문제풀이 import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.*; interface Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); StringTokenizer st; Map angle = new HashMap(); int[] len = Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::pa..