Solving twenty-four puzzles
I never bothered creating a program to solve this as I prefer to do the exercise mentally. I&#x27;ve been playing with 1440 puzzles: one for each display of a 24 hour clock. The puzzle is simple: take a displayed time and using the 4 displayed numbers and the 4 basic operations (+ - x &#x2F;), make it solve to zero. To make it more complex, it is forbidden to multiply by zero. Eg. 12:34 &gt;&gt; (1+4)-(2+3)=0. The puzzle does not solve for all hours, but it does for 12:3x and many other times