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Common Codes

Nine-nine multiplication table​



for i in range(1, 10):
    for j in range(1, i + 1):
        print('%d*%d=%d' % (i, j, i * j), end='\t')
    print()

Determine if a number is prime​

"""
Enter a positive integer to determine if it is a prime number
"""
from math import sqrt

num = int(input('Please enter a positive integer: '))
end = int(sqrt(num))
is_prime = True
for x in range(2, end + 1):
    if num % x == 0:
        is_prime = False
        break
if is_prime and num != 1:
    print('%dis a prime number' % num)
else:
    print('%dNot a prime number' % num)

Printed triangle pattern​

*
**
***
****
*****
    *
   **
  ***
 ****
*****
    *
   ***
  *****
 *******
*********
"""
Printed triangle pattern
"""

row = int(input('Please enter the number of rows: '))
for i in range(row):
    for _ in range(i + 1):
        print('*', end='')
    print()


for i in range(row):
    for j in range(row):
        if j < row - i - 1:
            print(' ', end='')
        else:
            print('*', end='')
    print()

for i in range(row):
    for _ in range(row - i - 1):
        print(' ', end='')
    for _ in range(2 * i + 1):
        print('*', end='')
    print()

Find Daffodil Count​

"""
Find the number of all daffodils
"""

for num in range(100, 1000):
    low = num % 10
    mid = num // 10 % 10
    high = num // 100
    if num == low ** 3 + mid ** 3 + high ** 3:
        print(num)

Digital inversion​

"""
Inversion of positive integers
"""

num = int(input('num = '))
reversed_num = 0
while num > 0:
    reversed_num = reversed_num * 10 + num % 10
    num //= 10
print(reversed_num)

Hundred Chambers and Hundred Chickens​

"""
The Hundred Chambers and Hundred Chickens issue
"""

for x in range(0, 20):
    for y in range(0, 33):
        z = 100 - x - y
        if 5 * x + 3 * y + z / 3 == 100:
            print('Roosters: %d, Hens: %d, Chickens: %d' % (x, y, z))

CRAPS Gambling Games​

"""
Craps Gambling Games
We set the player to start the game with a $1000 stake
The game ends when the player loses all of their bets
"""
from random import randint

money = 1000
while money > 0:
    print('Your total assets are:', money)
    needs_go_on = False
    while True:
        debt = int(input('Please place your bets: '))
        if 0 < debt <= money:
            break
    first = randint(1, 6) + randint(1, 6)
    print('Player shakes out %d points' % first)
    if first == 7 or first == 11:
        print('Player win!')
        money += debt
    elif first == 2 or first == 3 or first == 12:
        print('Banker win!')
        money -= debt
    else:
        needs_go_on = True
    while needs_go_on:
        needs_go_on = False
        current = randint(1, 6) + randint(1, 6)
        print('Player shakes out %d points' % current)
        if current == 7:
            print('Banker win!')
            money -= debt
        elif current == first:
            print('Player win!')
            money += debt
        else:
            needs_go_on = True
print('You are broke, game over!')