提交时间:2026-06-12 15:26:22

运行 ID: 91283

#include<bits/stdc++.h>万能头文件 using namespace std; int i,n,m,f,k[5001],s[5001],sub[5001]; bool cmp(int a,int b){ if(s[a]==s[b])return k[a]<k[b]; return s[a]>s[b]; } int main(){ cin>>n>>m; for(i=1;i<=n;i++)cin>>k[sub[i]=i]>>s[i]; sort(sub+1,sub+n+1,cmp); f=s[sub[int(m*1.5)]]; for(i=1;s[sub[i]]>=f;i++); cout<<f<<" "<<i-1<<endl; for(i=1;s[sub[i]]>=f;i++)cout<<k[sub[i]]<<" "<<s[sub[i]]<<endl; }