pyJamesBondDates

# Sean Connery, who played James Bond, 007, died on 31-10-20
# The sum of the digits of that date is 007

# How many dates are there in 2020 that total 007 in this way?

# Mike Kerry - 15-April-2021

mm, dd, ctr = 1, 1, 0
while mm < 13:
    tot = 2
    x = mm * 100 + dd
    while x:
        tot += x % 10
        x //= 10
    if tot == 7:
        ctr += 1
        print(ctr, str(dd).zfill(2) + "-" + str(mm).zfill(2) + "-20")

    # This is an algorithm I developed a few years ago for getting
    # the number of days per month.    I think it's quite fun
    n = 30 + (mm + (mm > 7) & 1)
    if mm == 2:
        n = 29      # We are only dealing with 2020, which is a leap year

    dd += 1
    if dd > n:
        mm += 1
        dd = 1

# Output:-
# 1 04-01-20
# 2 13-01-20
# 3 22-01-20
# 4 31-01-20
# 5 03-02-20
# 6 12-02-20
# 7 21-02-20
# 8 02-03-20
# 9 11-03-20
# 10 20-03-20
# 11 01-04-20
# 12 10-04-20
# 13 04-10-20
# 14 13-10-20
# 15 22-10-20
# 16 31-10-20
# 17 03-11-20
# 18 12-11-20
# 19 21-11-20
# 20 30-11-20
# 21 02-12-20
# 22 11-12-20
# 23 20-12-20