[20251101] BOJ / G4 / Elder price robot / 김민진#1289
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ShinHeeEul merged 1 commit intomainfrom Nov 1, 2025
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🧷 문제 링크
Elder price robot
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
특정 날을 기준으로 가격이 같거나 저렴했던 날의 차 구하기
없으면
infinity출력🔍 풀이 방법
인덱스를 스택에 넣고 배열을 역순으로 순회하면서 같거나 낮은 가격을 가리키는 인덱스가 나올 때까지
pop()반복문 종료 후 스택에 아무것도 없으면
infinity있으면peek()한 값이ans에 들어감⏳ 회고
스택 어려워~~..