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Jun 21st, 2018
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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main(){
  6.  
  7. ios::sync_with_stdio(0);
  8. cin.tie(0);
  9.  
  10. int n1;
  11. cin >> n1;
  12. int* nums1 = new int[n1];
  13. for(int i=0; i<n1; i++){
  14. cin>>nums1[i];
  15. }
  16. int n2;
  17. cin >> n2;
  18. set<int> nums2;
  19. int t;
  20. for(int i=0; i<n2; i++){
  21. cin >> t;
  22. nums2.insert(t);
  23. }
  24.  
  25. for(int i=0; i<n1; i++){
  26. if(nums2.find(10000-nums1[i]) != nums2.end()){
  27. cout << "YES";
  28. return 0;
  29. }
  30. }
  31.  
  32. cout << "NO";
  33.  
  34. return 0;
  35. }
  36.  
  37. #include <bits/stdc++.h>
  38.  
  39. using namespace std;
  40.  
  41. int main(){
  42.  
  43. ios::sync_with_stdio(0);
  44. cin.tie(0);
  45.  
  46. unsigned int n1;
  47. cin >> n1;
  48. set<int> nums1;
  49. int t;
  50. for(int i=0; i<n1; i++){
  51. cin >> t;
  52. nums1.insert(t);
  53. }
  54.  
  55. unsigned int n2;
  56. cin >> n2;
  57.  
  58. bool res = false;
  59.  
  60. for(int i=0; i<n2; i++){
  61. cin >> t;
  62. if(nums1.find(10000 - t) != nums1.end())
  63. res = true;
  64. }
  65.  
  66. cout << ((res)?"YES":"NO");
  67.  
  68. return 0;
  69. }
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