Amazon phone interview 2questions
1.Find same sub tree same as leetcode https://leetcode.com/problems/subtree-of-another-tree/
2.You are given two lists of closed intervals, firstList and secondList, where firstList[i] = [starti, endi] and secondList[j] = [startj, endj]. Each list of intervals is pairwise disjoint and in sorted order.
//Return the intersection of these two interval lists.
//A closed interval [a, b] (with a <= b) denotes the set of real numbers x with a <= x <= b.
//The intersection of two closed intervals is a set of real numbers that are either empty or represented as a closed interval. For example, the intersection of [1, 3] and [2, 4] is [2, 3].
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//Example 1:
//Input: firstList = [[0,2],[5,10],[13,23],[24,25]], secondList = [[1,5],[8,12],[15,24],[25,26]] Output: [[1,2],[5,5],[8,10],[15,23],[24,24],[25,25]]
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//Example 2:
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//Input: firstList = [[1,3],[5,9]], secondList = []Output: []
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//Example 3:
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//Input: firstList = [], secondList = [[4,8],[10,12]]Output: []
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//Example 4:
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//Input: firstList = [[1,7]], secondList = [[3,10]]Output: [[3,7]]