10 lines
177 B
Python
10 lines
177 B
Python
b, bret, bsav, a, asav = map(int, input().split())
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btot = (bret - b) * bsav
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atot = 0
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while True:
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a += 1
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atot += asav
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if atot > btot:
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print(a)
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exit()
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