(x) for x in data.split()[1:])
				
		for year in range(birth , death):
			alive[year] += 1
######

max_year = max(alive, key=alive.get)

print "In %i, the maximum of %i people were alive." % \
  (max_year, alive[max_year])