01:谁考了第k名 个人博客：doubleq.win

5 3
90788001 67.8
90788002 90.3
90788003 61
90788004 68.4
90788005 73.9

90788004 68.4

 1 #include<iostream>
 2 #include<algorithm>
 3 #include<cstdio>
 4 using namespace std;
 5 int n,k;
 6 struct s
 7 {
 8     int xh;
 9     double cj;
10 }a[1001];
11 int comp(const s &a,const s &b)
12 {
13     return a.cj>b.cj;
14 }
15 int main()
16 {
17     cin>>n>>k;
18     for(int i=1;i<=n;i++)
19     {
20         cin>>a[i].xh;
21         cin>>a[i].cj;
22     }
23     sort(a+1,a+n+1,comp);
24     printf("%d ",a[k].xh);
25     printf("%g",a[k].cj);
26     return 0;
27 }