c rand function code example
Example 1: c random
#import <stdlib.h>
#import <time.h>
int r;
srand(time(NULL));
r = rand();
/*
This will give you a pseudo random integer between 0 and RAND_MAX.
srand(time(NULL)) is used to give it a random starting seed, based on the
current time. rand() could be used without it, but would always return the
same sequence of numbers.
To generate a random number in between 0 (included) and X (excluded), do
the following:
*/
#import <stdlib.h>
#import <time.h>
int r;
srand(time(NULL));
r = rand() % X;
Example 2: c number randomizer
/** This random number generator using your
own computer time to generate random
number, the program is working so quick
so you can't use a for loop to generate
multiple numbers. even with a delay the
program will run in a small jumps from
number to another so the only way to
properly generate random numbers is
running the code multiple times **/
//C libraries statement
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
//Driver program
int main(void)
{
//Declaring the variables
int number, min, max;
//Getting the input from the user
system("cls");
printf("What is the minimum number?\n");
scanf("%d", &min);
printf("What is the maximum number?\n");
scanf("%d", &max);
//Calculating and printing the random number
printf("\nThe numbers:\n");
srand(time(0));
number = (rand() % (max - min + 1)) + min;
printf("%d ", number);
//Ending the program
return 0;
}
///The code itself without the details:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(void)
{
int number, min, max;
system("cls");
printf("What is the minimum number?\n");
scanf("%d", &min);
printf("What is the maximum number?\n");
scanf("%d", &max);
printf("\nThe numbers:\n");
srand(time(0));
number = (rand() % (max - min + 1)) + min;
printf("%d ", number);
return 0;
}