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UVa 11292 Dragon of Loowater

2024-07-19 02:18:18   216人阅读

/*
中文题目   勇士斗恶龙
中文翻译-大意http://download.csdn.net/detail/lingclingc/6563601  详细解释

第一个n表示有几条大龙、第二个数字m表示屠龙勇士的人数，后面有n行表示大龙的血量，m行表示勇士的攻击力也表示向国王要的钱数（能力强的拿钱多），求让国王付出最少的钱
解题思路：将大龙的血量按从小到大排序，同样屠龙勇士的攻击力也要从小到大排序
难点详解：跳出的条件是龙被杀完或者人数不够了。
关键点：排序
解题人：lingnichong
解题时间：2014/08/23   11:44
解题体会：水题
*/

 Dragon of Loowater
Crawling failed
Submit Status Practice UVA 11292

Description

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Problem C: The Dragon of Loowater

Once upon a time, in the Kingdom of Loowater, a minor nuisance turned into a major problem.

The shores of Rellau Creek in central Loowater had always been a prime breeding ground for geese. Due to the lack of predators, the geese population was out of control. The people of Loowater mostly kept clear of the geese. Occasionally, a goose would attack one of the people, and perhaps bite off a finger or two, but in general, the people tolerated the geese as a minor nuisance.

One day, a freak mutation occurred, and one of the geese spawned a multi-headed fire-breathing dragon. When the dragon grew up, he threatened to burn the Kingdom of Loowater to a crisp. Loowater had a major problem. The king was alarmed, and called on his knights to slay the dragon and save the kingdom.

The knights explained: "To slay the dragon, we must chop off all its heads. Each knight can chop off one of the dragon‘s heads. The heads of the dragon are of different sizes. In order to chop off a head, a knight must be at least as tall as the diameter of the head. The knights‘ union demands that for chopping off a head, a knight must be paid a wage equal to one gold coin for each centimetre of the knight‘s height."

Would there be enough knights to defeat the dragon? The king called on his advisors to help him decide how many and which knights to hire. After having lost a lot of money building Mir Park, the king wanted to minimize the expense of slaying the dragon. As one of the advisors, your job was to help the king. You took it very seriously: if you failed, you and the whole kingdom would be burnt to a crisp!

Input Specification:

The input contains several test cases. The first line of each test case contains two integers between 1 and 20000 inclusive, indicating the number n of heads that the dragon has, and the number m of knights in the kingdom. The next n lines each contain an integer, and give the diameters of the dragon‘s heads, in centimetres. The following m lines each contain an integer, and specify the heights of the knights of Loowater, also in centimetres.

The last test case is followed by a line containing:

0 0

Output Specification:

For each test case, output a line containing the minimum number of gold coins that the king needs to pay to slay the dragon. If it is not possible for the knights of Loowater to slay the dragon, output the line:

Loowater is doomed!

Sample Input:

2 3
5
4
7
8
4
2 1
5
5
10
0 0

Output for Sample Input:

11
Loowater is doomed!
Ond?ej Lhoták


#include<stdio.h>
#include<algorithm>
using namespace std;

#define MAXN 20000+10
int a[MAXN],b[MAXN];
int main()
{
	int n,m;
	int i;
	while(scanf("%d%d",&n,&m),n||m)
	{
		for(i=0;i<n;i++)
			scanf("%d",&a[i]);
		for(i=0;i<m;i++)
			scanf("%d",&b[i]);
		sort(a,a+n);
		sort(b,b+m);
		int num=0,cost=0;//当前需要砍掉的头的编号，当前总费用 
		for(i=0;i<m;i++)
			if(b[i] >= a[num])
			{
				cost+=b[i];//雇佣该骑士的费用 
				if(++num==n)   break;//如果头已经砍完，及时退出循环 
			}
		if(num<n)  
			printf("Loowater is doomed!\n");
		else
			printf("%d\n",cost);
	}
	return 0;
}










UVa 11292 Dragon of Loowater


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