```cpp
#include<bits/stdc++.h>
using namespace std;
struct fs
{
int xh;
float num;
};
fs a[5001];
int cmp(const fs &a,const fs &b)
{
return a.num>b.num;
}
int main()
{
int i,x,m,n,fx;
cin>>n>>m;
for(i=1;i<=n;i++)
cin>>a[i].xh>>a[i].num;
sort(a,a+n+1,cmp);
x=m*1.5;
while(a[x].num==a[x+1].num)
{
x++;
fx=a[x+1].num;
}
fx=a[x].num;
cout<<fx<<" "<<x<<endl;
for(i=1;i<=x;i++)
cout<<a[i].xh<<" "<<a[i].num<<endl;
return 0;
}
```
by lckcode @ 2018-07-24 18:22:00
已經幫你改了。
所有跟a[x].num一樣的都能夠，要用while loop
by lckcode @ 2018-07-24 18:22:57
@[lckcode](/space/show?uid=73224) 谢谢
by 最帅滴打劫君 @ 2018-08-24 10:33:15