ABC139 B - Power Socket

提出

code: python

a, b = list(map(int, input().split()))

ans = 0

unused = 0

first = True

if (b == 1):

print(0)

else:

while(unused < b):

if (first):

unused += a

first = False

else:

unused += a - 1

ans += 1

print(ans)

メモ