{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003eRunning a taxi station is not all that simple. Apart from the obvious demand for a centralised coordination of the cabs in order to pick up the customers calling to get a cab as soon as possible,there is also a need to schedule all the taxi rides which have been booked in advance.Given a list of all booked taxi rides for the next day, you want to minimise the number of cabs needed to carry out all of the rides.\n\u003cbr\u003eFor the sake of simplicity, we model a city as a rectangular grid. An address in the city is denoted by two integers: the street and avenue number. The time needed to get from the address a, b to c, d by taxi is |a - c| + |b - d| minutes. A cab may carry out a booked ride if it is its first ride of the day, or if it can get to the source address of the new ride from its latest,at least one minute before the new ride\u0027s scheduled departure. Note that some rides may end after midnight.\u003c/div\u003e\n给你一些出租车预定消息,包括开始时间,起点坐标以及终点坐标,如果一辆出租车在处理完当前预定后,能够提前1分钟以上到达下一个预定订单的起点,那么出租车可以接着进行下个订单,问处理完所有订单最少需要多少出租车。 "}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003eOn the first line of the input is a single positive integer N, telling the number of test scenarios to follow. Each scenario begins with a line containing an integer M, 0 \u0026lt; M \u0026lt; 500, being the number of booked taxi rides. The following M lines contain the rides. Each ride is described by a departure time on the format hh:mm (ranging from 00:00 to 23:59), two integers a b that are the coordinates of the source address and two integers c d that are the coordinates of the destination address. All coordinates are at least 0 and strictly smaller than 200. The booked rides in each scenario are sorted in order of increasing departure time.\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003eFor each scenario, output one line containing the minimum number of cabs required to carry out all the booked taxi rides.\u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e2\n2\n08:00 10 11 9 16\n08:07 9 16 10 11\n2\n08:00 10 11 9 16\n08:06 9 16 10 11\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e1\n2\u003c/pre\u003e"}}]}