河南省第三届acm省赛 AMAZING AUCTION

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描述

Recently the auction house has introduced a new type of auction, the lowest price auction. In this new system, people compete for the lowest bid price, as opposed to what they did in the past. What an amazing thing! Now you could buy cool stuff with one penny. Your task is to write the software to automate this auction system. 

First the auctioneer puts an upper limit on bid price for each item. Only positive price less than or equal to this price limit is a valid bid. For example, if the price limit is 100, then 1 to 100, inclusive, are all valid bid prices. Bidder can not put more than one bid for the same price on a same item. However they can put many bids on a same item, as long as the prices are different. 

After all bids are set, the auctioneer chooses the winner according to the following rules:

(1). If any valid price comes from only one bidder, the price is a "unique bid". If there are unique bids, then the unique bid with the lowest price wins. This price is the winning price and the only bidder is the winning bidder.

(2). If there are no unique bids, then the price with fewest bids is the winning bid. If there are more than one price which has the same lowest bid count, choose the lowest one. This price is the winning price. The bidder who puts this bid first is the winning bidder. 

Given the price limit and all the bids that happen in order, you will determine the winning bidder and the winning price. 

输入

There are multi test cases.EOF will terminate the input.
The first line contains two integers: U (1 <= U <= 1000), the price upper limit and M (1 <= M <= 100), the total number of bids. M lines follow, each of which presents a single bid. The bid contains the bidder‘s name (consecutive non-whitespace characters<=5) and the price P (1 <= P <= U), separated with a single space. All bids in the input are guaranteed to be valid ones.

输出

Print the sentence "The winner is W" on the first line, and "The price is P" on the second. 

样例输入

30 7                                

 Mary 10                             

 Mary 20

Mary 30

Bob 10

Bob 30

Carl 30

Alice 23

样例输出

The winner is Mary

The price is 20

来源

第三届河南省程序设计大赛

上传者

ACM_赵铭浩

题意：

先找出现一次的如果出现1次的有多个，那么输出较小的那个

如果出现次数大于一个的话，就输出较小的那个。

#include <cstdio>


int a[1006];
struct node
{
    char name[100];
    int price;


}e[200];
int u, m;
int main()
{
    while(~scanf("%d %d", &u, &m))
    {
        for(int i = 1; i <= u; i++)
            a[i] = 0;
        for(int i = 1; i <= m; i++)
        {
            scanf("%s %d", e[i].name, &e[i].price);
            a[e[i].price]++;//统计价钱出现的次数
        }
        int pos = 0, P = -1;
        for(int i = 1; i <= u; i++)
        {
            if(a[i] == 1)
            {
                 pos = 1;
                P = i;
                break;
            }
        }
        if(pos == 1)
            for(int i = 1; i <= m; i++)
            {
                if(e[i].price == P)//
                {
                    printf("The winner is %s\n", e[i].name);
                    printf("The price is %d\n", e[i].price);
                    break;
                }
            }
        else
        {
            int KKK = -1;
            for(int i = 1; i <= u; i++)
            {
                if(a[i] >= 2)
                {
                    KKK = i;//记录下表。
                }
            }//找出现多次价钱最小的一次。
            for(int i = 1; i <= m; i++)
            {
                if(e[i].price == KKK)//
                {
                    printf("The winner is %s\n", e[i].name);
                    printf("The price is %d\n", e[i].price);
                    break;
                }
            }
        }
    }


    return 0;
}

河南省第三届acm省赛 AMAZING AUCTION

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原文地址：http://blog.csdn.net/zs520ct/article/details/51360343