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[AtCoder]ABC-134|B - Golden Apple
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提出結果
def getIntMap():
return map(int, input().split())
def main():
n, d = getIntMap()
c = 2 * d + 1
print(n // c + (0 if n % c == 0 else 1))
if __name__ == "__main__":
main()
def getIntMap():
return map(int, input().split())
def main():
n, d = getIntMap()
c = 2 * d + 1
print(n // c + (0 if n % c == 0 else 1))
if __name__ == "__main__":
main()
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