Толя questions

Толя answers

• Fast way to check whether an odd number of bits is set?
• Sum of K elements in array that equates to N
• Intersection of two arrays with repetition
• Find the number of intersecting circles [duplicate]
• Coin change DP solution to keep track of coins
• Fastest way to check if two List<T> are equal
• Dividing a number into random unequal parts [closed]
• looking for algorithm to calculate h-index fast
• Find K nearest Points to Point P in 2-dimensional plane
• find all subsets that sum to a particular value