문제
You know a family with three children.
Their ages form an arithmetic sequence: the difference in ages between the middle child and youngest child is the same as the difference in ages between the oldest child and the middle child.
For example, their ages could be 5, 10 and 15, since both adjacent pairs have a difference of 5 years.
Given the ages of the youngest and middle children, what is the age of the oldest child?
https://www.acmicpc.net/problem/6749
6749번: Next in line
You know a family with three children. Their ages form an arithmetic sequence: the difference in ages between the middle child and youngest child is the same as the difference in ages between the oldest child and the middle child. For example, their ages c
www.acmicpc.net
입력
The input consists of two integers, each on a separate line.
The first line is the age Y of the youngest child (0 ≤ Y ≤ 50).
The second line is the age M of the middle child (Y ≤ M ≤ 50).
출력
The output will be the age of the oldest child.
예제
# input
12
15
# output
18문제 풀이
Y = int(input())
M = int(input())
print(2 * M - Y)파이썬을 독학하시는 분들에게 도움이 되길 바라며,
혹 더 좋은 방법이 있거나 오류가 있다면 편하게 말씀 부탁드립니다.
