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### https://theweeklychallenge.org/blog/perl-weekly-challenge-285/
"""
Task 2: Making Change
Submitted by: [50]David Ferrone
__________________________________________________________________
Compute the number of ways to make change for given amount in cents. By
using the coins e.g. Penny, Nickel, Dime, Quarter and Half-dollar, in
how many distinct ways can the total value equal to the given amount?
Order of coin selection does not matter.
A penny (P) is equal to 1 cent.
A nickel (N) is equal to 5 cents.
A dime (D) is equal to 10 cents.
A quarter (Q) is equal to 25 cents.
A half-dollar (HD) is equal to 50 cents.
Example 1
Input: $amount = 9
Ouput: 2
1: 9P
2: N + 4P
Example 2
Input: $amount = 15
Ouput: 6
1: D + 5P
2: D + N
3: 3N
4: 2N + 5P
5: N + 10P
6: 15P
Example 3
Input: $amount = 100
Ouput: 292
__________________________________________________________________
Last date to submit the solution 23:59 (UK Time) Sunday 8th September
2024.
__________________________________________________________________
SO WHAT DO YOU THINK ?
"""
### solution by pokgopun@gmail.com
def mc(amount: int):
c = 0
for a50 in range(0,amount+1,50):
for a25 in range(0,amount-a50+1,25):
for a10 in range(0,amount-a50-a25+1,10):
c += (amount-a50-a25-a10)//5 + 1
return c
import unittest
class TestMc(unittest.TestCase):
def test(self):
for inpt, otpt in {
9: 2,
15: 6,
100: 292,
}.items():
self.assertEqual(mc(inpt),otpt)
unittest.main()
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