An easy problem A Time Limit: 2000/1000MS (Java/Others) Memory Limit: 65535/65535KB (Java/Others) Submit Status N个数排成一列,Q个询问,每次询问一段区间内的数的极差是多少. Input 第一行两个整数N(1≤N≤50000),Q(1≤Q≤200000).接下来一行N个整数a1 a2 a3 ....an,(1≤ai≤1000000000).接下来Q行,每行两个整数L,R(1≤L…
题意: 给你N个数,q组操作,操作有两种,查询和改变,查询就是查询当前的这个数上有多少,更改是给你a b k c,每次从a到b,每隔k的数更改一次,之间的数不更改,就相当于跳着更新. 思路:(别人的) (i - a) % k == 0 等价于 i % k == a % k 一共有10中情况 还有枚举所有情况中的小情况 (1)1 2 3 4 5 6 7 8 9..... (2)1 3 5 7 9 11 13 ...... 2 4 6 8…
Just a Hook Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 36705 Accepted Submission(s): 17920 Problem Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing…
http://acm.hdu.edu.cn/showproblem.php?pid=1698 Problem Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several consecutive metallic sticks which are of the same len…