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