Java | Leetcode Java题解之第349题两个数组的交集

题目：

题解：

class Solution {public int[] intersection(int[] nums1, int[] nums2) {Arrays.sort(nums1);Arrays.sort(nums2);int length1 = nums1.length, length2 = nums2.length;int[] intersection = new int[length1 + length2];int index = 0, index1 = 0, index2 = 0;while (index1 < length1 && index2 < length2) {int num1 = nums1[index1], num2 = nums2[index2];if (num1 == num2) {// 保证加入元素的唯一性if (index == 0 || num1 != intersection[index - 1]) {intersection[index++] = num1;}index1++;index2++;} else if (num1 < num2) {index1++;} else {index2++;}}return Arrays.copyOfRange(intersection, 0, index);}
}