ABC169 C - Multiplication 3

提出

code: python

import math

a, b = input().split()

print(math.floor(int(a) * (float(b) * 100) // 100))

解答

code: python

from math import floor

from fractions import Fraction

a, b = input().split()

a = int(a)

b = Fraction(b)

print(floor(a * b))

メモ