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.

解题思路:

题目比较简单,leetcode中有多个类似题目;

从左向右遍历,计算当前遍历到的元素之和,如果和为负,说明这些被累加的元素不会对后面序列提供“正值”的贡献,因此和值清零,继续计算;

在计算和的过程中,不断记录能取到的最大值。

注意数组中全为负数的情况。

 class Solution {
public:
int maxSubArray(vector<int>& nums) {
int max = nums[];
int cur_sum = ;
for (int i = ; i < nums.size(); ++i) {
cur_sum += nums[i];
if (cur_sum > max)
max = cur_sum;
if (cur_sum < )
cur_sum = ;
} return max;
}
};

【Leetcode】【Medium】Maximum Subarray的更多相关文章

  1. 【LeetCode题意分析&解答】40. Combination Sum II

    Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in ...

  2. 【LeetCode题意分析&解答】37. Sudoku Solver

    Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by th ...

  3. 【LeetCode题意分析&解答】35. Search Insert Position

    Given a sorted array and a target value, return the index if the target is found. If not, return the ...

  4. 【LeetCode】最大子阵列 Maximum Subarray(贪婪&分治)

    描述: Given an integer array nums, find the contiguous subarray (containing at least one number) which ...

  5. ACM金牌选手整理的【LeetCode刷题顺序】

    算法和数据结构知识点图 首先,了解算法和数据结构有哪些知识点,在后面的学习中有 大局观,对学习和刷题十分有帮助. 下面是我花了一天时间花的算法和数据结构的知识结构,大家可以看看. 后面是为大家 精心挑 ...

  6. 【LeetCode每天一题】Maximum Subarray(最大子数组)

    Given an integer array nums, find the contiguous subarray (containing at least one number) which has ...

  7. 【leetcode刷题笔记】Maximum Depth of Binary Tree

    Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the long ...

  8. 【LeetCode算法题库】Day7:Remove Nth Node From End of List & Valid Parentheses & Merge Two Lists

    [Q19] Given a linked list, remove the n-th node from the end of list and return its head. Example: G ...

  9. 【LeetCode算法题库】Day4:Regular Expression Matching & Container With Most Water & Integer to Roman

    [Q10] Given an input string (s) and a pattern (p), implement regular expression matching with suppor ...

  10. 【LeetCode算法题库】Day3:Reverse Integer & String to Integer (atoi) & Palindrome Number

    [Q7]  把数倒过来 Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Outpu ...

随机推荐

  1. 安装APK时报 Installation failed with message Failed to finalize session : INSTALL_FAILED_USER_RESTRICTED: Invalid apk.

    Installation failed with message Failed to finalize session : INSTALL_FAILED_USER_RESTRICTED: Invali ...

  2. maven打包时跳过测试类

    记录 修改pom.xml文件 <project> [...] <build> <plugins> <plugin> <groupId>org ...

  3. RealProxy AOP的实现

    微软有一篇实现 一下是对于该实现的理解 https://msdn.microsoft.com/zh-cn/library/dn574804.aspx public class DynamicProxy ...

  4. python学习-基础知识-1

    1.计算机历史 计算机使用高低电压的两种状态来描述信息.计算机可以理解的只有二进制数据即010100011....,1个比特位可以表示的状态只有2种,n个比特位可以表示的状态有2的n次方种. 所以如果 ...

  5. PL/SQL Developer中输入SQL语句时如何自动提示字段

    在PL/SQL Developer中编写sql语句时,如果无法自动提示字段那是一件痛苦的事情,工作效率又低,在此演示下如何在PL/SQL Developer工具中自动提示字段,让开发者省时又省心,操作 ...

  6. Parsing Failure in config.xml: java.lang.IllegalArgumentException: In production mode, it's not allowed to set a clear text value to the property

    Step1). in your "setDomainEnv.sh" script set the "PRODUCTION_MODE=false" or use ...

  7. javascript高性能

    我在<javascript高性能> 这本书里面读到这个文章,所以做一下学习笔记,供大家一块学习: 无阻塞脚本的概念什么? 为什么要用无阻塞脚本? 如何实现无阻塞脚本,和每个实现方式应该注意 ...

  8. sublime text 3 3143注册码

    1.点击help->enter license: —– BEGIN LICENSE —– TwitterInc 200 User License EA7E-890007 1D77F72E 390 ...

  9. Navicat 大小写

    1.找到数据库表的存在位置 比如我的是C:\ProgramData\MySQL\MySQL Server 5.7\Data\tinysdpm 2.修改小写的表名称 比如customer_type.fr ...

  10. JavaScript的六种数据类型

      JavaScript数据类型有六种:number.string.boolean.null.undefined.object