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WA的原因竟然因为....竟然因为...把TRUE拼成TURE了...英死早，囧...题目：Cube paintingCube paintingWe have a machine for painting cubes. It is supplied with three different colors: blue, red and green. Each face of the cube gets one of these colors. The cube's faces are numbered as in Figure 1.Figure 1.Since a cube has 6 阅读全文
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开学了，从现在开始吧～题目： Problem A.Ant on a Chessboard Background One day, an ant calledAlice came to an M*M chessboard. She wanted to go around all the grids. So shebegan to walk along the chessboard according to this way: (you can assume thather speed is one grid per second) At the first second,Alice was... 阅读全文