试题 E: 回路计数 蓝桥杯 Java 2021省赛A组
package javaa2021;import java.util.ArrayList;import java.util.HashMap;import java.util.HashSet;public class pe3 { static int n = 21; static int huzhi = 1; static int buhuzhi = 0; static ArrayList<Integer> list[]; static int[] yifanru =
