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  1. #include <iostream>
  2. #include <algorithm>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8. int start_x, start_y, finish_x, finish_y;
  9. cin >> start_x>> start_y >> finish_x >> finish_y;
  10. cout << max(abs(start_x-finish_x),abs(start_y-finish_y)) << endl;
  11. }
  12.  
Success #stdin #stdout 0s 15224KB
stdin
8 1
2 1
stdout
6