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๊ธฐ๋ณธ ์ฝ˜ํ…์ธ ๋กœ ๊ฑด๋„ˆ๋›ฐ๊ธฐ

BitCount - ์Šคํฌ๋ฆฝํŠธ ๋ฐ ์ฐจํŠธ ํ•จ์ˆ˜

BitCount()๋Š” 10์ง„์ˆ˜์™€ ๋™๋“ฑํ•œ 2์ง„์ˆ˜์—์„œ 1๋กœ ์„ค์ •๋œ ๋น„ํŠธ ์ˆ˜๋ฅผ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ์ฆ‰, ์ด ํ•จ์ˆ˜๋Š” integer_number์—์„œ ์„ค์ •๋œ ๋น„ํŠธ ์ˆ˜๋ฅผ ๋ฐ˜ํ™˜ํ•˜๋ฉฐ, ์—ฌ๊ธฐ์„œ integer_number๋Š” ๋ถ€ํ˜ธ ์žˆ๋Š” 32๋น„ํŠธ ์ •์ˆ˜๋กœ ํ•ด์„๋ฉ๋‹ˆ๋‹ค.

๊ตฌ๋ฌธ:  

BitCount(integer_number)

๋ฐ˜ํ™˜ ๋ฐ์ดํ„ฐ ์œ ํ˜•: ์ •์ˆ˜

์˜ˆ ๋ฐ ๊ฒฐ๊ณผ:  

์˜ˆ ๋ฐ ๊ฒฐ๊ณผ
์˜ˆ ๊ฒฐ๊ณผ
BitCount ( 3 ) 3์€ ์ด์ง„์ˆ˜ 11์ด๋ฏ€๋กœ 2๋ฅผ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค.
BitCount ( -1 ) -1์€ ์ด์ง„์ˆ˜๋กœ 1์ด 64๊ฐœ์ด๋ฏ€๋กœ ์ด๋Š” 64๋ฅผ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค.

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ์Šต๋‹ˆ๊นŒ?

์ด ํŽ˜์ด์ง€ ๋˜๋Š” ํ•ด๋‹น ์ฝ˜ํ…์ธ ์—์„œ ์˜คํƒ€, ๋ˆ„๋ฝ๋œ ๋‹จ๊ณ„ ๋˜๋Š” ๊ธฐ์ˆ ์  ์˜ค๋ฅ˜์™€ ๊ฐ™์€ ๋ฌธ์ œ๋ฅผ ๋ฐœ๊ฒฌํ•˜๋ฉด ๊ฐœ์„  ๋ฐฉ๋ฒ•์„ ์•Œ๋ ค ์ฃผ์‹ญ์‹œ์˜ค!