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…

Check Corners Time Limit: 2000/10000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1646    Accepted Submission(s): 597 Problem Description Paul draw a big m*n matrix A last month, whose entries Ai,j are all integer…

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[…

http://acm.hdu.edu.cn/showproblem.php?pid=2888 题意:给出一个n*m的矩阵,还有q个询问,对于每个询问有一对(x1,y1)和(x2,y2),求这个子矩阵中的最大值,和判断四个角有没有等于这个最大值的. 思路:二维RMQ模板题.注意内存卡的挺紧的. #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> using nam…

<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…

题目:点这里 题意:给出一个n*m的矩阵,然后又Q个询问:每个询问有x1,y1,x2,y2,x1,y1为子矩阵的左上角坐标,x2,y2为右上角的坐标.求此子矩阵中元素最大值,判断最大值是否在子矩阵四个角上,在就输出yes,否则输出no. 分析:二维RMQ直接上代码. #include<iostream> #include<stdio.h> #include<algorithm> #include<string.h> using namespace std;…

Problem Description Paul draw a big m*n matrix A last month, whose entries Ai,j are all integer numbers ( 1 <= i <= m, 1 <= j <= n ). Now he selects some sub-matrices, hoping to find the maximum number. Then he finds that there may be more tha…

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…

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…

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…