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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		Scanner in = new Scanner(System.in);
  10. 		int n = in.nextInt();
  11. 		int m = in.nextInt();
  12. 		int x = in.nextInt();
  13. 		int y = in.nextInt();
  14. 		int[][] arr = new int [n][m];
  15. 		int num = 0;
  16. 		for(int i = 0; i < n; ++i) {
  17. 			int dir, j;
  18. 			if(i % 2 == 0){
  19. 				j = 0;
  20. 				dir = 1;
  21. 			}
  22. 			else {
  23. 				j = m-1;
  24. 				dir = -1;
  25. 			}
  26. 			for(; j < m && j >= 0; j+= dir) {
  27. 				arr[i][j] = num;
  28. 				++num;
  29. 			}
  30. 		}
  31. 		System.out.print(arr[x - 1][y - 1]);
  32. 	}
  33. }
Success #stdin #stdout 0.07s 2184192KB
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5 2 3 1
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4
https://ideone.com/6XbZx3
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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