[Python] ๋ฐฑ์ค€ 11047 - ๋™์ „ 0

2020. 8. 12. 22:57ยทAlgorithm

๋ฌธ์ œ

์ค€๊ทœ๊ฐ€ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” ๋™์ „์€ ์ด N์ข…๋ฅ˜์ด๊ณ , ๊ฐ๊ฐ์˜ ๋™์ „์„ ๋งค์šฐ ๋งŽ์ด ๊ฐ€์ง€๊ณ  ์žˆ๋‹ค.

๋™์ „์„ ์ ์ ˆํžˆ ์‚ฌ์šฉํ•ด์„œ ๊ทธ ๊ฐ€์น˜์˜ ํ•ฉ์„ K๋กœ ๋งŒ๋“ค๋ ค๊ณ  ํ•œ๋‹ค.

์ด๋•Œ ํ•„์š”ํ•œ ๋™์ „ ๊ฐœ์ˆ˜์˜ ์ตœ์†Ÿ๊ฐ’์„ ๊ตฌํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค.

 

์ž…๋ ฅ

์ฒซ์งธ ์ค„์— N๊ณผ K๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. (1 ≤ N ≤ 10, 1 ≤ K ≤ 100,000,000)

๋‘˜์งธ ์ค„๋ถ€ํ„ฐ N๊ฐœ์˜ ์ค„์— ๋™์ „์˜ ๊ฐ€์น˜ Ai๊ฐ€ ์˜ค๋ฆ„์ฐจ์ˆœ์œผ๋กœ ์ฃผ์–ด์ง„๋‹ค.

(1 ≤ Ai ≤ 1,000,000, A1 = 1, i ≥ 2์ธ ๊ฒฝ์šฐ์— Ai๋Š” Ai-1์˜ ๋ฐฐ์ˆ˜)

 

์ถœ๋ ฅ

์ฒซ์งธ ์ค„์— K์›์„ ๋งŒ๋“œ๋Š”๋ฐ ํ•„์š”ํ•œ ๋™์ „ ๊ฐœ์ˆ˜์˜ ์ตœ์†Ÿ๊ฐ’์„ ์ถœ๋ ฅํ•œ๋‹ค.


์ •๋‹ต

N, K = map(int, input().split())
coin = []
count = 0

for i in range(N):
   coin.append(int(input()))

for i in range(N-1, -1, -1):
   if K == 0:
      break   
   if coin[i] <= K:
      count += K // coin[i]
      K %= coin[i]

print(count)

 

๋˜ ๋‹ค๋ฅธ ์ •๋‹ต

N, K = map(int, input().split())
coin = []
count = 0

for i in range(N):
   coin.append(int(input()))

for i in range(N-1, -1, -1):
   if K == 0:
      break   
   if coin[i] > K:
      continue
   count += K // coin[i]
   K %= coin[i]
   
print(count)

 

 

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