C Program for Pigeon Breeding Problem

Submitted by Srikanth on Thursday, 28 February 20088 Comments

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 the young pair starts breeding only when it is 2 months old. Once the adult pigeon pair starts breeding it never stops untils the age of 5 years. Assume the age of initial adult pigeon is 2 months old. This program takes the no. of months as input and will calculate the total no. of pigeons over a given time (as given by the input).

This problem is framed, based on my own imagination and I call this problem as PIGEON BREEDING PROBLEM. Here is the code

#include<stdio.h>
#include<process.h>

struct node
{
int age;
struct node *link;
};

typedef struct node* NODE;

NODE getnode()
{
NODE x;
x=(NODE)malloc(sizeof(struct node));
if(x==NULL)
{
printf(“Out of memory\n”);
exit(1);
}
return x;
}

void main()
{
unsigned long int count=1;
unsigned int months,i;
NODE first=getnode();/*this is the intial adult pair*/
first->age=2; /*assume the age of initial adult pair as 2*/
first->link=NULL;
printf(“Enter the no. of months\n”);
scanf(“%u”,&months);
for(i=0;iage>=2)&&(temp->age<=60)) { NODE temp1=getnode(); temp->age+=1;
temp1->age=1;
temp1->link=first;
first=temp1;
temp=temp->link;
++count;
}
else
{
temp->age+=1;
temp=temp->link;
}
}
}
printf(“Total no. of pairs after %u months=%ld\n”,months,count);
}

8 Comments »

Beautiful Minds - Dell issue said:

Thanks for sharing your thoughts in my blog about the Inspiron 1525 dell issue..

- 1 March 2008 at 7:15 AM

Shank said:

Nice site!! keep up the gud work.

- 10 December 2008 at 1:37 PM

Srikanth (author) said:

Thanks for your support

- 10 December 2008 at 10:09 PM

mrinal said:

thinking out of the box..nice effort..!!

- 12 February 2009 at 11:43 AM

Siddhant said:

Ya ofcourse…it’s something very unusual and different…i like it…:-)

- 11 November 2009 at 6:07 PM

Arun said:

its nice…….

can you posted some small tricky program

- 11 September 2010 at 12:34 AM

Rupam said:

i’ve liked all ur posts. It helps me a lot. I’m only 16 but a great fan of urs srikant

- 9 January 2011 at 8:34 AM

himanshu said:

hey shrikant !!!!!
i hav liked all your posts and also try them they works.
but i have a problem when compiling “restart your pc on every startup” i m using tc compiler the problem is that whenever i execute the program it shows a error “PROGRAM TOO BIG TO FIT IN MEMORY”how this error can be removed.

- 28 February 2011 at 12:49 PM

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