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LeetCode 228: Summary Ranges Solution in Java (Time: O(n))

DEV Community·Jerin·19 days ago
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#java#problem#example#algorithm#nums#list
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Difficulty : Easy Topics : Array Platform : Leetcode Problem Statement You are given a sorted unique integer array nums. A range [a,b] is the set of all integers from a to b (inclusive). Return the smallest sorted list of ranges that cover all the numbers in the array exactly. That is, each element of nums is covered by exactly one of the ranges, and there is no integer x such that x is in one of the ranges but not in nums. Each range [a,b] in the list should be output as: "a->b" if a != b "a" if a == b Problem Statement Simplified Get back the range of continuous numbers in the array. Mistakes and Learning Forgot to check for the leftover at the end of the for loop — always need to check the end-of-data scenario. Forgot to check if nums. length is 0 or not—always need to check if the nums array has any element in it.…

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