submatrix 难度级别: A: 编程语言:不限:运行时间限制:2000ms: 运行空间限制:131072KB: 代码长度限制:102400B 试题描述   小A有一个N×M的矩阵,矩阵中1~N*M这(N*M)个整数均出现过一次.现在小A在这个矩阵内选择一个子矩阵,其权值等于这个子矩阵中的所有数的最小值.小A想知道,如果他选择的子矩阵的权值为i(1<=i<=N×M),那么他选择的子矩阵可能有多少种?小A希望知道所有可能的i值对应的结果,但是这些结果太多了,他算不了,因此他向你求助. 输入…

 FZU 2105  Digits Count Time Limit:10000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Practice Description Given N integers A={A[0],A[1],...,A[N-1]}. Here we have some operations: Operation 1: AND opn L R Here opn, L and R are intege…

Largest Submatrix of All 1’s Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 5883   Accepted: 2217 Case Time Limit: 2000MS Description Given a m-by-n (0,1)-matrix, of all its submatrices of all 1’s which is the largest? By largest we me…

B. Maximum Submatrix 2 time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output You are given a matrix consisting of digits zero and one, its size is n × m. You are allowed to rearrange its rows. W…

Given an integer matrix, find a submatrix where the sum of numbers is zero. Your code should return the coordinate of the left-up and right-down number. Have you met this question in a real interview? Yes Example Given matrix [ [1 ,5 ,7], [3 ,7 ,-8],…

18.12 Given an NxN matrix of positive and negative integers, write code to find the submatrix with the largest possible sum. 这道求和最大的子矩阵,跟LeetCode上的Maximum Size Subarray Sum Equals k和Maximum Subarray很类似.这道题不建议使用brute force的方法,因为实在是不高效,我们需要借鉴上面LeetCode…

Problem 2105 Digits Count Accept: 302 Submit: 1477 Time Limit: 10000 mSec Memory Limit : 262144 KB Problem Description Given N integers A={A[0],A[1],-,A[N-1]}. Here we have some operations: Operation 1: AND opn L R Here opn, L and R are integers. For…

Description 题目描述 Given N integers A={A[0],A[1],...,A[N-1]}. Here we have some operations: Operation 1: AND opn L R Here opn, L and R are integers. For L≤i≤R, we do A[i]=A[i] AND opn (here "AND" is bitwise operation). Operation 2: OR opn L R Here…

B. Maximum Submatrix 2 Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/375/B Description You are given a matrix consisting of digits zero and one, its size is n × m. You are allowed to rearrange its rows. What is…

和为零的子矩阵 给定一个整数矩阵,请找出一个子矩阵,使得其数字之和等于0.输出答案时,请返回左上数字和右下数字的坐标. 样例 给定矩阵 [ [1 ,5 ,7], [3 ,7 ,-8], [4 ,-8 ,9], ] 返回 [(1,1), (2,2)] 挑战 O(n3) 时间复杂度 解题 直接暴露求解,时间复杂度O(N2*M2 ) public class Solution { /** * @param matrix an integer matrix * @return the coordinat…