#1157 ๋‹จ์–ด๊ณต๋ถ€๐ŸŽ‡

sso0_zยท2023๋…„ 2์›” 25์ผ
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์ฝ”๋“œ๐Ÿ’ป

st = input().lower() # mississipi
st2 = set(st)		 # m, i, s, p
array = []

for i in st2:
  array.append(st.count(i))  # 1, 4, 4, 1

if array.count(max(array)) > 1:
  print('?')
else:
  st2 = list(st2)
  print(st2[array.index(max(array))].upper())

ํ’€์ด๐Ÿ’ก

  1. st๋กœ ์•ŒํŒŒ๋ฒณ์„ ์ž…๋ ฅ๋ฐ›์Œ
    • ์†Œ๋ฌธ์ž๋กœ ๋ฐ”๊ฟ”์ฃผ๊ธฐ ์œ„ํ•ด lower() ์‚ฌ์šฉ
  2. set์„ ์‚ฌ์šฉํ•˜์—ฌ ์ค‘๋ณต์„ ์ œ๊ฑฐํ•œ ๋ฌธ์ž์—ด st2์„ ์ถ”๊ฐ€๋กœ ์ƒ์„ฑ
  3. ๋ฐ˜๋ณต๋ฌธ์„ ์ด์šฉํ•˜์—ฌ ๋ฌธ์ž์—ด ๊ฐฏ์ˆ˜๋ฅผ array ๋ฐฐ์—ด์— ์ €์žฅ
  4. ๊ฐ€์žฅ ๋งŽ์ด ์‚ฌ์šฉ๋œ ์•ŒํŒŒ๋ฒณ์ด ๋™์ผํ•œ ๊ฒฝ์šฐ, ?๋ฅผ print
  5. ๊ทธ๋ ‡์ง€ ์•Š์€ ๊ฒฝ์šฐ, array ์ตœ๋Œ“๊ฐ’์˜ ์ธ๋ฑ์Šค๋ฅผ st2์—์„œ print
    • ๋Œ€๋ฌธ์ž๋กœ ๋ฐ”๊ฟ”์ฃผ๊ธฐ ์œ„ํ•ด upper() ์‚ฌ์šฉ
    • set์€ ๋ถ„๋ฆฌ๊ฐ€ ๋ถˆ๊ฐ€๋Šฅํ•˜๊ธฐ์— st2๋ฅผ list๋กœ ๋ฐ”๊ฟ”์ค€ ํ›„ print

์ฐธ๊ณ ๐Ÿ™

๐Ÿ‘‰ [๋ฐฑ์ค€] 1157๋ฒˆ: ๋‹จ์–ด ๊ณต๋ถ€ - ํŒŒ์ด์ฌ

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