[20251108] BOJ / G5 / Hello World! / 이강현 #1350
Merged
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🧷 문제 링크
https://www.acmicpc.net/problem/13140
🧭 풀이 시간
20분
👀 체감 난이도
✏️ 문제 설명
N을 입력받고 서로 다른 숫자 h,e,l,o,w,r,d가 있을때, 위와 같은 형태가 만족하는 경우를 구하라.
🔍 풀이 방법
숫자가 7가지고 각각 0~9까지 있으므로 경우의 수는 10의 7승이다.
백트래킹으로 풀었다.
⏳ 회고
backtracking의 인자로 끝났음을 나타내는 플래그를 넣지 말 것.(어차피 리턴하면 반영이 안됨.)
사실 로직은 쉬웠으나 출력 형식이 맞지 않아 여러번 틀렸다.