[Python] ๋ฐฑ์ค€ 1316 - ๊ทธ๋ฃน ๋‹จ์–ด ์ฒด์ปค

2020. 10. 6. 00:33ยทAlgorithm

๋ฌธ์ œ

๊ทธ๋ฃน ๋‹จ์–ด๋ž€ ๋‹จ์–ด์— ์กด์žฌํ•˜๋Š” ๋ชจ๋“  ๋ฌธ์ž์— ๋Œ€ํ•ด์„œ, ๊ฐ ๋ฌธ์ž๊ฐ€ ์—ฐ์†ํ•ด์„œ ๋‚˜ํƒ€๋‚˜๋Š” ๊ฒฝ์šฐ๋งŒ์„ ๋งํ•œ๋‹ค. ์˜ˆ๋ฅผ ๋“ค๋ฉด, ccazzzzbb๋Š” c, a, z, b๊ฐ€ ๋ชจ๋‘ ์—ฐ์†ํ•ด์„œ ๋‚˜ํƒ€๋‚˜๊ณ , kin๋„ k, i, n์ด ์—ฐ์†ํ•ด์„œ ๋‚˜ํƒ€๋‚˜๊ธฐ ๋•Œ๋ฌธ์— ๊ทธ๋ฃน ๋‹จ์–ด์ด์ง€๋งŒ, aabbbccb๋Š” b๊ฐ€ ๋–จ์–ด์ ธ์„œ ๋‚˜ํƒ€๋‚˜๊ธฐ ๋•Œ๋ฌธ์— ๊ทธ๋ฃน ๋‹จ์–ด๊ฐ€ ์•„๋‹ˆ๋‹ค.

๋‹จ์–ด N๊ฐœ๋ฅผ ์ž…๋ ฅ์œผ๋กœ ๋ฐ›์•„ ๊ทธ๋ฃน ๋‹จ์–ด์˜ ๊ฐœ์ˆ˜๋ฅผ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค.

 

์ž…๋ ฅ

์ฒซ์งธ ์ค„์— ๋‹จ์–ด์˜ ๊ฐœ์ˆ˜ N์ด ๋“ค์–ด์˜จ๋‹ค. N์€ 100๋ณด๋‹ค ์ž‘๊ฑฐ๋‚˜ ๊ฐ™์€ ์ž์—ฐ์ˆ˜์ด๋‹ค. ๋‘˜์งธ ์ค„๋ถ€ํ„ฐ N๊ฐœ์˜ ์ค„์— ๋‹จ์–ด๊ฐ€ ๋“ค์–ด์˜จ๋‹ค. ๋‹จ์–ด๋Š” ์•ŒํŒŒ๋ฒณ ์†Œ๋ฌธ์ž๋กœ๋งŒ ๋˜์–ด์žˆ๊ณ  ์ค‘๋ณต๋˜์ง€ ์•Š์œผ๋ฉฐ, ๊ธธ์ด๋Š” ์ตœ๋Œ€ 100์ด๋‹ค.

 

์ถœ๋ ฅ

์ฒซ์งธ ์ค„์— ๊ทธ๋ฃน ๋‹จ์–ด์˜ ๊ฐœ์ˆ˜๋ฅผ ์ถœ๋ ฅํ•œ๋‹ค.


์ •๋‹ต

n = int(input())
count = 0

for i in range(n):
    s = list(input())
    for j in range(len(s)):
        if j != len(s) - 1:
            if s[j] == s[j+1]:
                pass
            elif s[j] in s[j+1:]:
                break
        else:
            count += 1
print(count)

s[j]์™€ s[j+1]์ด ๊ฐ™๋‹ค๋ฉด ๋„˜์–ด๊ฐ€๊ณ  ๊ฐ™์ง€ ์•Š์œผ๋ฉด s[j+1:] ์•ˆ์— s๊ฐ€ ์žˆ๋Š”์ง€ ์—†๋Š”์ง€ ๊ฒ€์‚ฌํ•ด์ค๋‹ˆ๋‹ค.

braek์— ๊ฑธ๋ฆฌ์ง€ ์•Š๊ณ  ๊ณ„์† ์ง„ํ–‰๋˜๋ฉด ๊ทธ๋ฃน๋‹จ์–ด์ž…๋‹ˆ๋‹ค. 

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