Problem: http://www.usaco.org/index.php?page=viewproblem2&cpid=856 Solution: This solution creates an additional Cow class and a CowComparator class to sort that Cow class. The comparator allows us to sort our custom objects (Cow) in the order that we want because without it, Arrays.sort() and Collections.sort() will only work on the standard library data types…

Problem: http://usaco.org/index.php?page=viewproblem2&cpid=1012 Solution: This algorithm essentially just takes in the two input strings as character arrays and iterates through both of them simultaneously. We keep use a variable (flip) to keep track of the number of substrings in the two arrays that aren’t equal to each other. Additionally, we also…

A piece of historical fiction set in the Second World War in China featuring a daring young man persevere through the hardships presented along his path. The Beginning Every family has their story, all with features that bring them together or drive them apart. My mother and father were attacked and killed…

Main Concepts: According to the Law of Conservation of Energy, the total energy of a system never changes. Thus, as Kinetic Energy increases, potential energy will decrease and vice versa. A common misconception is that, when there is maximum kinetic energy, there is no potential energy. This is not necessarily true since…

The lack of material brings about two kinds of results: one is the extreme poverty of the spirit, and the other is the extreme filling of the spirit. Wang Xinyi is a poverty stricken girl who wrote an essay thanking poverty that got her admitted into Peking University. Her essay…

A thorough comparison of their features as well as the pros and cons of them.(with facts other articles didn’t mention) The Chinese Telecommunication company Huawei, has released a foldable smartphone (Mate X) in February, almost identical to Samsung’s foldable smartphone, the Samsung Fold. Samsung Fold

“Music should strike fire from the heart of man, and bring tears from the eyes of woman”. This was stated by Ludwig Van Beethoven,undeniably a great musician who spent his life time composing music on the piano. He devoted his life to music from his first composition to his death…

Science and math, the foundation of our knowledge of the world, and the basis of our understanding of our society. These particular subjects are puzzles designed to astound our brains and add to our understanding of the big picture, our world and society as a whole. It is these puzzles…