14.6 Implement a CircularArray class that supports an array-like data structure which can be efficiently rotated.The class should use a generic type, and should support iteration via the standard for (Obj o : CircularArray) notation. 这道题让我们实现一个环形数组类C…
题目链接:51nod 1050 循环数组最大子段和 #include<stdio.h> #include<algorithm> using namespace std; ; long long a[N]; int main(){ int n, i; ; scanf("%d", &n); ; i <= n; ++i){ scanf("%I64d", &a[i]); sum += a[i]; } ma_ed = a[]; a…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题思路 快慢指针 代码 日期 题目地址:https://leetcode.com/problems/circular-array-loop/ 题目描述 You are given a circular array nums of positive and negative integers. If a number k at an index is posi…
题目链接:http://www.51nod.com/onlineJudge/questionCode.html#!problemId=1050 这道题的最大子段和有两种可能,一种是常规的子段和,另一种是从结尾到开头的一个子段.常规做是一种可能,另一种带循环的则可以认为是序列中间有一段最小子段和,把这段最小子段和去掉,剩下的可能就是最大子段和了. #include <bits/stdc++.h> using namespace std; typedef long long LL; * ; int…
http://www.51nod.com/onlineJudge/questionCode.html#problemId=1050¬iceId=13385 参考:http://blog.csdn.net/acdreamers/article/details/38760805 #include<cstdio> #include<algorithm> using namespace std; typedef long long ll; int n; ll a[]; ll…
http://www.itint5.com/oj/#9 一开始有了个n*n的算法,就是把原来的数组*2,由环形的展开成数组.然后调用n次最大子段和的方法.超时. 后来看到个O(n)的算法,就是如果不跨越末尾,就是最大字段和:如果跨越末尾,就是sum-(最小子段和)http://blog.csdn.net/hackbuteer1/article/details/6694193 int maxConsSum2(const vector<int> &arr) { if (arr.size()…
You are given an array of positive and negative integers. If a number n at an index is positive, then move forward n steps. Conversely, if it's negative (-n), move backward n steps. Assume the first element of the array is forward next to the last el…
You are given an array of positive and negative integers. If a number n at an index is positive, then move forward n steps. Conversely, if it's negative (-n), move backward n steps. Assume the first element of the array is forward next to the last el…
［抄题］: 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. 方法一:贪心算法greedy ［一句话思路］: 每次…
