README ¶ 所有奇数长度子数组的和 给你一个正整数数组 arr ,请你计算所有可能的奇数长度子数组的和。 子数组 定义为原数组中的一个连续子序列。 请你返回 arr 中 所有奇数长度子数组的和 。 示例 1: 输入:arr = [1,4,2,5,3] 输出:58 解释:所有奇数长度子数组和它们的和为: [1] = 1 [4] = 4 [2] = 2 [5] = 5 [3] = 3 [1,4,2] = 7 [4,2,5] = 11 [2,5,3] = 10 [1,4,2,5,3] = 15 我们将所有值求和得到 1 + 4 + 2 + 5 + 3 + 7 + 11 + 10 + 15 = 58 示例 2: 输入:arr = [1,2] 输出:3 解释:总共只有 2 个长度为奇数的子数组,[1] 和 [2]。它们的和为 3 。 示例 3: 输入:arr = [10,11,12] 输出:66 提示: 1 <= arr.length <= 100 1 <= arr[i] <= 1000 Expand ▾ Collapse ▴ Documentation ¶ There is no documentation for this package. Source Files ¶ View all Source files 1588.sum-of-all-odd-length-subarrays.go Click to show internal directories. Click to hide internal directories.