新改进过的7-zip算法（Power by 7-zip org），将DMG的部分算法引入ZIP，压缩比大幅提高，是RaR的2倍，ZIP的1.4倍（程序的各种说明没改变，仍是7-zip原版。）-New and improved over the 7-zip algorithm (Power by 7-zip org), part of the algorithm is introduced DMG ZIP, a substantial increase in compression ratio i

有15个数按由大到小的顺序存放在一个数组中，输入一个数，要求用折半查找法找出该数是数组中的第几个元素的值。如果该数不在数组中，则输出“无此数”。-15 by descending number of sequentially placed in an array, enter a few, asked to use binary search method to find the first number is the array of several elements of value. If