Warm-up 01.04.2025

Front

What does [] + [] evaluate to in JavaScript?

Back

Front

What does this Java snippet print? Options: true, false, NullPointerException, Compilation error

Back

false

Front

What is the result of 0.1 + 0.2 in JavaScript?

Back

0.30000000000000004

Front

What is the time complexity of the following code? Options: O(n), O(n / 2), O(log n), O(n^2)

Back

O(n)

Front

What is the time and memory complexity of the following code?

Back

time - O(n), mem -O(log n)

Front

What is the time complexity of a naïve recursive Fibonacci implementation?

Back

O(2^n)

Front

What is the main mistake in this classic binary search implementation?

Back

Integer overflow on mid = (l + r) / 2

Front

Which of the following problems is provably unsolvable by a Turing machine? Determining if a given program will halt, Finding the shortest path in a weighted graph, Checking if a string is a palindrome, Solving a Sudoku puzzle

Back

Determining if a given program will halt

Front

Can this code be optimized?

Back

True

Front

Can I calculate the revenue from x to y day in O(1) time complexity using an appropriate data structure?

Back

true