Generally invisible to the user, like you can't see it on your OS or in just a standard application
Answer:
- m = 3
- n = 20
-
- triList = []
- current = 0
- for i in range(1, n + 1):
- current = current + i
- if(current >= m and current <= n):
- triList.append(current)
-
- print(triList)
Explanation:
The solution code is written in Python 3.
Firstly, create variable m and n and set the value 3 and 20 to the variables (Line 1 -2)
Create a triangle number list (Line 4) and another variable current to hold the value of current total of triangle number (Line 5).
Create a for loop and iterate through the number between m and n (Line 6). Calculate the current total of triangle number (Line 7) and proceed to check if the current triangle number is bigger or equal to m and smaller and equal to n, add the current triangle number to triList (Line 8-9).
Print the triList (Line 11) and we shall get [3, 6, 10, 15]
Answer:
b.
Explanation:
disguising is a bit of a misleading term here. But basically, yeah, you're replacing one message by an 'encrypted' message, using mathematical rules. To reconstruct the original message, you'll need some key data and the inverse mathematical rules.
Answer:
Does not permit source code changes.
Explanation:
