Light & Wonder Lead Engineer Interview Questions and Answers

Create a new array with sums of all integers smaller than each element in the input array.

• Iterate through the input array and for each element, calculate the sum of all integers smaller than the current element.

• Populate the new array with these sums.

• Use a lambda expression to simplify the code.

Approach: Create a program to clear a grid by moving a ball in all 8 directions and clearing cells at the center.

• Create a grid with values in each cell

• Randomly select a starting point and direction for the ball

• Move the ball in all 8 directions, clearing cells at the center

• Reroute the ball when it reaches the edge

• Continue until all cells are cleared

An IEnumerator in C# is used to iterate over a collection of objects one at a time, allowing for more efficient memory usage and performance.

• IEnumerator is used to implement custom iterators in C# by defining a method with a yield return statement.

• Each time the iterator is called, it returns the next value in the sequence defined by the yield return statements.

• IEnumerators can be used in foreach loops to iterate over t