2-23 Lab Exercise 2: How many rabbits?

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    Suppose there is a pair of newborn bunnies in the pasture in the first month, each pair of male and female bunnies grew into a large male and female rabbits after two months later. After three months from the start, each pair of male and female rabbit can give birth to a pair of small bunnies every month. If the rabbits can live forever, how many pair of rabbits in the pasture in the first N month?

(1<=N<=90)(Very IMPORTANT)

Input

3

Output

2

 

Input

5

Output

5

 

Input

88

Output

1100087778366101931

[Exercise] Coding (C) - asked in C
ID: 22018 - Available when: Unlimited - Due to: Unlimited
edited by | 6.9k views

69 Answers

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Hidden content!
#include <stdio.h>







long long int rabbit(int n)



{


** *** *** ******** **** * long int value1, value2, value3;


* * *** ** * * *** ** count = 1;


*** * * * * * ** * ** = 0;


** *** * * ** ** *** *** = 1;


*** * * * * * ** * * **** ** (n == 2)


* * * ** * *** * **** * ** * * *** * * ****** ** * 1;


* ********* *** *** * if (n == 1)


* * * * ** ** * * * * * * * *** * * * ** * 1;


**** ** * * * * * * ***


* ** ** * *** * ** ** * * * ***** ** * ** * (count < n)


** *** * * ** ** *** * **** ** * ** * ** ***


**** * ** * ** * ** ** ***** ** ** ** * * * ** * ** ** * *** = value1 + value2;


** ** ** * ** ** ** **** * *** * * * * * * ** * **** **** ****


** **** * ** * *** * ** **** * ** * * * * * *** ** ** * = value2;


** ***** ** * ** * * * * ** * *** * * * ** * ** ** * * = value3;


* *** * ** * *** *** *** ** * *


** ** * **** *** * ***** ** *** * * ********* value3;



}



int main()



{


* ** * * * *** *** ** * num;


** *** *** *** * ** * ** ** *** &num);


* * * * * * ****** **** **** * rabbit(num));


**** * * * * ** * * ** * 0;



}
answered by (6 points)
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Hidden content!
#include <stdio.h>







long long int rabbit(int n)



{


** * ** *** ** * **** long int value1, value2, value3;


* ** * * ** **** count = 1;


* ** * ** **** * *** * * * = 0;


* *** ** ** **** * * * = 1;


**** * *** * ** * ** (n == 2)


** * ** *** ** * * *** * *** * ** *** * * * * **** * 1;


** * * ** **** * if (n == 1)


** ** * *** * ******* * * ** * ** * *** 1;


* * ** ** * *** * * * *


** * * **** * ** ** * **** * * **** (count < n)


** *** *** * ** * ** * ***** **** ** * * **** * **


* * *** ** ** * * * * * * *** * ** * **** * * ***** *** * *** * * * * = value1 + value2;


** ** * * ** * * * * ****** * * * * * ** * * ** ** * *


* * * * * **** * **** * ****** * ** ***** * * * * ** *** ** = value2;


* **** * * *** *** * * ** ** **** * ** **** ** ** * = value3;


* * *** ** * * * * * * ** * * ** *** * ***


* * ** **** * * * *** ** *** * * * **** * value3;



}



int main()



{


* * ** * ** * ** * ** num;


*** * * ** * ** * ** * *** *** * *** &num);


* * * * * * * * *** ** * * * * * ** *** rabbit(num));


*** * ** * **** * **** 0;



}
answered by (-298 points)
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Hidden content!
#include <stdio.h>



long long int rabbit(int n)

{
** * ** * * * * * ** ** **** long int value1, value2, value3;
** * * * * ***** * count = 1;
* * ******* * * * = 0;
** ** ** *** * * * * * = 1;

    if (n == 2)
**** ****** * * * * * *** **** * **** * 1;
*** *** * * ***** ** * if (n == 1)
**** ** * **** ******* *** * **** ** * 1;
** * ****** *** *** ** *
** * * ** *** * ** *** * * * ** * * ** ** ***** * * * (count < n)
* * * ** *** ***** * * ** ** * ** *** *
***** *** ***** * * ****** ** **** * * *** * * ** * * * * * ** ** **** = value1 + value2;
** * * **** ** ** *** ***** * * * * * * * * ** ** **** * * * * *
* * ** ** * **** ** * **** ** * * * * *** * *** ** *** * * * ** = value2;
* ******* * *** * * **** ** *** ** * * **** * *** * * ****** ** ** = value3;
********** ** **** * * * * **** *** ** * *** **** *
* * ** * * **** * * * ** ** * * ** *** ****** value3;

