LeetCode 2248. Intersection of Multiple Arrays
Given a 2D integer array?nums
?where?nums[i]
?is a non-empty array of?distinct?positive integers, return?the list of integers that are present in?each array?of?nums
?sorted in?ascending order.
?
Example 1:
Input: nums = [[3,1,2,4,5],[1,2,3,4],[3,4,5,6]]
Output: [3,4]
Explanation: The only integers present in each of nums[0] = [3,1,2,4,5], nums[1] = [1,2,3,4], and nums[2] = [3,4,5,6] are 3 and 4, so we return [3,4].
Example 2:
Input: nums = [[1,2,3],[4,5,6]]
Output: []
Explanation: There does not exist any integer present both in nums[0] and nums[1], so we return an empty list [].
?
Constraints:
1 <= nums.length <= 1000
1 <= sum(nums[i].length) <= 1000
1 <= nums[i][j] <= 1000
All the values of?
nums[i]
?are?unique.
使用fori循環(huán)就報(bào)錯(cuò),超過索引,使用iterate循環(huán)就沒有問題,我也是奇了怪了。。。
Runtime:?2 ms, faster than?97.05%?of?Java?online submissions for?Intersection of Multiple Arrays.
Memory Usage:?43.5 MB, less than?14.52%?of?Java?online submissions for?Intersection of Multiple Arrays.