[20250319] BOJ / 골드1 / 구간합 구하기 / 이강현 #261
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🧷 문제 링크
https://www.acmicpc.net/problem/2042
🧭 풀이 시간
30분
👀 체감 난이도
✏️ 문제 설명
구간 합 구하기!
🔍 풀이 방법
세그먼트 트리
⏳ 회고
개념 자체는 그닥 어렵지 않음. 근데 여러가지로 응용되면 확 어려워질 것 같은 느낌?