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Merge Sorted Arrays

Merge Sorted Arrays
๋ณดํ†ต ์•Œ๊ณ ๋ฆฌ์ฆ˜ +20pts

Problem

Write a function that merges two sorted arrays into one sorted array.

Examples

Input: mergeSorted([1, 3, 5], [2, 4, 6])
Output: [1, 2, 3, 4, 5, 6]

Explanation

์ด ๋ฌธ์ œ๋Š” **ํˆฌ ํฌ์ธํ„ฐ(Two Pointer)** ๊ธฐ๋ฒ•์„ ์‚ฌ์šฉํ•œ ๋ณ‘ํ•ฉ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ํ•™์Šตํ•ฉ๋‹ˆ๋‹ค. ๋ณ‘ํ•ฉ ์ •๋ ฌ์˜ ํ•ต์‹ฌ ์—ฐ์‚ฐ์ž…๋‹ˆ๋‹ค. **ํˆฌ ํฌ์ธํ„ฐ ์ ‘๊ทผ๋ฒ•** ๊ฐ ๋ฐฐ์—ด์— ํฌ์ธํ„ฐ(์ธ๋ฑ์Šค)๋ฅผ ํ•˜๋‚˜์”ฉ ๋‘๊ณ , ๋” ์ž‘์€ ๊ฐ’์„ ๊ฐ€์ง„ ์ชฝ์—์„œ ์š”์†Œ๋ฅผ ๊ฐ€์ ธ์˜ต๋‹ˆ๋‹ค. **์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋™์ž‘** 1. i=0 (arr1 ํฌ์ธํ„ฐ), j=0 (arr2 ํฌ์ธํ„ฐ) 2. arr1[i]์™€ arr2[j] ๋น„๊ต 3. ๋” ์ž‘์€ ๊ฐ’์„ result์— ์ถ”๊ฐ€ํ•˜๊ณ  ํ•ด๋‹น ํฌ์ธํ„ฐ ์ฆ๊ฐ€ 4. ํ•œ ๋ฐฐ์—ด์ด ๋๋‚  ๋•Œ๊นŒ์ง€ ๋ฐ˜๋ณต 5. ๋‚จ์€ ์š”์†Œ๋“ค ์ถ”๊ฐ€ **[1,3,5]์™€ [2,4,6] ๋ณ‘ํ•ฉ ๊ณผ์ •** -...

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Key Concepts

ํˆฌ ํฌ์ธํ„ฐ ๊ธฐ๋ฒ• ๋ณ‘ํ•ฉ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ •๋ ฌ๋œ ๋ฐฐ์—ด ๋ณ‘ํ•ฉ ์ •๋ ฌ์˜ ๊ธฐ์ดˆ
Time: O(n + m) Space: O(n + m)
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