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[Baekjoon] 1715๋ฒ : ์นด๋ ์ ๋ ฌํ๊ธฐ python ๋ณธ๋ฌธ
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https://www.acmicpc.net/problem/1715
์ค๊ณ ๋ฐฉ๋ฒ
๋น๊ต ํ์๊ฐ ๊ฐ์ฅ ์์ผ๋ ค๋ฉด ๊ฐ์ฅ ์์ ๊ฐ๋ค๋ถํฐ ๋จผ์ ๊ณ์ฐํด์ผ ํ๋ค.
๋จ ํ๋์ ๊ฐ์ด ๋จ์ ๋๊น์ง ๊ฐ์ฅ ์์ ๊ฐ 2๊ฐ๋ฅผ ๊ณ์ฐ, ์ถ๊ฐ ๊ทธ๋ฆฌ๊ณ ์ ์ฅ์ ๋ฐ๋ณตํ๋ค.
์ผ๋ฐ์ ์ธ ๋ฐฐ์ด๋ก ์ฒ๋ฆฌํ ๊ฒฝ์ฐ ์๊ฐ ์ด๊ณผ๊ฐ ๋ฐ์ํ๋ค.
์ ๋ ฌํ๋ ๊ณผ์ ์ ์ฐ์ ์์ ํ์ ๋งก๊ฒจ์ฃผ๋ฉด ํด๊ฒฐ
์ฝ๋
์๊ฐ์ด๊ณผ ์ฝ๋
import sys
input = sys.stdin.readline
n = int(input())
card = []
for i in range(n):
card.append(int(input()))
sub = 0
card.sort()
for i in range(1,n):
sub += sum(card[:i+1])
print(sub)
ํ๋ ธ์ต๋๋ค..
import sys
input = sys.stdin.readline
n = int(input())
card = []
for i in range(n):
card.append(int(input()))
sub = [0] * (n+1)
card.sort()
sub[0] = card[0]
for i in range(1,n):
sub[i] = sub[i-1] + card[i]
print(sum(sub[1:]))
๐ซ ์ ๋ต ์ฝ๋
์ฐ์ ์์ํ๋ก ํธ๋๊ฑฐ์์ ใ ใ
import heapq
import sys
input = sys.stdin.readline
n = int(input())
card = [int(input()) for _ in range(n)]
heapq.heapify(card)
c = 0
s = 0
while len(card) > 1:
n1 = heapq.heappop(card)
n2 = heapq.heappop(card)
c = n1 + n2
s += c
heapq.heappush(card, c)
print(s)
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