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feat: combination-sum ํ’€์ด
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โ€Žcombination-sum/grapefruitgreentealoe.jsโ€Ž

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@@ -86,8 +86,8 @@ var combinationSum = function(candidates, target) {
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return dp[target]
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};
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/**
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์‹œ๊ฐ„๋ณต์žก๋„: O(N ร— target ร— 2^target)
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N๊ฐœ ํ›„๋ณด๋ฅผ ์ˆœํšŒํ•˜๋ฉด์„œ, ๊ฐ ํ›„๋ณด๋งˆ๋‹ค target๊นŒ์ง€์˜ ๊ฐ’๋“ค์— ๋Œ€ํ•ด ๊ธฐ์กด ์กฐํ•ฉ๋“ค์„ ๋ณต์‚ฌํ•ด์„œ ์ƒˆ ์กฐํ•ฉ์„ ์ƒ์„ฑํ•˜๋Š”๋ฐ, ์กฐํ•ฉ ๊ฐœ์ˆ˜๊ฐ€ ์ง€์ˆ˜์ ์œผ๋กœ ์ฆ๊ฐ€ํ•จ
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๊ณต๊ฐ„๋ณต์žก๋„: O(target ร— 2^target)
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dp ๋ฐฐ์—ด์˜ ๊ฐ ์ธ๋ฑ์Šค์— ํ•ด๋‹น ๊ฐ’์„ ๋งŒ๋“œ๋Š” ๋ชจ๋“  ์กฐํ•ฉ๋“ค์„ ์ €์žฅํ•˜๋ฉฐ, ์ตœ์•…์˜ ๊ฒฝ์šฐ ์กฐํ•ฉ ๊ฐœ์ˆ˜๊ฐ€ ์ง€์ˆ˜์ ์œผ๋กœ ์ฆ๊ฐ€ํ•จ
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์‹œ๊ฐ„๋ณต์žก๋„: O(N ร— target ร— M)
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N๊ฐœ ํ›„๋ณด๋ฅผ ์ˆœํšŒํ•˜๋ฉด์„œ, ๊ฐ ํ›„๋ณด๋งˆ๋‹ค target๊นŒ์ง€์˜ ๊ฐ’๋“ค์— ๋Œ€ํ•ด ๊ธฐ์กด ์กฐํ•ฉ๋“ค์„ ๋ณต์‚ฌํ•ด์„œ ์ƒˆ ์กฐํ•ฉ์„ ์ƒ์„ฑํ•˜๋Š”๋ฐ, ๊ธฐ์กด์˜ ์กฐํ•ฉ์˜ ์ˆ˜ M์„ ๊ณฑํ•ด์•ผํ•จ
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๊ณต๊ฐ„๋ณต์žก๋„: O(target ร— M)
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dp ๋ฐฐ์—ด์˜ ๊ฐ ์ธ๋ฑ์Šค์— ํ•ด๋‹น ๊ฐ’์„ ๋งŒ๋“œ๋Š” ๋ชจ๋“  ์กฐํ•ฉ๋“ค์„ ์ €์žฅ. ์กฐํ•ฉ๊ฐœ์ˆ˜์— ๋”ฐ๋ผ์„œ ์ปค์ง
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*/

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