C Program to Generate Random Numbers

                                                   This is a simple program to generate random numbers. This logic can be used to build a Lotto program or a program to pick Lucky number and so on. Here’s the program.




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

int main(void)
{
int i;
time_t t;
srand((unsigned) time(&t));
printf(“Ten random numbers from 0 to 99\n\n”);
for(i=0; i<10;i++)
printf(“%d\n”,rand()%100);
}

OR

 

 

If it necessary to generate a number between 0 and (num-1) then this program meets the ideal solution

#include<stdio.h>

#include<stdlib.h>

#include<time.h>

/* prints a random number in the range 0 to 99 */

int main(void)

{

randomize();

printf(“Random number in the 0-99 range: %d\n”, random (100));

return 0;

}

A Self Destructing Program in C

This program will destroy itself upon execution. The program will cause the .exe file to be deleted upon execution. That is this program is capable of destroying itself upon execution. Here is the code.




#include<stdio.h>
#include<conio.h>
#include<dos.h>
void main()
{
printf(“This program will destroy itself if u press any key!!!\n”);
getch();
remove(_argv[0]);/*array of pointers to command line arguments*/
}

HOW TO COMPILE ?

Load the source code to the compiler and compile (press Alt-F9) and then press F9. This will generate the .exe file in the current directory (Bin directory). Execute this .exe file it will destroy itself upon execution.