the contiguous subarray[4,−1,2,1]has the largest sum =6. click to show more practice. Subscribeto see which companies asked this question 1publicclassSolution {2publicintmaxSubArray(int[] nums) {3if(nums ==null)return0;4if(nums.length == 1)returnnums[0];5intcurmax = 0;6intans ...
2、一开始sum的初值取的是 nums[i], j 从 i + 1 开始,然后发现最后一个元素(也是一个子序列)不会进入判断,所以遍历所有子序列的时候 j 应该是从 i 开始,sum的初值取0; 答案代码: 1publicintmaxSubArray(int[] nums) {2intn =nums.length;3int[] dp =newint[n];4dp[0] = nums[0];5intmax ...
classSolution{publicintmaxSubArray(int[]nums){if(nums.length==0){return0;}intsum=nums[0];//sum保存着跟随idx遍历nums每个索引为结束位置的最大值(不是太好理解)intmax=nums[0];//max保存着idx及其以前的元素为结束位置的最大值for(intidx=1;idx<nums.length;++idx){//注意idx从1开始,因为sum和max...
这类subarray,continuous subarray的套路就是必须以每个位置结尾的情况下解subproblem 例: 必须以0位置结尾情况下的最长。。。 必须以1位置结尾的最长。。 用一个HashMap记录所有sum to k 第一次出现的index 比如HashMap<10, 5> 累加和为10 第一次出现在index5. 下图例子是假设要求k=300的subarray. 我们从array...
class Solution { public int maxSubArray(int[] nums) { int sum = 0, max = Integer.MIN_VALUE; for(int i=0; i<nums.length; i++){ //execute sum += nums[i]; max = Math.max(max, sum); //update if(sum<0) sum=0; }
Now to combine two arrays, the maximum subarray sum of the combined array would be max(p(1)2,p(2)2,p(1)2+p(1)3+p(2)1+p(2)2)max(p2(1),p2(2),p2(1)+p3(1)+p1(2)+p2(2)). The remaining left and right side parts can be maintained easily. The final answer will be ...
Maximum Subarray Sum with One Deletion 参考资料: https://leetcode.com/problems/k-concatenation-maximum-sum/ https://leetcode.com/problems/k-concatenation-maximum-sum/discuss/382885/Short-and-concise-O(N)-C%2B%2B-solution https://leetcode.com/problems/k-concatenation-maximum-sum/discuss/382350/...
LeetCode - The World's Leading Online Programming Learning Platformleetcode.com/problems/maximum-gcd-sum-of-a-subarray/description/ 简单介绍一下题目大意,更详细的描述可以见链接中的原题描述及样例数据: 给定一个长度为n的正整数数组nums。对于nums的任意一个子数组(连续、非空的一段),定义s为子数组...
LeetCode 325. Maximum Size Subarray Sum Equals k 若谷 追求卓越,成功就会在不经意间追上你题目: Given an array nums and a target value k, find the maximum length of a subarray that sums to k. If there isn't one, return 0 instead. Note:The sum of the entire nums array is guaranteed ...
So you need to find a way to optimise your solution ReD_HeaDeD (4 kyu) 2 years ago Thanks...but what methods should I use? Should obtain correct maximum subarray sum in 10 random tests with array size 10000 <= size <= 20000 and with integer entries -100 <= n <= 100 Testing ...