function maxArray(k) ksum = 0 for i = 1, k do ksum = ksum + array[i] end max_ksum = ksum for i = k + 1, n do add_index = i sub_index = i - k ksum = ksum + array[add_index] - array[sub_index] max_ksum = math.max(ksum, max_ksum) end return max_ksum ...
Second, assume that the maximum sub-array will be between rowaand rowb, inclusive. There are onlyO(n2)a,bpairs such thata<b. Try each of them. Since we already have the vertical prefix sum for all columns, the sum of elements inarr[a..b][c]for columnccan be computed inO(1)time...
algorithm that operates on arrays: it starts at the left end (element A[1]) and scans through to the right end (element A[n]), keeping track of the maximum sum subvector seen so far. The maximum is initially A[0]. Suppose we've solved the problem for A[1 .. i - 1]; how ca...
We investigate the maximum number of distinct palindromic sub-arrays in a two-dimensional finite word over a finite alphabet Σ. For any finite array in Σ^(m×n), we find an upper bound for the number of distinct palindromic sub-arrays and improve it by giving a tight bound on the ...
find-the-winner-of-an-array-game.c find-two-non-overlapping-sub-arrays-each-with-target-sum.c find-valid-matrix-given-row-and-column-sums.c find-winner-on-a-tic-tac-toe-game.c find-words-that-can-be-formed-by-characters.c first-bad-version.c first-missing-positive.c fi...
传送门:718. Maximum Length of Repeated Subarray Problem: Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. Example 1: Input: A: [ 1,2,3,2,1] B: [3,2,1,4,7] Output: 3 Explanation: The repeated subarray with maximum length is...
1777A-EverybodyLikesGoodArrays.cpp 1777B-Emordnilap.cpp 1778A-FlipFlopSum.cpp 1779A-HallOfFame.cpp 1779B-MKnezsConstructiveForces.cpp 1780A-HayatoAndSchool.cpp 1780B-GCDPartition.cpp 1781A-ParallelProjection.cpp 1781B-GoingToTheCinema.cpp 1783A-MakeItBeautiful.cpp 1783B-MatrixOfDifferences.cpp ...
We have to find the number of (contiguous, non-empty) subarrays such that the value of the maximum array element in that subarray is at least L and at most R. So if A = [2,1,4,3] and L = 2 and R = 3, then output will be 3 as there are three sub arrays that meet the...
You are given two integer arrays a and b of length n. You can reverse at most one subarray (continuous subsegment) of the array a. Your task is to reverse such a subarray that the sum Input The first line contains one integer n (1≤n≤5000). ...
Output:6Explanation: [4,-1,2,1] has the largest sum = 6. algorithm that operates on arrays: it starts at the left end (element A[1]) and scans through to the right end (element A[n]), keeping track of the maximum sum subvector seen so far. The maximum is initially A[0]. Su...