fork download
copy 
  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. #include <iterator>
  5. #include <fstream>
  6.  
  7. using namespace std;
  8.  
  9. void readSet(vector<int>& v, istream_iterator<int>& input) {
  10.     int size = *input++;
  11.     while (size--) {
  12.         v.push_back(*input++);
  13.     }
  14. }
  15.  
  16. int main() {
  17.     istream_iterator<int> input(cin);
  18.     vector<int> a, b;
  19.     readSet(a, input);
  20.     readSet(b, input);
  21.  
  22.     sort(a.begin(), a.end());
  23.     sort(b.begin(), b.end());
  24.  
  25.     vector<int> intersection;
  26.     set_intersection(
  27.         a.begin(), a.end(),
  28.         b.begin(), b.end(),
  29.         back_inserter(intersection)
  30.     );
  31.  
  32.     cout << "Ilosc powtarzajacych sie: " << intersection.size() << "\n";
  33.     cout << "Liczby:\n";
  34.     copy(
  35.         intersection.begin(),
  36.         intersection.end(),
  37.         ostream_iterator<int>(cout, "\n")
  38.     );
  39.     return 0;
  40. }
Success #stdin #stdout 0s 3036KB
comments (?)
stdin
copy 
4

11 22 33 44

3

11 222 22
stdout
copy 
Ilosc powtarzajacych sie: 2
Liczby:
11
22
https://ideone.com/Y8uJdS
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!