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Posted By

mustam on 08/19/09


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cdnicoll


Generate random numbers

 / Published in: C
 

e.g. 

$ ./a.out 4 0
1762001.350586 827080.943359 1642278.102539 1674450.112305

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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. #define USAGE "Usage: %s NUMBER SEED\n"
  5.  
  6. int main(int argc, char ** argv)
  7. {
  8.     int i, n, seed;
  9.  
  10.     if(argc!=3){
  11.         fprintf(stderr, USAGE, argv[0]);
  12.         exit(0);
  13.     }
  14.     n=atoi(argv[1]);
  15.     seed=atoi(argv[2]);
  16.     srand(seed);
  17.     for(i=0; i<n; i++) printf("%.3lf ", (double)rand()/1024);
  18.  
  19.     return 0;
  20. }

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