UVA_11292_Dragon of Loowater

#include<iostream>
#include<sstream>
#include<string>
#include<vector>
#include<list>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<algorithm>
#pragma warning(disable:4996)
#include<cstdio>
#include<cstdlib>
using std::cin;
using std::cout;
using std::endl;
using std::stringstream;
using std::string;
using std::vector;
using std::list;
using std::pair;
using std::set;
using std::multiset;
using std::map;
using std::multimap;
using std::stack;
using std::queue;
using std::priority_queue;
int main()
{
	//freopen("input.txt", "r", stdin);  
	//freopen("output.txt", "w", stdout);  
	int n, m;
	while (cin >> n >> m && (n + m))
	{
		vector<int>dragon(n), knight(m);
		for (int i = 0; i < n; i++)
		{
			cin >> dragon[i];
		}
		for (int i = 0; i < m; i++)
		{
			cin >> knight[i];
		}
		if (n > m)//如果龍的數量大於騎士的數量，顯然屠龍失敗
		{
			cout << "Loowater is doomed!" << endl;
			continue;
		}
		std::sort(dragon.begin(), dragon.end());
		std::sort(knight.begin(), knight.end());
		int cost = 0, killed = 0;
		for (int i = 0,j=0;i<n&&j<m;j++)
		{
			if (dragon[i] <= knight[j])//如果龍的血量小於等於騎士的戰鬥力,即屠龍成功
			{
				cost += knight[j];
				i++;//跳到下一條龍
				killed++;//屠龍數+1
			}
		}
		//如果屠龍數量==龍的數量,輸出已屠龍的數量
		if (killed == n)
		{
			cout << cost << endl;
		}
		else
		{
			cout << "Loowater is doomed!" << endl;
		}
	}
	return 0;
}