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QUARTER = 0.25
DIME = 0.10
NICKEL = 0.05
PENNY = 0.01
def num_coins(total, coin):
if total < coin:
return 0
remainder = round(total % coin, 2)
return round((total - remainder) / coin)
def reduce(total, coin, number_of_coins):
return round(total - (number_of_coins * coin), 2)
def calculate(total, coins = [QUARTER, DIME, NICKEL, PENNY]):
result = [0, 0, 0, 0]
for i, coin in enumerate(coins):
count = num_coins(total, coin)
total = reduce(total, coin, count)
result[i] = count
return result
def receipt(total):
coins = calculate(total)
return f"quarters:{coins[0]}; dimes:{coins[1]}; nickels:{coins[2]}; pennies:{coins[3]}"
assert [76, 1, 1, 0] == calculate(19.15)
assert [0, 0, 0, 0] == calculate(0.00)
assert [0, 0, 0, 1] == calculate(0.01)
assert [0, 0, 1, 0] == calculate(0.05)
assert [0, 0, 1, 1] == calculate(0.06)
assert [0, 1, 0, 0] == calculate(0.10)
assert [0, 1, 0, 1] == calculate(0.11)
assert [0, 1, 1, 1] == calculate(0.16)
assert [1, 0, 0, 0] == calculate(0.25)
assert [1, 0, 0, 1] == calculate(0.26)
assert [1, 0, 1, 1] == calculate(0.31)
assert [1, 1, 1, 1] == calculate(0.41)
assert [3, 1, 1, 4] == calculate(0.94)
assert [4, 0, 0, 1] == calculate(1.01)
assert [5, 0, 1, 1] == calculate(1.31)
assert "quarters:0; dimes:1; nickels:0; pennies:0" == receipt(0.10)
assert "quarters:1; dimes:0; nickels:0; pennies:0" == receipt(0.25)
assert "quarters:1; dimes:1; nickels:1; pennies:1" == receipt(0.41)
assert "quarters:3; dimes:1; nickels:1; pennies:4" == receipt(0.94)
assert "quarters:5; dimes:0; nickels:1; pennies:1" == receipt(1.31)
assert "quarters:76; dimes:1; nickels:1; pennies:0" == receipt(19.15)
print("All tests are passing!")
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