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🧷 문제 링크
https://www.acmicpc.net/problem/2143
🧭 풀이 시간
50분
👀 체감 난이도
✏️ 문제 설명
두 배열의 합을 통해 T를 만들 수 있는 경우의 수를 구하라. 대산 부 배열의 합도 고려하라.
🔍 풀이 방법
각 배열의 누적합을 통해 미리 합에 대한 값을 계산하고, 이분 탐색을 통해 T를 만들 수 있는 경우의 수를 구한다.
⏳ 회고
이분 탐색에 고려해야 하는 수치는 단순 배열 범위만이 아니다. 그리고 문제를 잘 읽자. 부 배열은 순차적이다.