The reverse and add function starts with a number, reverses its digits and adds the reverse to the original. If the sum is not a palindrome (meaning it does not give the same number read from left to right and right to left), we repeat this procedure until it …

An archaeologist, seeking proof of the presence of extraterrestrials in the Earth's past, has stumbled upon a partially destroyed wall containing strange chains of numbers. The left-hand part of these lines of digits is always intact, but unfortunately the rig…

Children are taught to add multi-digit numbers from right to left, one digit at a time. Many find the ``carry" operation, where a 1 is carried from one digit position to the next, to be a significant challenge. Your job is to count the number of carry operatio…

Shoemaker has N jobs (orders from customers) which he must make. Shoemaker can work on only one job in each day. For each i_th job, it is known the integer T_i (1<=T_i<=1000), the …

Football is the most popular sport in the world, even through Americans insist on calling it ``soccer." A country such as five-time World Cup-winning Brazil has so many national and regional tournaments that is it very difficult to keep track. Your task is to …

Human programming contest judges are known to be very picky. To eliminate the need for them, write an automated judge script to judge submitted solution runs. Your program should take a file containing the correct output as well as the output of submitted prog…