repeat_end

Requirements:

• substrings and slicing

• loop with a counter variable

• string building and filtering

• returning a value

Given a string and an int n, return a string made of n repetitions of the last n characters of the string. You may assume that n is between 0 and the length of the string, inclusive.

repeat_end("Hello", 3) -> "llollollo"
repeat_end("Hello", 2) -> "lolo"
repeat_end("Hello", 1) -> "o"

This exercise was taken from codingbat.com and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.

Starter Code

def repeat_end(string: str, n: int) -> str:
    pass


result = repeat_end('Hello', 3)
print(result)

Tests

from main import repeat_end


def test_repeat_end_1():
    assert repeat_end('Hello', 3) == 'llollollo'


def test_repeat_end_2():
    assert repeat_end('Hello', 2) == 'lolo'


def test_repeat_end_3():
    assert repeat_end('Hello', 1) == 'o'


def test_repeat_end_4():
    assert repeat_end('Hello', 0) == ''


def test_repeat_end_5():
    assert repeat_end('abc', 3) == 'abcabcabc'


def test_repeat_end_6():
    assert repeat_end('1234', 2) == '3434'


def test_repeat_end_7():
    assert repeat_end('1234', 3) == '234234234'


def test_repeat_end_8():
    assert repeat_end('', 0) == ''