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์•Œ๊ณ ๋ฆฌ์ฆ˜/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค

(ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค) ๋ฌธ์ž์—ด ์ถœ๋ ฅํ•˜๊ธฐ

by gomdeng 2024. 11. 27.

๐Ÿถ ๋ฌธ์ œ

๋ฌธ์ž์—ด str ์ด ์ฃผ์–ด์งˆ ๋•Œ, str ์„ ์ถœ๋ ฅํ•˜๋Š” ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•ด ๋ณด์„ธ์š”.

โ—์ œํ•œ์‚ฌํ•ญ
1. 1 ≤ str์˜ ๊ธธ์ด ≤ 1,000,000
2. str์—๋Š” ๊ณต๋ฐฑ์ด ์—†์œผ๋ฉฐ, ์ฒซ์งธ ์ค„์— ํ•œ ์ค„๋กœ๋งŒ ์ฃผ์–ด์ง‘๋‹ˆ๋‹ค.

 

๐Ÿถ ์ž…์ถœ๋ ฅ ์˜ˆ

์ž…๋ ฅ #1
 > HelloWorld!

์ถœ๋ ฅ #1
 > HelloWorld!

 

๐Ÿถ ์†Œ์Šค

str = input()

if ((len(str) >= 1 and len(str) <= 1000000) and str.count(" ") == 0):     
    print(str)
else:
    print("error")

 

๐Ÿถ ํ•จ์ˆ˜

len

์ฃผ์–ด์ง„ ์ปจํ…Œ์ด๋„ˆ์˜ ํ•ญ๋ชฉ ์ˆ˜๋ฅผ ์ •์ˆ˜๋กœ ๋ฐ˜ํ™˜ํ•˜๋Š” ํ•จ์ˆ˜

โ€ป ์ปจํ…Œ์ด๋„ˆ: ๋ฆฌ์ŠคํŠธ, ๋ฌธ์ž์—ด, ํŠœํ”Œ, ๋”•์…”๋„ˆ๋ฆฌ, ์„ธํŠธ ๋“ฑ๊ณผ ๊ฐ™์€ ๋ฐ์ดํ„ฐ ๊ตฌ์กฐ

# ๋ฌธ์ž์—ด์˜ ๊ธธ์ด
length = len("์•ˆ๋…•ํ•˜์„ธ์š”")
print(length)  # 5

 

count

ํŠน์ • ๋ฌธ์ž๋‚˜ ๋ฌธ์ž์—ด์ด ์ฃผ์–ด์ง„ ๋ฌธ์ž์—ด ๋‚ด์— ๋ช‡ ๋ฒˆ ๋‚˜ํƒ€๋‚˜๋Š”์ง€ ์„ธ์–ด์ฃผ๋Š” ํ•จ์ˆ˜

# ๋ฌธ์ž์—ด์—์„œ ๋ฌธ์ž์˜ ์ถœํ˜„ ํšŸ์ˆ˜ ์„ธ๊ธฐ
text = "hello world"
result = text.count('l')  # 'l'์ด ๋‚˜ํƒ€๋‚˜๋Š” ํšŸ์ˆ˜
print(result)  # 3

 

input

์‚ฌ์šฉ์ž๋กœ๋ถ€ํ„ฐ ์ž…๋ ฅ์„ ๋ฐ›์„ ๋•Œ ์‚ฌ์šฉ๋˜๋Š” ํ•จ์ˆ˜

# ์‚ฌ์šฉ์ž์—๊ฒŒ ์ด๋ฆ„์„ ๋ฌป๊ณ  ์ž…๋ ฅ ๋ฐ›๊ธฐ
name = input("๋‹น์‹ ์˜ ์ด๋ฆ„์„ ์ž…๋ ฅํ•˜์„ธ์š”: ")
print(f"์•ˆ๋…•ํ•˜์„ธ์š”, {name}๋‹˜!")