The problem is as follows…
Initially I have a pair of adult pigeons (capable of breeding) which give rise to another young pair every month until it reaches the age of 5 years (60 months). But …

This program can be used to set the system date or to change the current system date.
 
 
 
#include <stdio.h>
#include <process.h>
#include <dos.h>
int main(void)
{
struct date reset;
struct date save_date;
getdate(&save_date);
printf(“Original date:\n”);
system(“date”);
reset.da_year = 2001;
reset.da_day = 1;
reset.da_mon = 1;
setdate(&reset);
printf(“Date after setting:\n”);
system(“date”);
setdate(&save_date);
printf(“Back to …

This program will get or read the current system date from the system. It displays Year, Month and Day.
 
 
 
 
#include <dos.h>
#include <stdio.h>
int main(void)
{
struct date d;
getdate(&d);
printf(“The current year is: %d\n”, d.da_year);
printf(“The current day is: %d\n”, d.da_day);
printf(“The current …

This program can be used to set or change the system time
#include <stdio.h>
#include <dos.h>
int main(void)
{
struct time t;
gettime(&t);
printf(“The current hour is: %d\n”, t.ti_hour);
printf(“The current min is: %d\n”, t.ti_min);
printf(“The current second is: %d\n”, t.ti_sec);
/* Add one to …

This program reads the current system time and displays it in the form HH:MM:SS
#include <stdio.h>
#include <dos.h>
int main(void)
{
struct time t;
gettime(&t);
printf(“The current time is: %2d:%02d:%02d\n”, t.ti_hour, t.ti_min, t.ti_sec);
return 0;
}

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 …

This is a simple login program in C. While accepting password it masks each character using ‘*’ symbol and display the password in the next line after the user hits Enter key. It also accepts …

This program is an example of how to create a virus in C. This program demonstrates a simple virus program which upon execution (Running) creates a copy of itself in the other file. Thus it …