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Mar 23rd, 2019
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  1. #include<bits/stdc++.h>
  2. #define ll long long
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8. ios_base::sync_with_stdio(false);
  9. cin.tie(0);
  10. cout.tie(0);
  11. long long p,q,r;
  12. cin >> p >> q >> r;
  13. long long a[p][q], b[q][r], c[p][r];
  14.  
  15. for(int i = 0; i < p; ++i){
  16. for(int j = 0; j < q; ++j){
  17. cin >> a[i][j];
  18. }
  19. }
  20. for(int i = 0; i < q; ++i){
  21. for(int j = 0; j < r; ++j){
  22. cin >> b[i][j];
  23. }
  24. }
  25. for(int i = 0; i < p; ++i){
  26. for(int j = 0; j < r; ++j){
  27. c[i][j] = 0;
  28. }
  29. }
  30. for(int i = 0; i < p; ++i){
  31. for(int j = 0; j < r; ++j){
  32. for(int k = 0; k < q; ++k){
  33. c[i][j] += a[i][k] * b[k][j];
  34. }
  35. }
  36. }
  37. for(int i = 0; i < p; ++i){
  38. for(int j = 0; j < r; ++j){
  39. cout << c[i][j] << " ";
  40. }
  41. cout << endl;
  42. }
  43. return 0;
  44. }
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