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Python: Compute the amount of the debt in n months

Python Basic - 1: Exercise-36 with Solution

Write a Python program to compute the amount of the debt in n months. The borrowing amount is $100,000 and the loan adds 5% interest of the debt and rounds it to the nearest 1,000 above month by month.

Input:
An integer n (0 ≤ n ≤ 100)
Input number of months: 7
Amount of debt: $144000

Sample Solution:

Python Code:

def round_n(n):
    if n%1000:
        return (1+n//1000)*1000
    else:
        return n
     
def compute_debt(n):
    if n==0: return 100000
    return int(round_n(compute_debt(n-1)*1.05))

print("Input number of months:")
result = compute_debt(int(input()))
print("Amount of debt: ","$"+str(result).strip())

Sample Output:

Input number of months:
 7
Amount of debt:  $144000

Flowchart:

Flowchart: Python - Compute the amount of the debt in n months

Python Code Editor:

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Next: Write a Python program which reads an integer n and find the number of combinations of a,b,c and d (0 ≤ a,b,c,d ≤ 9) where (a + b + c + d) will be equal to n.

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Python: Tips of the Day

What is the difference between Python's list methods append and extend?

append: Appends object at the end.

x = [1, 2, 3]
x.append([4, 5])
print (x)

Output:

[1, 2, 3, [4, 5]]

extend: Extends list by appending elements from the iterable.

x = [1, 2, 3]
x.extend([4, 5])
print (x)

Output:

[1, 2, 3, 4, 5]

Ref: https://bit.ly/2AZ6ZFq