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  1. #include <cstdio>
  2. #include <cstdlib>
  3. #include <ctime>
  4. const int MAX_N = 100;
  5.  
  6. // returns a random number x, where a <= x <= b
  7. // srand(time(NULL)) must be called before using this function
  8. int random(int a, int b){
  9. 	return (rand() % (b - a + 1)) + a;	
  10. }
  11. int main() {
  12. 	srand(time(NULL)); // initalizing PRNG
  13. 	int n = 5;
  14. 	int m = 5;
  15. 	int a[MAX_N][MAX_N];
  16. 	// assign each number of the matrix with a random number between 1 and 100
  17. 	for(int i = 0; i < n; i ++){
  18. 		for(int j = 0; j < m; j++){
  19. 			a[i][j] = random(1, 100);
  20. 		}
  21. 	} 
  22. 	// print the matrix for visualisation
  23. 	for(int i = 0; i < n; i++){
  24. 		for(int j = 0; j < m; j++){
  25. 			printf("%d ", a[i][j]);
  26. 		}
  27. 		printf("\n");
  28. 	}
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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74 44 27 28 59 
86 97 67 97 78 
86 36 33 90 86 
30 100 18 8 32 
14 51 5 61 25
https://ideone.com/T3YEJb
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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