Problem You receive a credit C at a local store and would like to buy two items. You first walk through the store and create a list L of all available items. From this list you would like to buy two items that add up to the entire value of the credit…
Problem The Latin alphabet contains 26 characters and telephones only have ten digits on the keypad. We would like to make it easier to write a message to your friend using a sequence of keypresses to indicate the desired characters. The letters are…
Problem After years of study, scientists at Google Labs have discovered an alien language transmitted from a faraway planet. The alien language is very unique in that every word consists of exactly L lowercase letters. Also, there are exactly D words…
Problem Minesweeper is a computer game that became popular in the 1980s, and is still included in some versions of the Microsoft Windows operating system. This problem has a similar idea, but it does not assume you have played Minesweeper. In this pr…
时间限制:10000ms 单点时限:1000ms 内存限制:256MB Description Consider a string set that each of them consists of {0, 1} only. All strings in the set have the same number of 0s and 1s. Write a program to find and output the K-th string according to the dictionary…
访问登记属性 android.permission.ACCESS_CHECKIN_PROPERTIES ,允许读写check-in数据库属性表的权限 ( Allows read/write access to the “properties” table in the checkin database, to change values that get uploaded) 获取错略位置 android.permission.ACCESS_COARSE_LOCATION,允许通过WiFi或移动基…
