题面 有一个a数组,里面有n个整数.现在要从中找到两个数字(可以是同一个) ai,aj ,使得 ai mod aj 最大并且 ai ≥ aj. Input 单组测试数据. 第一行包含一个整数n,表示数组a的大小.(1 ≤ n ≤ 2*10^5) 第二行有n个用空格分开的整数ai (1 ≤ ai ≤ 10^6). Output 输出一个整数代表最大的mod值. Input示例 3 3 4 5 Output示例 2 对每个数,枚举它的所有倍数,找到比这个倍数小并且最接近这个倍数的数,更新ans. 是
油田问题(L - 暴力求解.DFS) Description The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides the land into numerou
jrMz and angle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) 问题描述 jrMz有两种角,第一种角都是正nn边形的内角,第二种角都是正mm边形的内角.jrMz想选出其中一些,某种角可以选多个或一个都不选,使得选出的所有角的度数之和恰好为360度.jrMz想知道这是否可能实现. 输入描述 有多组测试数据,第一行一个整数\left(1\leq T\leq10
Problem Description Avin is studying series. A series is called "wave" if the following conditions are satisfied:1) It contains at least two elements;2) All elements at odd positions are the same;3) All elements at even positions are the same;4)
Encoding 链接:http://acm.hdu.edu.cn/showproblem.php?pid=1020 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 55038 Accepted Submission(s): 24576 Problem Description Given a string containing on
id=17433" target="_blank" style="color:blue; text-decoration:none">An easy problem Time Limit: 3000MS Memory Limit: 32768KB 64bit IO Format: %I64d & %I64u Submit Status Description When Teddy was a child , he was always
题目: A tremendously exciting raffle is being held, with some tremendously exciting prizes being given out. All you have to do to have a chance of being a winner is to put a piece of paper with your name on it in the raffle box. The lucky winners of th
Description A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle should always be 1. Inp
素数环(暴力)(紫书194页) Description A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle shoul