[20250808] BOJ / G5 / 1, 2, 3 더하기 4 / 이강현 #629
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🧷 문제 링크
https://www.acmicpc.net/problem/15989
🧭 풀이 시간
10분
👀 체감 난이도
✏️ 문제 설명
1,2,3을 이용해서 n을 만드는 경우의 수
🔍 풀이 방법
dp
1+2와 2+1은 같으니 1,2,3 각각에 대해 n만큼에 대해서 누적으로 더하면 됨.
⏳ 회고
앙 동전띠