#include<iostream> #include<algorithm> using namespace std; const int maxn=105; struct stu { int id; double grade; }; stu arr_stu[maxn]; bool cmp(stu a,stu b) { return a.grade>b.grade; //注意是从大往小排成绩:一直错误 } int main() { int n,k; cin>>n>>k; for(int i=0;i<n;i++) { cin>>arr_stu[i].id>>arr_stu[i].grade; } sort(arr_stu,arr_stu+n,cmp); printf("%d %g",arr_stu[k-1].id,arr_stu[k-1].grade); return 0; }