Sticks Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9414 Accepted Submission(s): 2776 Problem Description George took sticks of the same length and cut them randomly until all parts became…
题目的意思就是在1到n的所有序列之间,找出所有相邻的数相加是素数的序列.Ps:题目是环,所以头和尾也要算哦~ 典型的dfs,然后剪枝. 这题目有意思的就是用java跑回在tle的边缘,第一次提交就tle了(服务器负载的问题吧),一模一样的第二次提交就ac了,侧面也反应了递归对stack的开销影响效率也是严重的.好了,上代码!! 题目传送门: HDU_1016 import java.util.Scanner; public class Main { public static final int…
Sticks Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1455 Description George took sticks of the same length and cut them randomly until all parts became at most 50 units long. Now he wants to…
题目描述: Description Given a specified total t and a list of n integers, find all distinct sums using numbers from the list that add up to t. For example, if t = 4, n = 6, and the list is [4, 3, 2, 2, 1, 1], then there are four different sums that equal…
Red and Black Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 19731 Accepted Submission(s): 11991 Problem Description There is a rectangular room, covered with square tiles. Each tile is col…