Submission #366886

#	Time	Username	Problem	Language	Result	Execution time	Memory
366886		haboh	Cooking (innopolis2018_final_B)	Cpython 3	100 / 100	22 ms	3052 KiB

B

k, d, t = map(int,input().split())

q = k // d
if k % d != 0:
    q += 1

cyc = q * d
hot = k
cold = cyc - k


x = (2 * t) // (2 * hot + cold)


T = x * (hot + cold)
left = 1 - x * hot / t - x * cold / (2 * t)

if hot / t >= left:
    T += left * t
else:
    T += hot
    left -= hot / t
    T += left * 2 * t
print("%.9lf" % T)
    

• Subtask 1: 24 / 24
• Subtask 2: 21 / 21
• Subtask 3: 27 / 27
• Subtask 4: 28 / 28