♂WhiteWin♂

摘要： Problem Statement A square matrix is a grid of NxN numbers. For example, the following is a 3x3 matrix: 4 3 5 2 4 5 0 1 9One way to represent a matrix of numbers, each of which is betwe... 阅读全文

摘要： Problem Statement When editing a single line of text, there are four keys that can be used to move the cursor: end, home, left-arrow and right-arrow. As you would expect, left-arrow and ri... 阅读全文

摘要： Problem Statement A simple line drawing program uses a blank 20 x 20 pixel canvas and a directional cursor that starts at the upper left corner pointing straight down. The upper left corne... 阅读全文