#include<bits/stdc++.h>
using namespace std;
int n,k;
struct exam{
	long long no;
	double sc;
};
bool a(exam x,exam y){
	return !(x.sc<y.sc);
}
int main(){
	cin>>n>>k;
	exam s[105];
	for(int i=0;i<n;i++){
		cin>>s[i].no>>s[i].sc;
	}
	sort(s,s+n,a);
	cout<<s[k-1].no<<' '<<s[k-1].sc;
	return 0;
}

烧脑

#include<bits/stdc++.h>
using namespace std;
int n,k;
struct cs{
   long long numb;
   double fen;
};
cs ex[110];//一定要定义在外面不然会神秘Ac8Wa2
int sorrt(cs a,cs b){
   if(a.fen==b.fen and a.numb>b.numb){swap(a.numb,b.numb);return 1;}
   else if(a.fen>b.fen){swap(a.numb,b.numb); return 1;}
   else return 0;
}
int main(){
   cin>>n>>k;
   for(int i=0;i<n;i++){
      cin>>ex[i].numb;
      cin>>ex[i].fen;
      sort(ex,ex+n,sorrt);
   }
   cout<<ex[k-1].numb<<' '<<ex[k-1].fen;
   return 0;
}

#include <bits/stdc++.h>
#include <algorithm>
using namespace std;
struct student{
	int no;
	float score;
};
bool cmp(student b,student c){
	if (b.score < c.score){
		return false;
	}else{
		return true;
	}
}
int main(int argc, char **argv){
	int n,k;student s[105];
	cin >> n >> k;
	for (int i = 0;i < n;i++){
		cin >> s[i].no >> s[i].score;
	}
	sort(s,s + n,cmp);
	printf("%d %g",s[k - 1].no,s[k - 1].score);
	return 0;
}

//数组版
#include <bits/stdc++.h>
using namespace std;
int n, k;
int id[111];//名字 
double score[111];//分数 
int main()
{
	cin >> n >> k;
	for(int i = 0; i < n; i++)
	{
		cin >> id[i] >> score[i];
	}
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n-i-1; j++)//n-i-1,只和前面的比 
		{
			if(score[j] < score[j+1])//成绩更高 
			{
				swap(score[j], score[j+1]);//交换 
				swap(id[j], id[j+1]);//交换 
			}
		}
	}
	cout << id[k-1] << " " << score[k-1];
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
int n,k;
struct exam{
	long long no;
	double sc;
}s[105];
bool a(exam x,exam y){
	return x.sc>=y.sc;
}
int main(){
	cin>>n>>k;
	for(int i=0;i<n;i++) cin>>s[i].no>>s[i].sc;
	sort(s,s+n,a);
	cout<<s[k-1].no<<" "<<s[k-1].sc;
	return 0;
}

//结构体版
#include <bits/stdc++.h>
using namespace std;
int n, k;
struct{
	
	int id;//名字 
	double score;//分数 
}stu[111];

int main()
{
	cin >> n >> k;
	for(int i = 0; i < n; i++)
	{
		cin >> stu[i].id >> stu[i].score;
	}
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n-i-1; j++)//n-i-1,只和前面的比 
		{
			if(stu[j].score < stu[j+1].score)//成绩更高 
			{
				swap(stu[j].score, stu[j+1].score);//交换 
				swap(stu[j].id, stu[j+1].id);//交换 
			}
		}
	}
	cout << stu[k-1].id << " " << stu[k-1].score;
	return 0;
}

#include<iostream>
using namespace std;
int n,k;
struct student {//定义结构体 
	int num;//学号 
	float score;//分数 
}a[101];//开数组 
int main() {
	cin>>n>>k;
	for(int i=0;i<n;i++) 
	cin>>a[i].num>>a[i].score;
	for(int i=0;i<n;i++) {//冒泡排序 
		for(int i=0;i<n-1;i++)
		if(a[i].score<a[i+1].score)
		swap(a[i],a[i+1]);
	}
	cout<<a[k-1].num<<' '<<a[k-1].score;//注意要减1（数组从0开始） 
	return 0;//OK! 
}