二维RMQ - 相关文章

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hdu2888 二维RMQ

Check Corners Time Limit: 2000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2513 Accepted Submission(s): 904 Problem Description Paul draw a big m*n matrix A last month, whose entries Ai,j are all intege…

hduacm 2888 ----二维rmq

http://acm.hdu.edu.cn/showproblem.php?pid=2888 模板题直接用二维rmq 读入数据时比较坑爹 cin 会超时 #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ; ][]; void rmq_init(int n, int m) { ; i <= n; i++) { ; j <= m; j++) dp[…

hdu 2888 二维RMQ模板题

Check Corners Time Limit: 2000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2377 Accepted Submission(s): 859 Problem Description Paul draw a big m*n matrix A last month, whose entries Ai,j are all intege…

HDU 2888 Check Corners (模板题)【二维RMQ】

<题目链接> <转载于 >>> > 题目大意: 给出一个N*M的矩阵,并且给出该矩阵上每个点对应的值,再进行Q次询问,每次询问给出代询问子矩阵的左上顶点和右下顶点,问该子矩阵的最大值是多少,并且判断该最值是否在该子矩阵的四个顶角上. 解题分析: 很明显求二维区间内的最值,需要用到二维RMQ,其中dp[i][j][k][l]表示左上角为(i,j),右下角为(i + 2 ^ k - 1, j + 2 ^ l - 1)这个矩形内的最值.注意这个四维数组不要开得太大,否则…

HDU2888 Check Corners（二维RMQ）

有一个矩阵,每次查询一个子矩阵,判断这个子矩阵的最大值是不是在这个子矩阵的四个角上裸的二维RMQ #pragma comment(linker, "/STACK:1677721600") #include <map> #include <set> #include <stack> #include <queue> #include <cmath> #include <ctime> #include <vec…

POJ 2019 Cornfields [二维RMQ]

题目传送门 Cornfields Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 7963 Accepted: 3822 Description FJ has decided to grow his own corn hybrid in order to help the cows make the best possible milk. To that end, he's looking to build the c…

【LightOJ 1081】Square Queries（二维RMQ降维）

Little Tommy is playing a game. The game is played on a 2D N x N grid. There is an integer in each cell of the grid. The rows and columns are numbered from 1 to N. At first the board is shown. When the user presses a key, the screen shows three integ…