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How to use the "rand" instruction

+4 votes
asked Jan 26 by Manuel Sevilla (160 points)

1 Answer

0 votes
answered Jan 27 by Peter Minarik (69,270 points)
edited Jan 27 by Peter Minarik

Which language? For C, see this manual for details and examples.

A quick example:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main ()
    srand(time(NULL)); // Initialzie the random number generator with a random seed.
    int randomNumber = rand() % 100 + 1; // Generate a random number berween 100 (0..99 + 1)
    printf("The random number is: %d\n", randomNumber);
    return 0;
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