Python
Java
Algorithms
Code
Miscellaneous
100
This Python function displays text on the standard output console.
What is print()?
100
This is the signature needed for every Java application for its execution starting point.
public static void main(String[] args)
100
This data structure enforces a Last In, First Out (LIFO) access order.
What is a stack?
100
What value is assigned to myVariable in this Java script?
double myVariable = 5 / 2;
2.0 (must be exact)
100
This is the first index number of lists/arrays in nearly all modern programming languages.
What is zero?
200
This Python data type represents an ordered, mutable sequence and is declared with square brackets.
What is a list?
200
True or False? "String" is one of Java's primitive data types.
False
200
This is the search algorithm that repeatedly divides an already-sorted list in half.
What is binary search?
200
What will be output by the following Python script?
count = 0
def increment():
count = 5
increment()
print(count)
0
200
What decimal value (regular number) is represented by the binary string 1010?
Ten
300
This keyword defines the start of a custom function in Python.
What is def?
300
This keyword makes a variable immutable after initialization.
final
300
This algorithm design breaks a problem into sub problems and stores its results to avoid redundant work.
What is memoization? (Also acceptable: dynamic programming or tabulation)
300
This error occurs when a recursive function lacks a base case.
What is StackOverflowError (Java) or Recursion error (Python)?
300
This is the person recognized as the world's first computer programmer after she wrote an algorithm for the Analytical Engine.
Who is Ada Lovelace?
400
What does the following Python script evaluate to?
True + True + True
3
400
What is the output of the following Java script?
String s1 = "hello world";
String s2 = new String("hello world");
System.out.println(s1 == s2);
System.out.println(s1.equals(s2));
false
true
(must be case-sensitive)
400
This sorting algorithm typically has a time complexity of n*log(n), but has a worst-case time complexity of n^2, depending on its 'pivot.'
What is Quicksort?
400
What is the output of this Python script?
print("Hello world" * 0)
"" (empty string)
400
This is the hybrid animal used by GitHub as its mascot.
What is an Octocat?
500
What is the difference between the "==" operator and the "is" keyword in Python?
"==" checks for equal values, while "is" checks for identical memory locations.
500
What does the following Java script output?
System.out.println('A' + 'B');
131
500
What is the maximum number of comparisons that a Binary Search algorithm will make for a sorted array of 1,000,000 items?
20
500
What happens if the following Python expression is evaluated?
bool("False")
It evaluates to the boolean True.
500
This is the common term for a malicious piece of code hidden inside an otherwise legitimate-looking software package or library.
What is a Trojan Horse? (also acceptable: Supply-Chain attack)