问题简介 本文将介绍计算机算法中的经典问题——最大子数组问题(maximum subarray problem)。所谓的最大子数组问题,指的是:给定一个数组A,寻找A的和最大的非空连续子数组。比如,数组 A = [-2, -3, 4, -1, -2…
设prefix为前缀和,设i < j,一般都是通过算sum = prefix[j] - prefix[i]求和的最大值,但是本题中有取模,要求sum最大。 第一种情况:如果prefix[j] > prefix[i],sum < prefix[j],这种情况就不需要考虑了。 第二种情况:prefix[j] < prefix[i],又i < j,那么prefix[j]是取模后得到的值,此时sum ...
//A Divide and Conquer based program for maximum subarray sum problem#include <stdio.h>#include<limits.h>//A utility funtion to find maximum of two integersintmax(inta,intb) {return(a > b)?a : b; }//A utility funtion to find maximum of three integersintmax(inta,intb,intc) {return...
int maxSubarraySumCircular(vector<int>& A) { vector<int> pre_sum; int sum = 0; int max_nor= maxSubArray(A); for(int i = A.size()-1; i>=0;i--){ sum += A[i] ; A[i] = -A[i]; } int max_cir = sum + maxSubArray(A); if(sum!=0&& max_cir == 0 ) return max_...
本文将介绍计算机算法中的经典问题——最大子数组问题(maximum subarray problem)。所谓的最大子数组问题,指的是:给定一个数组A,寻找A的和最大的非空连续...
problem: Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [−2,1,−3,4,−1,2,1,−5,4], the contiguous subarray [4,−1,2,1] has the largest sum = 6. ...
https://leetcode.com/problems/maximum-subarray/ 题目描述 Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and returnits sum. Example 1: Input: nums=[-2,1,-3,4,-1,2,1,-5,4] ...
I am getting WA on test 28 ofthisproblem. Would really appreciate all the help. My Approach Basically, I am partitioning each segment[l…r][l…r]into three partitions,p1,p2,p3p1,p2,p3where p2p2= maximum subarray sum in[l…r][l…r] ...
本文将介绍计算机算法中的经典问题——最大子数组问题(maximum subarray problem)。所谓的最大子数组问题,指的是:给定一个数组A,寻找A的和最大的非空连续子数组。比如,数组 A = [-2, -3, 4, -1, -2, 1, 5, -3], 最大子数组应为[4, -1, -2, 1, 5],其和为7。 首先,如果...
(5kyu) The maximum sum subarray problem consists in finding the maximum sum of a contiguous subsequence in an array or list of integers: maxSequence([-2 , 1, -3, 4, -1 , 2, 1, -5, 4]) # should be 6: [4, -1, 2, 1] ...