FilesExpand file tree

 master

/

A.cpp

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

37 lines (31 loc) · 656 Bytes

 master

/

A.cpp

Copy path

Top

File metadata and controls

• Code
• Blame

37 lines (31 loc) · 656 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

#include <iostream>

#include <vector>

#include <algorithm>

using namespace std;

typedef pair<int, int> mypair;

vector <mypair> P;

bool compare(const mypair &a, const mypair &b){

if(a.first==b.first){

return a.second>b.second;

}else{

return a.first<b.first;

}

}

int n,k;

int main(){

cin>>n>>k;

int a,b,c;

for(int i=0; i<n; i++){

cin>>a>>b;

P.push_back(mypair(a,b));

}

sort(P.rbegin(), P.rend(),compare);

int ans=0;

for(int i=0; i<n; i++){

if(P[i].first==P[k-1].first && P[i].second==P[k-1].second){

ans++;

}

}

cout<<ans<<endl;

return 0;

}