https://www.acmicpc.net/problem/9008 9008번: Castle Your program is to read from standard input. The input consists of T test cases. The number of test cases T is given in the first line of the input. Each test case starts with integer n, the number of points, where 4 ≤ n ≤ 10,000. Each of the following www.acmicpc.net 사용 알고리즘 깊이 우선 탐색 정렬 풀이 문제의 "the interior angle formed by its two incident edge..