[Python] ๋ฐฑ์ค€ 10984 - ๋‚ด ํ•™์ ์„ ๊ตฌํ•ด์ค˜

2020. 8. 24. 02:02ยทAlgorithm

๋ฌธ์ œ

๊ฒŒ์œผ๋ฅธ ๊ทผ์šฐ๋Š” ์—ด์‹ฌํžˆ ๋†€๋‹ค๊ฐ€ ๋ฌธ๋“, ์ž์‹ ์˜ ํ•™์  ํ‰๊ท ์ด ์–ผ๋งˆ์ผ์ง€ ๊ถ๊ธˆํ•ด์กŒ๋‹ค. ํ•™์‚ฌ์‹œ์Šคํ…œ๋„ ๋“ค์–ด๊ฐ€๊ธฐ ๊ท€์ฐฎ์•„ํ•˜๋Š” ๊ทผ์šฐ๋ฅผ ์œ„ํ•ด ๊ตฌํ•ด์ฃผ๋„๋ก ํ•˜์ž. 

 

์ž…๋ ฅ

์ฒซ ๋ฒˆ์งธ ์ค„์— ํ•™๊ธฐ์˜ ์ˆ˜ T๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ๋‘ ๋ฒˆ์งธ ์ค„๋ถ€ํ„ฐ T๊ฐœ ํ•™๊ธฐ์— ๋Œ€ํ•œ ์ •๋ณด๊ฐ€ ์ฃผ์–ด์ง„๋‹ค.

๊ฐ ํ•™๊ธฐ์— ๋Œ€ํ•œ ์ •๋ณด๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋‹ค. ์ฒซ ๋ฒˆ์งธ ์ค„์— ๋“ค์—ˆ๋˜ ๊ณผ๋ชฉ์˜ ์ˆ˜ N์ด ์ฃผ์–ด์ง€๊ณ , ๋‹ค์Œ N๊ฐœ ์ค„์— ๊ฑธ์ณ์„œ N๊ฐœ ๊ณผ๋ชฉ๋“ค์˜ ํ•™์  C์™€ ์„ฑ์  G๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. (1 ≤ N ≤ 10, 1 ≤ C ≤ 6, C๋Š” ์ •์ˆ˜) G๋Š” {0, 0.7, 1, 1.3, 1.7, 2, 2.3, 2.7, 3, 3.3, 3.7, 4, 4.3} ์ค‘ ํ•˜๋‚˜์ด๋ฉฐ ์†Œ์ˆ˜ ๋ถ€๋ถ„์€ ์ตœ๋Œ€ ํ•œ ์ž๋ฆฌ๊นŒ์ง€ ์ฃผ์–ด์ง„๋‹ค.

 

์ถœ๋ ฅ

๊ฐ ํ•™๊ธฐ์— ๋Œ€ํ•ด ๊ทผ์šฐ์˜ ์ด ํ•™์ ๊ณผ ํ‰์ (GPA)์„ ์ถœ๋ ฅํ•œ๋‹ค. ์ •๋‹ต๊ณผ์˜ ์ ˆ๋Œ€ ์˜ค์ฐจ๋Š” 10-1๊นŒ์ง€ ํ—ˆ์šฉํ•œ๋‹ค.


์ •๋‹ต

t = int(input()) 

for i in range(t):
   n = int(input())
   credit = 0
   gpa = 0
   
   for j in range(n):
      c, s = map(str, input().split())
      credit += int(c)
      gpa += float(c) * float(s)
      
   print(credit, round(gpa / credit, 1))

์ฐธ๊ณ 

round() ํ•จ์ˆ˜๋Š” ๋ฐ˜์˜ฌ๋ฆผํ•˜๋Š” ํŒŒ์ด์ฌ์˜ ๋‚ด์žฅํ•จ์ˆ˜์ด๋‹ค.

round(3.141592) #๊ฒฐ๊ณผ 3

round(3.141592, 2) #๊ฒฐ๊ณผ 3.14

 

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[Python] ๋ฐฑ์ค€ 10984 - ๋‚ด ํ•™์ ์„ ๊ตฌํ•ด์ค˜
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