题目如下: Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these msubarrays. Note:If n is the length of array, ass…

[LeetCode]659. Split Array into Consecutive Subsequences 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/split-array-into-consecutive-subsequences/description/ 题目描述: You are g…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note:Given m satisfies the following const…

［抄题］: Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note:If n is the length of array, as…

做了Zenefits的OA,比面经里的简单多了..害我担心好久 阴险的Baidu啊,完全没想到用二分,一开始感觉要用DP,类似于极小极大值的做法. 然后看了答案也写了他妈好久. 思路是再不看M的情况下,最终结果的取值范围是[最大的元素,所有元素之和],然后就是用二分在这个范围里找. 注意二分的取舍要配合取舍方程,我用的方程是,保证子集的和都小于等于二分测试的那个二分M,然后集合数小于要求的m.一旦子集数量超过m,说明我们测试的二分M太小了,弄大点,才能让每个子集多放点元素,从而使得总子集数不超过…

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 解题方法 暴力 日期 题目地址:https://leetcode-cn.com/problems/split-array-with-equal-sum/ 题目描述 Given an array with n integers, you need to find if there are triplets (i, j, k) which satisfies fol…

给定一个非负整数数组和一个整数 m,你需要将这个数组分成 m 个非空的连续子数组.设计一个算法使得这 m 个子数组各自和的最大值最小.注意:数组长度 n 满足以下条件:    1 ≤ n ≤ 1000    1 ≤ m ≤ min(50, n)示例:输入:nums = [7,2,5,10,8]m = 2输出:18解释:一共有四种方法将nums分割为2个子数组.其中最好的方式是将其分为[7,2,5] 和 [10,8],因为此时这两个子数组各自的和的最大值为18,在所有情况中最小.详见:https:…

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 解题方法 日期 题目地址:https://leetcode.com/problems/split-array-into-fibonacci-sequence/description/ 题目描述 Given a string S of digits, such as S = "123456579", we can split it into a Fib…

题目如下: 解题思路:本题可以维护三个字典,dic_1保存没有组成序列的单元素,dic_2保存组成了包含两个元素的序列中的较大的元素,dic_3保存组成了包括三个或者三个以上元素的序列中的最大值.因为合法的序列至少要三个元素,解题的关键是要使得dic_2和dic_1的元素尽快满足条件.对于任意一个还没有加入字典的元素,加入字典的优先级从高到低排序分别是dic_2 > dic_1 > dic_3,即优先匹配dic_2,接下来匹配dic_1,再就是dic_3,如果三个都不满足,说明在目前条件下市落…

题目如下: 解题思路:本题和[leetcode]583. Delete Operation for Two Strings 类似,区别在于word1[i] != word2[j]的时候,是删除word1[i]还是word2[j]取决于min(dp[i-1][j]+ord(word1[i-1]),dp[i][j-1]+ord(word2[j-1])). 代码如下: class Solution(object): def minimumDeleteSum(self, s1, s2): ""…

题目如下: 解题思路:本题和[leetcode]75. Sort Colors类似,但是没有要求在输入数组本身修改,所以难度降低了.引入一个新的数组,然后遍历输入数组,如果数组元素是是偶数,插入到新数组头部,否则追加到尾部. 代码如下: class Solution(object): def sortArrayByParity(self, A): """ :type A: List[int] :rtype: List[int] """ res =…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note:Given m satisfies the following const…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note: Given m satisfies the following cons…

题目如下: Given an integer array A, you partition the array into (contiguous) subarrays of length at most K.  After partitioning, each subarray has their values changed to become the maximum value of that subarray. Return the largest sum of the given arr…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note: Given m satisfies the following cons…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Note:If n is the length of array, assume t…

题意大概就是,给定一个包含非负整数的序列nums以及一个整数m,要求把序列nums分成m份,并且要让这m个子序列各自的和的最大值最小(minimize the largest sum among these m subarrays). Note:If n is the length of array, assume the following constraints are satisfied: 1 ≤ n ≤ 10001 ≤ m ≤ min(50, n) Examples: Input:num…

Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an algorithm to minimize the largest sum among these m subarrays. Examples: Input: nums = [7,2,5,10,8] m = 2…

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 解题方法 日期 题目地址:https://leetcode.com/problems/partition-array-into-three-parts-with-equal-sum/ 题目描述 Given an array A of integers, return true if and only if we can partition the array…

题目如下: Given an array A of integers, return true if and only if we can partition the array into three non-emptyparts with equal sums. Formally, we can partition the array if we can find indexes i+1 < j with (A[0] + A[1] + ... + A[i] == A[i+1] + A[i+2]…

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 解题方法 动态规划 相似题目 参考资料 日期 题目地址:https://leetcode.com/problems/minimum-falling-path-sum/description/ 题目描述 Given a square array of integers A, we want the minimum sum of a falling path th…

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 解题方法 二分查找 字典 相似题目 参考资料 日期 题目地址:https://leetcode.com/problems/binary-subarrays-with-sum/description/ 题目描述 In an array A of 0s and 1s, how many non-empty subarrays have sum S? Example…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/minimum-size-subarray-sum/description/ 题目描述: Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray…

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 解题方法 累积和 日期 题目地址:https://leetcode.com/problems/contiguous-array/description/ 题目描述 Given a binary array, find the maximum length of a contiguous subarray with equal number of 0 and 1…

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 解题方法 DFS 动态规划 日期 题目地址:https://leetcode.com/problems/partition-equal-subset-sum/description/ 题目描述 Given a non-empty array containing only positive integers, find if the array can be…

题目: Given an integer array nums, return the number of range sums that lie in [lower, upper] inclusive. Range sum S(i, j) is defined as the sum of the elements in nums between indices i and  j (i ≤ j), inclusive. Note: A naive algorithm of O(n2) is tr…

Question: Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there isn't one, return 0 instead. For example, given the array [2,3,1,2,4,3] and s = 7, the subarray…

题目如下: Given a square array of integers A, we want the minimum sum of a falling path through A. A falling path starts at any element in the first row, and chooses one element from each row.  The next row's choice must be in a column that is different…

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 解题方法 统计 日期 题目地址:https://leetcode.com/problems/split-a-string-in-balanced-strings/ 题目描述 Balanced strings are those who have equal quantity of 'L' and 'R' characters. Given a balanced…

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 解题方法 prefix Sum 日期 题目地址:https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k/ 题目描述 Given an array nums and a target value k, find the maximum length of a subarray that…