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1 parent 7ead471 commit 6a053f1Copy full SHA for 6a053f1
โreverse-bits/Gotprgmer.javaโ
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+// ์ฒ์ ๋ฌธ์ ๋ฅผ ๋ดค์๋๋ ์ดํด๊ฐ ์ ๊ฐ์ง ์์์ง๋ง,
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+// ๋นํธ๋ค์ ๋ค์ง์ผ๋ผ๋ ์ค๋ช ์ผ๋ก ํ์๋ ๊ฒ ๊ฐ๋ค.
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+// Integer.reverse() ๋ฉ์๋๋ฅผ ์ฌ์ฉํ์ฌ ํ์๋ค.
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+// ์งํผํฐ์ ๋์์ผ๋ก Integer.reverse()๋ฅผ ์ฌ์ฉํ๋ผ๋ ํํธ๋ฅผ ์ป์๋ค.
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+// ์ฐพ์๋ณด๋ reverse(N)๋ N์ 2์ ๋ณด์ ๋นํธ๋ก ๋ฐ๊พธ๊ณ ๊ทธ๊ฒ์ ๋ค์ง๋ ๋ฐฉ์์ด์๋ค.
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+// ์๊ฐ๋ณต์ก๋ : O(1) -> Integer๊ฐ 32๋นํธ ๊ณ ์ ์ด๋ผ์ O(1)
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+// ๊ณต๊ฐ๋ณต์ก๋ : O(1) -> 32๋นํธ ๊ณ ์
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+public class Solution {
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+ // you need treat n as an unsigned value
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+ public int reverseBits(int n) {
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+ return Integer.reverse(n);
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+ }
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+}
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