POJ3264 比较裸的区间最值问题.用线段树或者ST表都可以.此处我们用ST表解决. ST表建表方法采用动态规划的方法, ST[I][J]表示数组从第I位到第 I+2^J-1 位的最值,用二分的思想建立动规方程. 查询方法就不用说了 非常简单. 我这个查询写的稍微有点问题, 理想的ST表查询应该是O(1)的 我写成了O(logn) #include<iostream> #include<cstdio> #include<cstdlib> #include<cst…

题目链接:http://poj.org/problem?id=3264 For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer John decides to organize a game of Ultimate Frisbee with some of the cows. To keep things simple, he wil…

题目链接: Poj 3264 Balanced Lineup 题目描述: 给出一个n个数的序列,有q个查询,每次查询区间[l, r]内的最大值与最小值的绝对值. 解题思路: 很模板的RMQ模板题,在这里总结一下RMQ:RMQ(Range Minimum/Maximum Query) 即区间最值查询,是指这样一个问题:对于长度为n的数列A,回答若干询问RMQ(A,i,j)(i,j<=n),返回数列A中下标在i,j之间的最小/大值. RMQ有三种求法:1:直接遍历查找,炒鸡暴力: 2:线段树也可以解…

传送门:http://poj.org/problem?id=3264 Balanced Lineup Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 66241   Accepted: 30833 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in…

RMQ (Range Minimum/Maximum Query)问题是指:对于长度为n的数列A,回答若干询问RMQ(A,i,j)(i,j<=n),返回数列A中下标在i,j里的最小(大)值,也就是说.RMQ问题是指求区间最值的问题. id=10244" target="_blank" style="color:blue; text-decoration:none">Balanced Lineup Time Limit: 5000MS   Mem…

Balanced Lineup Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 62103 Accepted: 29005 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer John de…

题目地址:http://poj.org/problem?id=3264 Sample Input 6 3 1 7 3 4 2 5 1 5 4 6 2 2 Sample Output 6 3 0分析:标准的模板题,可以用线段树写,但用RMQ-ST来写代码比较短.每次输出区间[L, R]内最大值和最小值的差是多少.注意一个地方,代码里面用到了log2()函数,但是我用包含<math.h>和<cmath>头文件的代码以C++的方式提交到POJ反馈是编译错误.改成g++提交才AC了.(注意…

Balanced Lineup Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 53703   Accepted: 25237 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer Joh…

Balanced Lineup Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 68466   Accepted: 31752 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer Joh…

/******************************************************* 题目: Balanced Lineup(poj 3264) 链接: http://poj.org/problem?id=3264 题意: 给个数列,查询一段区间的最大值与最小值的差 算法: RMQ ********************************************************/ #include<cstdio> #include<cstrin…