C++,binary calculator

how to random binary numbers using itoa???

Sounds simple:

char str[20];   // Must be big enough to hold entire random number 
  srand ( time(NULL) );  // initialise random seed
 
  double a= rand() % 10 + 1;  // generate number 1 to 10 in this case
  itoa(a, str, 2);

hey folks thanks for the help your such a nice person....

Thank you show much for sharing the usefull coding.