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  1. #include <iostream>
  2. #include <math.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n,m; scanf("%d %d",&n,&m);
  7. 	double r; scanf("%lf",&r);
  8. 	double inp, sum = 0;
  9. 	for(int i = 0; i < n; i++) {
  10. 		double b = 0.5;
  11. 		bool t = true;
  12. 		for(int j = 0; j < m; j++){
  13. 			scanf("%lf", &inp);
  14. 			if(inp > 0 && t) {
  15. 				t = false;
  16. 				b = inp;
  17. 			}
  18. 		}
  19. 		sum += b*pow(r,n-i-1);
  20. 	}
  21. 	printf("%lf",sum);
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 3300KB
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stdin
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2 4
2.71 
-9.0 -8.8 -7.3  7.5
-6.3 -9.7  6.8 -0.5
stdout
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27.125000
https://ideone.com/nBp4Fp
A407
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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