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Sale（水题）

2024-08-02 07:17:10   222人阅读

Sale
Crawling in process...Crawling failedTime Limit:2000MS    Memory Limit:262144KB     64bit IO Format:%I64d & %I64u
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Description

Once Bob got to a sale of old TV sets. There were n TV sets at that sale. TV set with indexi costs ai bellars. Some TV sets have a negative price — their owners are ready to pay Bob if he buys their useless apparatus. Bob can ?buy? any TV sets he wants. Though he‘s very strong, Bob can carry at most m TV sets, and he has no desire to go to the sale for the second time. Please, help Bob find out the maximum sum of money that he can earn.

Input

The first line contains two space-separated integers n andm (1?≤?m?≤?n?≤?100) — amount of TV sets at the sale, and amount of TV sets that Bob can carry. The following line containsn space-separated integers ai (?-?1000?≤?ai?≤?1000) — prices of the TV sets.

Output

Output the only number — the maximum sum of money that Bob can earn, given that he can carry at mostm TV sets.

Sample Input

Input 
5 3
-6 0 35 -2 4
Output 
8
Input 
4 2
7 0 0 -7
Output 
7

题意：n台旧电视，每台a[i]元，Bob只能收购m台，求赚的最大钱


#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include <algorithm>
using namespace std;
int main()
{
    int n,m,i;
    int a[110];
    int sum=0;
    while(~scanf("%d %d",&n,&m))
    {
        sum=0;
        for(i=0;i<n;i++)
            scanf("%d",&a[i]);
        sort(a,a+n);
        for(i=0;i<m;i++)
        {
            if(a[i]<0)
                sum+=a[i];
        }
        sum=fabs(sum);
        printf("%d\n",sum);
    }
    return 0;
}


Sale（水题）


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