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Problem Solving/SWEA

swea. ์ „๊ธฐ๋ฒ„์Šค

by DevIseo 2022. 3. 6.
# k์•ˆ์— ์ •๋ฅ˜์žฅ ์žˆ๋‚˜? - ํ•จ์ˆ˜ ๋งŒ๋“ค๊ธฐ
def drive(k,n,m):
    now = 0
    next = k
    result = 0
 
    while next < n: # ๋‹ค์Œ ์ •๋ฅ˜์žฅ < ์ตœ๋Œ€ ๊ฑฐ๋ฆฌ
        while bus[next] == 0: # ๋ฒ„์Šค์ •๋ฅ˜์žฅ์ด ์ถฉ์ „์†Œ๊ฐ€ ์•„๋‹˜
            next-=1 # ๋’ค๋กœ ํ•œ์นธ์”ฉ
            if next == now: #๋’ค๋กœ ๊ฐ€๋‹ค๊ฐ€ ํ˜„์žฌ ์œ„์น˜์™€ ๊ฐ™์•„์ง€๋ฉด
                return 0 # ์ข…์ ์— ๋„์ฐฉ ๋ถˆ๊ฐ€
        now = next 
        next += k
        result += 1 # ์ตœ์†Œํ•œ์˜ ์ถฉ์ „ ํšŸ์ˆ˜
    return result
 
T = int(input())
for tc in range(1,T+1):
    # k ๋…ธ์„ ์ˆ˜,n ์ตœ๋Œ€ํ•œ ๊ฐˆ ์ˆ˜ ์žˆ๋Š” ๊ฑฐ๋ฆฌ, m ์ถฉ์ „์†Œ
    k,n,m = map(int,input().split())
    # ์ถฉ์ „์†Œ ์œ„์น˜
    charge = list(map(int,input().split()))
    # ๋ฒ„์Šค ์ •๋ฅ˜์žฅ
    bus = [0]*n
    # ๋ฒ„์Šค ์ •๋ฅ˜์žฅ์— ์ถฉ์ „์†Œ ์ฒดํฌ
    for o in charge:
        bus[o] = 1
    # ์ถœ๋ ฅ
    print(f'#{tc} {drive(k,n,m)}')

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