首先簡單介紹了GPS 接收機(jī)串口通信的基本概念, 然后通過實(shí)例詳細(xì)介紹了計(jì)算機(jī)與GPS 接收機(jī)進(jìn)行
數(shù)據(jù)傳輸?shù)膬煞N方法: 一種是使用W in32 A P I 通信函數(shù)的文件讀寫方式 另一種是通過VC+ + 6. 0 提供的
M SComm 控件實(shí)現(xiàn)。
Input
The first line of the input contains a single integer T (1 <= T <= 20), the number of test cases. Then T cases follow. The first line of each case contains N, and the second line contains N integers giving the time for each people to cross the river. Each case is preceded by a blank line. There won t be more than 1000 people and nobody takes more than 100 seconds to cross.
Output
For each test case, print a line containing the total number of seconds required for all the N people to cross the river.
Sample Input
1
4
1 2 5 10
Sample Output
17
