The first part contained three coding questions: 1. Check if a number is power of three. 2. Find a tipping point: The goal was to first find a "balance point" in an array (an index where the left and the right halves of the array have the same sum, index itself not included in the sums) and then find a "tipping point" (an index in the array which will "unbalance" it). This is not defined for arrays with e.g. zeros only. 3. Check if a linked list is contained in a tree. The second part was a probability simulation using monte-carlo/sampling.
