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  • 杭电1157--Who's in the Middle

         Who's in the Middle

    Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
    Total Submission(s): 11337    Accepted Submission(s): 5362
                                   

    Problem Description
    FJ is surveying his herd to find the most average cow. He wants to know how much milk this 'median' cow gives: half of the cows give as much or more than the median; half give as much or less.

    Given an odd number of cows N (1 <= N < 10,000) and their milk output (1..1,000,000), find the median amount of milk given such that at least half the cows give the same amount of milk or more and at least half give the same or less.
     

     

    Input
    * Line 1: A single integer N

    * Lines 2..N+1: Each line contains a single integer that is the milk output of one cow.
     

     

    Output
    * Line 1: A single integer that is the median milk output.
     

     

    Sample Input
    5 2 4 1 3 5
     

     

    Sample Output
    3
    Hint
    INPUT DETAILS: Five cows with milk outputs of 1..5 OUTPUT DETAILS: 1 and 2 are below 3; 4 and 5 are above 3.
     

     

    Source
     

     

    Recommend
    mcqsmall   |   We have carefully selected several similar problems for you:  1024 1081 1196 1087 1159 
     
    //AC:
     1 #include <stdio.h>
     2 #include <algorithm>
     3 using namespace std ;
     4 int num[10010] ;
     5 int main()
     6 {
     7     int n, i ;
     8     while(~scanf("%d", &n))
     9     {
    10         for(i=0; i<n; i++)
    11         scanf("%d", &num[i]) ;
    12         sort(num, num+n) ;
    13         //printf("INPUT DETAILS:
    
    ") ;
    14         printf("%d
    ", num[n/2]) ;
    15                      
    16     }
    17     return 0 ;
    18 } 
     
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  • 原文地址:https://www.cnblogs.com/soTired/p/4667285.html
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