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Nov 23rd, 2014
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  1. #include <iostream>
  2. #include <cstdio>
  3.  
  4. using namespace std;
  5.  
  6. int mas[50][50];
  7.  
  8. int n;
  9.  
  10. int main()
  11. {
  12. cin >> n;
  13.  
  14. int e = 0;
  15.  
  16. for(int i = 0; i < n; i++){
  17. for(int j = 0; j < n; j++){
  18. cin >> mas[i][j];
  19. }
  20. }
  21.  
  22. int vector[50];
  23. double res[50];
  24.  
  25. for(int i = 0; i < n; i++){
  26. cin >> vector[i];
  27. }
  28.  
  29. ////////////////////////////////////////////////////////////////////
  30.  
  31. for(int i = n - 1; i >= 0; i--){
  32. res[i] = vector[i];
  33.  
  34. for(int j = n - 1; j > i; j--){
  35. res[i] -= res[j] * mas[i][j];
  36. }
  37.  
  38. res[i] = res[i] / mas[i][i];
  39. }
  40.  
  41. ////////////////////////////////////////////////////////////////////
  42.  
  43. // cout << '\n';
  44.  
  45. for(int i = 0; i < n; i++){
  46. printf("%.3f", res[i]);
  47. if(i != n-1){
  48. cout << ' ';
  49. }
  50. }
  51.  
  52. // cin >> e;
  53. return 0;
  54. }
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