47 lines
926 B
C++
47 lines
926 B
C++
#include<iostream>
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using namespace std;
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struct data
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{
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int ID;
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int score;
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};
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bool cmp(data a,data b)
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{
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if(a.score>b.score) return 1;
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if(a.score<b.score) return 0;
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return a.ID<b.ID;
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}
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template<class T>
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void fsort(T *left,T *right,bool (*cmp)(T a,T b),T *k)
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{
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if(right-left<=1) return;
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unsigned int len=right-left;
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fsort(left,left+len/2,cmp,k);
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fsort(left+len/2,right,cmp,k+len/2);
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int i=0,j=len/2,n=0;
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while(i<len/2&&j<len)
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{
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if(cmp(left[i],left[j])) k[n++]=left[i++];
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else k[n++]=left[j++];
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}
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while(i<len/2) k[n++]=left[i++];
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while(j<len) k[n++]=left[j++];
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for(int i=0;i<len;i++) left[i]=k[i];
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}
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int main()
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{
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int n,m;
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cin>>n>>m;
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data p[n],k[n];
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for(int i=0;i<n;i++) cin>>p[i].ID>>p[i].score;
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fsort(p,p+n,cmp,k);
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int f=p[int((double)m*1.5)-1].score;
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cout<<f<<" ";
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int add=0;
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while(p[add].score>=f) add++;
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cout<<add<<endl;
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for(int i=0;i<add;i++) cout<<p[i].ID<<" "<<p[i].score<<endl;
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return 0;
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}
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