[20250808] BOJ / G5 / 1, 2, 3 더하기 4 / 김수연 #631
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🧷 문제 링크
https://www.acmicpc.net/problem/15989
🧭 풀이 시간
15분
👀 체감 난이도
✏️ 문제 설명
정수 n을 1, 2, 3의 합으로 나타내는 방법의 수 구하기
🔍 풀이 방법
dp사용해서 1 사용 했을 때 경우 2, 3 사용했을 때 경우 차례로 더해줌
⏳ 회고
세상 dp들이 다 이랬으면..