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  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4. bool func(const pair<int,int> &a,const pair<int,int> &b)
  5. {
  6.     if(a.first<=b.first)return true;
  7.     return false;
  8.  
  9. }
  10. int main()
  11. {
  12.     int n;
  13.     cin>>n;
  14.     vector<pair<int,int> >x(n);
  15.     vector<pair<int,int> >y(n);
  16.     ///v.first ->x , v.second ->y
  17.     for(int i=0;i<n;i++){
  18.         cin>>x[i].first;
  19.         cin>>y[i].first;
  20.         x[i].second=i;
  21.         y[i].second=i;
  22.     }
  23.     sort(x.begin(),x.end(),func);
  24.     int d[n];
  25.     d[x[0].second]=0;
  26.     for(int i=1;i<n;i++)
  27.     {
  28.         if(x[i].first>x[i-1].first)
  29.         d[x[i].second]=d[x[i-1].second]+1;
  30.         else    ///x[i].first==x[i-1].first
  31.         d[x[i].second]=d[x[i-1].second];
  32.     }
  33.     sort(y.begin(),y.end(),func);
  34.     int d2[n];
  35.     d2[y[0].second]=0;
  36.     for(int i=1;i<n;i++)
  37.     {
  38.         if(y[i].first>y[i-1].first)
  39.         d2[y[i].second]=d2[y[i-1].second]+1;
  40.         else  ///y[i].first==y[i-1].first
  41.         d2[y[i].second]=d2[y[i-1].second];
  42.     }
  43.     int s=0;
  44.     for(int i=0;i<n;i++)
  45.         s+=min(d[i],d2[i]);
  46.     cout<<s;
  47.     return 0;
  48. }
  49.  
Success #stdin #stdout 0s 15240KB
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stdin
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4
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stdout
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https://ideone.com/lH6VQ5
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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