[20251222] BOJ / P3 / 수열의 개수 NKD / 권혁준#1727
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ShinHeeEul merged 1 commit intomainfrom Dec 22, 2025
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🧷 문제 링크
https://www.acmicpc.net/problem/1336
🧭 풀이 시간
60분
👀 체감 난이도
✏️ 문제 설명
아래 조건을 만족하는 길이 K인 자연수 수열 A의 개수를 구해보자.
🔍 풀이 방법
K > 446이면? 못 만듬.
dp[k][s] = s번 돌까지 k개의 돌을 지나온 경우의 수라고 정의.
dp[1][x] = 1 (1 <= x <= D)
내가 현재 s번 돌에 있다면, 2s+1부터 2s+D까지 갈 수 있음
-> imos로 다음 스텝의 DP값을 계산하도록.
⏳ 회고
아오 왜 틀리는거야