[ 2023-05-27 ๐ŸŒœ TIL ]

Burkeyยท2023๋…„ 5์›” 27์ผ
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๋ชฉ๋ก ๋ณด๊ธฐ
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LV.1 ์•ฝ์ˆ˜์˜ ๊ฐœ์ˆ˜์™€ ๋ง์…ˆ


๋ฌธ์ œ๋งํฌ

def solution(left, right):
    answer = 0
    
    def aksu_even_check (n): # ์•ฝ์ˆ˜์˜ ๊ฐฏ์ˆ˜๊ฐ€ ์ง์ˆ˜ ํ™•์ธ ํ•จ์ˆ˜
        count = 1
        for num in range(1,n):
            if(n % num) == 0:
                count += 1
        if (count % 2) == 0: # ์•ฝ์ˆ˜์˜ ๊ฐฏ์ˆ˜๊ฐ€ ์ง์ˆ˜์ผ ๊ฒฝ์šฐ
            return True
        else: # ํ™€์ˆ˜ ์ผ ๊ฒฝ์šฐ
            return False
            
    for num in range(left, right+1):
        if aksu_even_check(num):
            answer += num # ์•ฝ์ˆ˜์˜ ๊ฐฏ์ˆ˜๊ฐ€ ์ง์ˆ˜๋ฉด +
        else:
            answer -= num # ์•ฝ์ˆ˜์˜ ๊ฐฏ์ˆ˜๊ฐ€ ํ™€์ˆ˜๋ฉด -
            
    return answer

๋‹ค๋ฅธ ํ•ด๊ฒฐ์ฝ”๋“œ๋ฅผ ๋ณด์•˜๋Š”๋ฐ ์ œ๊ณฑ๊ทผ์ด ๋”ฑ ๋‚˜๋ˆ„์–ด ๋–จ์–ด์ง€๋Š” ์ˆ˜๋“ค์˜ ์•ฝ์ˆ˜์˜ ๊ฐฏ์ˆ˜๊ฐ€ ํ™€์ˆ˜๊ฐœ๋ฅผ ๊ฐ€์ง€๋Š” ํŠน์ง•์„ ์‚ฌ์šฉํ•˜์—ฌ ํ•ด๊ฒฐํ•œ ๊ฒฝ์šฐ๊ฐ€ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.

์œ„์™€ ๊ฐ™์€ ์ฝ”๋“œ๋Š” ์ด์ค‘๋ฐ˜๋ณต์„ ํ•˜๊ณ  ์žˆ๊ธฐ์— ์ œ๊ณฑ๊ทผ์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๊ฒƒ์ด ํ›จ์”ฌ ์ข‹์€ ์„ ํƒ์ผ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.


LV.1 ์ž๋ฆฟ์ˆ˜ ๋”ํ•˜๊ธฐ


๋ฌธ์ œ๋งํฌ

def solution(n):
    str_n = str(n) # ๋ฌธ์ž์—ด๋กœ ๋ณ€ํ™˜
    index_n = len(str_n) - 1
    answer = 0
    while index_n >= 0:
        answer += int(str_n[index_n]) # ๋’ค์—์ž๋ฆฟ์ˆ˜ ๋ถ€ํ„ฐ ๋”ํ•˜๊ธฐ
        index_n -= 1
    return answer

์‰ฌ์šด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋Š” ๋‚ ์€ ๋ฌธ์ œ๋ฅผ 2๊ฐœ!

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