✨ Add some easy one

Elementary/digits-multiplication.py

@@ -0,0 +1,19 @@
+def checkio(number: int) -> int:
+    number = str(number)
+    x = 1
+    for y in number:
+        if y != '0':
+            x *= int(y)
+    return x
+
+
+if __name__ == '__main__':
+    print('Example:')
+    print(checkio(123405))
+
+    # These "asserts" using only for self-checking and not necessary for auto-testing
+    assert checkio(123405) == 120
+    assert checkio(999) == 729
+    assert checkio(1000) == 1
+    assert checkio(1111) == 1
+    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")

Elementary/easy-unpack.py

@@ -0,0 +1,16 @@
+def easy_unpack(elements: tuple) -> tuple:
+    """
+        returns a tuple with 3 elements - first, third and second to the last
+    """
+    return elements[0], elements[2], elements[-2]
+
+
+if __name__ == '__main__':
+    print('Examples:')
+    print(easy_unpack((1, 2, 3, 4, 5, 6, 7, 9)))
+
+    # These "asserts" using only for self-checking and not necessary for auto-testing
+    assert easy_unpack((1, 2, 3, 4, 5, 6, 7, 9)) == (1, 3, 7)
+    assert easy_unpack((1, 1, 1, 1)) == (1, 1, 1)
+    assert easy_unpack((6, 3, 7)) == (6, 7, 3)
+    print('Done! Go Check!')

Elementary/index-power.py

@@ -0,0 +1,18 @@
+def index_power(array: list, n: int) -> int:
+    """
+        Find Nth power of the element with index N.
+    """
+    return (array[n] ** n) if n < len(array) else -1
+
+
+if __name__ == '__main__':
+    print('Example:')
+    print(index_power([1, 2, 3, 4], 2))
+
+    # These "asserts" using only for self-checking and not necessary for auto-testing
+    assert index_power([1, 2, 3, 4], 2) == 9, "Square"
+    assert index_power([1, 3, 10, 100], 3) == 1000000, "Cube"
+    assert index_power([0, 1], 0) == 1, "Zero power"
+    assert index_power([1, 2], 3) == -1, "IndexError"
+    assert index_power([1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 9) == 1, "IndexError"
+    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")

Elementary/multiply-intro.py

@@ -0,0 +1,12 @@
+def mult_two(a, b):
+    return a * b
+
+
+if __name__ == '__main__':
+    print("Example:")
+    print(mult_two(3, 2))
+
+    # These "asserts" are used for self-checking and not for an auto-testing
+    assert mult_two(3, 2) == 6
+    assert mult_two(1, 0) == 0
+    print("Coding complete? Click 'Check' to earn cool rewards!")