HPU-ACM暑期培训第2周14级个人赛：Problem I The least one HDU 1795

Problem I

Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 556    Accepted Submission(s): 213

Problem Description

  In the RPG game “go back ice age”(I decide to develop the game after my undergraduate education), all heros have their own respected value, and the skill of killing monsters is defined as the following rule: one hero can kill the monstrers whose respected values are smaller then himself and the two respected values has none common factor but 1, so the skill is the same as the number of the monsters he can kill. Now each kind of value of the monsters come. And your hero have to kill at least M ones. To minimize the damage of the battle, you should dispatch a hero with minimal respected value. Which hero will you dispatch ? There are Q battles, in each battle, for i from 1 to Q, and your hero should kill Mi ones at least. You have all kind of heros with different respected values, and the values(heros’ and monsters’) are positive.

 

Input

  The first line has one integer Q, then Q lines follow. In the Q lines there is an integer Mi, 0<Q<=1000000, 0<Mi<=10000.

 

Output

  For each case, there are Q results, in each result, you should output the value of the hero you will dispatch to complete the task.

 

Sample Input

   
   
   
   

    
    
    
    2
3
7
   
   
   
   

 

Sample Output

   
   
   
   

    
    
    
    5
11
   
   
   
   

 

Author

wangye

 

题意：

          有一个游戏，游戏中的英雄能够将比他能量少的怪兽杀掉并且要求这个怪兽的能量与英雄的能量之间没有公因数，而且一个英雄至少可以杀掉输入的怪兽的能量值的个数的怪

 

兽，也就是能将小于等于输入怪兽能量值小的怪兽全杀掉，又因为要求要求这个怪兽的能量与英雄的能量之间没有公因数，所以要求英雄的能量值必须是素数，并且比怪兽的能量值

 

要大！注：怪兽的能量值可以不是素数！

AC-code:

#include<cstdio>
#include<cmath>
int main()
{
	int n,m,j,k;
	scanf("%d",&n);
	while(n--)
	{
		scanf("%d",&m);
		for(j=m+1;j<10100;j++)
		{
			int flag=0;
			for(k=2;k<=(int)sqrt(j);k++)
			{
				if(j%k==0)
				{
					flag=1;
					break;
				}
			}
			if(!flag)
			{
				printf("%d\n",j);
				break;
			}	
		}
	}
	return 0;
}