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캠프 준비 / 골드5 / 15분 / O #381

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17 changes: 17 additions & 0 deletions week24/BOJ_16938/캠프 준비_홍지훈.py
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Original file line number Diff line number Diff line change
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import sys, itertools
input = sys.stdin.readline

N, L, R, X = map(int, input().rstrip().split()) # N: 문제의 수, L <= 문제 난이도의 합 <= R, 가장 어려운 문제 - 가장 쉬운 문제 난이도 차이 >= X
difficulty = list(map(int, input().rstrip().split()))
result = 0

for n in range(2, N + 1):
cases = list(itertools.combinations(difficulty, n))

for problems in cases:
min_prob = min(problems)
max_prob = max(problems)
if R >= sum(problems) >= L and max_prob - min_prob >= X:
result += 1

print(result)