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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5. 	long int m,p,g,n,i,j,testcase,r;
  6. 	scanf("%ld", &testcase);
  7.  
  8. 	for (j = 0; j < testcase; ++j) {
  9. 	scanf("%ld", &n);
  10. 	m = 0, p = 0;
  11. 	r = 2 * n;
  12. 	long int a[r];
  13.  
  14. 	for (i = 0; i < 2 * n; ++i) {
  15. 		scanf("%ld", a + i);
  16. 	}
  17.  
  18. 	for (i = 0 , j = n; ((i < n) && (j < (2*n))); ++i, ++j) {
  19. 		m = m + a[i] * a[j];
  20. 		p = p + (n - a[i]) * a[j];
  21. 	}
  22.  
  23. 	scanf("%ld", &g);
  24.  
  25. 	if (p > g)
  26. 		printf("%ld\n", m + g);
  27. 	else
  28. 		printf("%ld\n", m + p);
  29. 	}
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 2252KB
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https://ideone.com/Tuc005
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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