摘要：
/* * 分析： * 贪心+高精度。。。尽量凑3，不足凑2 * * */http://www.lydsy.com/JudgeOnline/problem.php?id=1263import java.util.Scanner;import java.math.*;public class Main{ public static void main(String [] args){ BigInteger ans; BigInteger th = BigInteger.valueOf(3); int n; Scanner cin = new Scanner(System.in); ... 阅读全文