class Solution: def maximumSubarraySum(self, nums: List[int], k: int) -> int: # ans 维护所有长度为 k 且数字各不相同的子数组中,子数组和的最大值 ans: int = 0 # sum 维护当前滑动窗口 [l, r] 内的数字和 sum: int = 0 # num_to_cnt 表示滑动窗口 [l, r] 内每个数字的出现次数 nu...
Given an array of integers, return the maximum sum for a non-empty subarray (contiguous elements) with at most one element deletion. In other words, you want to choose a subarray and optionally delete one element from it so that there is still at least one element left and the sum of t...
classic dp: dp[i] represents the maximum sum of subarray which ends in nums[i], and dp[i] = Math.max(nums[i], dp[i - 1] + nums[i]). and since we have to include nums[i] due to it’s on the defination of dp[i], and when dp[i-1]<0 we can just choose not to add ...
Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array. (Formally, C[i] = A[i] when 0 <= i < A.length, and C[i+A.length] ...
Explanation: We just choose [3] and it's the maximum sum. Example 3: Input: arr = [-1,-1,-1,-1] Output: -1 Explanation: The final subarray needs to be non-empty. You can't choose [-1] and delete -1 from it, then get an empty subarray to make the sum equals to 0. ...
* 53.Maximum Subarray(最大子序和) * 给定一个序列(至少含有 1 个数),从该序列中寻找一个连续的子序列,使得子序列的和最大。 * 例如,给定序列 [-2,1,-3,4,-1,2,1,-5,4], * 连续子序列 [4,-1,2,1] 的和最大,为 6。 */publicclassSolution53{publicstaticvoidmain(String[] args){Soluti...
Explanation: We just choose [3] and it's the maximum sum. Example 3: Input: arr = [-1,-1,-1,-1] Output: -1 Explanation: The final subarray needs to be non-empty. You can't choose [-1] and delete -1 from it, then get an empty subarray to make the sum equals to 0. ...
53returnsum -minsum;54}55}56intmaxSubarraySumCircular(vector<int>&A)57{58intflag =1;59intMIN =INT_MIN;60for(auto d:A)61{62if(d>=0)63{64flag =0;65break;66}67if(d>MIN)68MIN =d;69}70if(flag)71{72returnMIN;73}74inta =0,b = A.size()-1;75returnmaxSumCycle(A,a,b);76...
Leetcode 325: Maximum Size Subarray Sum Equals k Given an arraynumsand a target valuek, find the maximum length of a subarray that sums tok. If there isn't one, return 0 instead. Note: The sum of the entirenumsarray is guaranteed to fit within the 32-bit signed integer range....
Given an integer arraynumsand an integerk, returnthe maximum length of a subarray that sums tok. If there is not one, return0instead. Example 1: Input: nums = [1,-1,5,-2,3], k = 3 Output: 4 Explanation: The subarray [1, -1, 5, -2] sums to 3 and is the longest. ...