Question

What does this code do?

for n in range(10, 0, -1):
print(str( n ) + " Mississippi")


What does this code do?

x = 0
while(x < 10):
print(x)
x = x + 1

Answer 1

The `for` part prints:

"10 Mississippi"

"9 Mississippi"

All the way down to

"0 Mississippi".

The `while` part prints a number a line starting from 0 all the way up to 9.

Step-by-step explanation:

`for n in range(10, 0, -1) means iterate over all the elements starting at 10, all the way down to 0 by steps of -1. Then using that `n` value, convert it to a string value, because by default it is an integer, and then use it to fill in the string "n Mississippi".

A `while` loop will continue iterating while the parenthesis-enclosed condition is true. That means, while x is smaller than 10 the code inside the while loop will execute. In this case, the variable x is declared and initialised at a value of 0. 0 is smaller than 10 so the variable is printed and then, x is given a new value which is the current value of x plus 1. Then, the while loop is executed again and again, until x equals 9. When that happens and 1 is added to its value, the condition is no longer true, because 10 is not smaller than 10, so the loop won't execute any further.