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🧷 문제 링크
https://www.acmicpc.net/problem/1484
🧭 풀이 시간
20분
👀 체감 난이도
✏️ 문제 설명
G가 주어짐.
G는 성원이의 현재 몸무게의 제곱에서 기억하고 있는 몸무게의 제곱을 뺀것임.
이때 가능한 현재 몸무게를 모두 출력.
🔍 풀이 방법
수학
(x-y)(x+y) = G라는 공식인데
G의 약수를 구하기
이때 x와 y각각이 자연수가 되려면 x-y와 x+y가 짝수가 되어야 한다.
⏳ 회고
x와 y각각이 자연수가 되려면 x-y와 x+y가 짝수여야 한다는것을 몰라서 못풀었다.