Given an array of integers, find a contiguous subarray which has the largest sum. 首先 當題目涉及到求最大最小值時,最初的比較數字就應當設置爲INT_MAX或INT_MIN,更爲安全. <limits.h>中有INT_MAX和INT_MIN的宏定義可直接使用. 或者自行定義宏 #define INT_MAX 0x7fffffff #define INT_MIN 0x80000000 INT_MAX = INT_M…

这道题和max subarray很类似,我用local 和 global 的dp方式阔以解决这道 那么我们来看动态规划的四个要素分别是什么? State: localmin[i] 表示以当前第i个数最为结尾的最小连续子数组和. globalmin[i] 表示以当i个数里面(可以不以第i个作为结尾)的最小连续子数组和. Function: localmin[i] = min(localmin[i - 1] + nums.get(i), nums.get(i)); globalmin[i] = mi…

Description Given an array of integers, find a contiguous subarray which has the largest sum. The subarray should contain at least one number. Example Given the array [−2,2,−3,4,−1,2,1,−5,3], the contiguous subarray [4,−1,2,1] has the largest sum = 6…

Given an array of integers, find a contiguous subarray which has the largest sum. Notice The subarray should contain at least one number. Have you met this question in a real interview? Yes Example Given the array [−2,2,−3,4,−1,2,1,−5,3], the contigu…

53. Maximum Subarray 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. 思路:这个题还挺经典…

转自:http://kartikkukreja.wordpress.com/2013/06/17/kadanes-algorithm/ 本来打算自己写的,后来看到上述链接的博客已经说得很清楚了,就不重复劳动啦. Here, I describe variants of Kadane’s algorithm to solve the maximum subarray and the minimum subarray problems. The maximum subarray problem is…

1.   Maximum Subarray (#53) 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 s…

<算法导论>一书中演示分治算法的第二个例子,第一个例子是递归排序,较为简单.寻找maximum subarray稍微复杂点. 题目是这样的:给定序列x = [1, -4, 4, 4, 5, -3, -4, 9, 6 - 4, 6, 4, 3, -5]:寻找一个连续的子序列,使得其和是最大. 这个题目有意义的地方在于,序列X的元素有正有负. 思路很简单,把序列分为相同的两部分A和B,在其内寻找maximum subarray,那么maximum subarray有可能在A中,也有可能在B中,也有…

Maximum Subarray 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. More practice:…

Maximum Subarray 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. More practice:…