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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	static Scanner sc = new Scanner(System.in);
  8.  
  9. 	public static void main (String[] args) throws java.lang.Exception
  10. 	{
  11. 		int n, m;
  12. 		n = sc.nextInt();
  13. 		m = sc.nextInt();
  14. 		double r = sc.nextDouble();
  15. 		double[][] a = new double[n][m];
  16. 		for(int i = 0; i < n; i++){
  17. 			for(int j = 0; j < m; j++){
  18. 				a[i][j] = sc.nextDouble();
  19. 			}
  20. 		}
  21. 		double sum = 0;
  22. 		for(int i = 0; i < n; i++){
  23. 			double b = 0.5;
  24. 			for(int j = 0; j < m; j++){
  25. 				if(a[i][j] > 0){
  26. 					b = a[i][j];
  27. 					break;
  28. 				}
  29. 			}
  30. 			sum += b*Math.pow(r, n-i-1);
  31. 		}
  32. 		System.out.println(sum);
  33. 	}
  34. }
Success #stdin #stdout 0.17s 321344KB
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stdin
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2 2
2.5
-1 1
1 0
stdout
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3.5
https://ideone.com/NH4EYa
Java 2
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
secret

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