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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. vector<int> get_intersection(vector<int> &a, vector<int> &b) {
  6. 	int i = 0;
  7. 	int j = 0;
  8. 	vector<int> out;
  9.  
  10. 	while (i != a.size() && j != b.size()) {
  11. 		if (a[i] == b[j]) {
  12. 			out.push_back(a[i]);
  13. 			//if (i < a.size()) {
  14. 				i++;
  15. 			//}
  16. 			//if (j < a.size()) {
  17. 				j++;
  18. 			//}
  19. 		}
  20. 		else if (a[i] < b[j]) {
  21. 			//if (i < a.size()) {
  22. 				i++;
  23. 			//}
  24. 		}
  25. 		else if (a[i] > b[j]) {
  26. 			//if (j < b.size()) {
  27. 				j++;
  28. 			//}
  29. 		}
  30. 	}
  31.  
  32. 	return out;
  33. }
  34.  
  35. int main() {
  36. 	// your code goes here
  37.  
  38. 	vector<int> a = {1,4,7,10,13};
  39. 	vector<int> b = {1,3,5,5,7,13};
  40.  
  41. 	vector<int> out = get_intersection(a, b);
  42.  
  43. 	for (auto &e: out) {
  44. 		cout << e << " ";
  45. 	}
  46.  
  47. 	return 0;
  48. }
Success #stdin #stdout 0s 3456KB
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https://ideone.com/BtpHWD
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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