一种矩阵具有相对较少的非零(或“有趣的” )的项目。 It may be represented in much less than n × m space.它可派代表参加远远低于ñ ×米的空间。 -A matrix that has relatively few non-zero (or "interesting") entries. It may be represented in much less than n × m space.
1时间函数举例4,一个猜数游戏,判断一个人反应快慢。
2有两个磁盘文件A和B,各存放一行字母,要求把这两个文件中的信息合并(按字母顺序排列)输出到一个新文件C中。-A function of time, for example 4, a guess the number of games, judge a person reaction speed. 2 There are two disk files A and B, the storage of his letters, these two documents requested information in the merger (in alphabetical order) output to a new file in C.