Based on the infected foxes, which foxes will be infected next (taking into consideration weight, height, temperature etc.) How do you get the toy car across the obstacle with the items at hand. You can only use a select amount of items to make the car go through the obstacle. In a string array find how many times the letters change case insensitive Pack array, and container array. Find a place for the number in pack to fit inside the container array if its less than the container. if there is already a pack in that container then you have to put -1. How many X shapes can you find in a binary matrix