}

int main()

{
* * * * ** * num;
**** * ** * ****** **** * ** * * * ****** &num);
*** **** ** ** * * ** * ******** ** *** rabbit(num));
* * * * ** * *** 0;

}
answered by (237 points)
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Hidden content!
#include <stdio.h>



long long int rabbit(int n)

{
**** ** **** * * long int value1, value2, value3;
* * ** * * ** count = 1;
* *** * ** ** * = 0;
*** * * **** ** ** ****** * = 1;

    if (n == 2)
* * ************ * * ** *** *** * * * 1;
**** * ** ** * *** ** * if (n == 1)
* *** * * * *** * * ****** *** * **** 1;
** ** * ** * * ***
** * * ***** * * * ** * ** * * * *** * *** * (count < n)
** ** * * * * *** * ** * **** * * * ***
* * * **** * ******* *** *** **** *** * * ******** **** *** * * ****** = value1 + value2;
**** * * * * * * * ****** *** * *** * * * * *** ** * * **
*** ***** ** * ** *** **** *** ** ** * * **** ** * ** * *** ***** = value2;
**** * ** * *** * *** * *** * * * * ** * ** * ** * ***** ** ****** = value3;
* ********* * * *** ******* * * * * * * ** *** *
* * *** **** * *** ****** * ** * ** ** value3;

}

int main()

{
* * * * *** * * * num;
* ** * **** * * * * ****** *** * *** *** ** &num);
***** * * * * ** **** * * ****** * * * rabbit(num));
** * * * * *** * **** 0;

}
answered by (-215 points)
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Hidden content!
#include *** * ** *

#include * * **



int main()

{
*** * * * * * *** * n, i;


**** * ***** * * ******** * * ** * &n) != EOF)
* *** ****
* ** ** * * * *** * *** ** * long long int month[n];
** ** ** * *** * * * *** * ** ****** = 1, month[1] = 1;


* * * ** * ** * * * ** ** * ** ** * ** * ********* = 2; i < n; i++)
*** ** * ***** *** * * ** ** *** *** ** * * ***
***** * * ***** * * * * * * ** ** ** * * *** ** * ** ** = month[i-1] + month[i-2];
** *** ** ***** ** ** *** * *** * * * * ***** *


* ****** ***** *** * * *** **** ** * * * ** month[n-1]);
*** * * ** *


* * * ** * *** * *** ** * * * 0;

}
answered by (38 points)
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Hidden content!
#include <stdio.h>

#include ****** ** * *



int main()

{
* * ****** ** ** ** n, i;


* * ** * ** * * *** ** **** &n) != EOF)
*** ** * **
** * * *** **** * * * *** * ***** month[n];
* * ****** * ** * * * * * *** *** * = 1, month[1] = 1;


* * ** ** * * * * * * * * * ***** * * * = 2; i < n; i++)
* * ** ****** * ** * * * ** ** * *
** ** * * ** **** ** * **** ** ** * **** ** *** * * = month[i-1] + month[i-2];
* ** * * * * ** * * *** **


* * ** ***** * * ***** ** **** *** * ** * *** ** ** * * month[n-1]);
* *** * * **** *


***** * **** *** * 0;

}
answered by (38 points)
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Hidden content!
#include <stdio.h>



long long int rabbit(int n)

{
**** *** ** * long int value1, value2, value3;
* *** * ** * *** ** * * count = 1;
* * * * ** ** * *** * = 0;
* ********** ** ** ****** = 1;

    if (n == 2)
** ** **** * * *** * ** * * * * * *** * *** 1;
* * **** ** ** if (n == 1)
** * * **** * **** **** * * * * * * * 1;
** ***** ******* **
***** * ***** * * *** ** * ** * * *** ** * *** (count < n)
** * ***** * * * * *** **** * ** * *** ** *
** ** * * * * * * ** * ** *** *** * * ** * ** *** ** * *** ** = value1 + value2;
* ** * ** * * **** * * *** **** ** * * ** * ** * *** ** ******** *** ** **
******** * * ** *** ** * ***** *** * ******** *** ***** ** * *** ** ** ** = value2;
* * ** * * * ***** ** ** *** * * **** * *** **** *** * *** *** * *** * = value3;
* * * * * *** * * ** ****** **** * * ** * ***
* **** *** **** * ** ** * **** ** value3;

}

int main()

{
** **** ** ** *** ** ** ** num;
* * * **** **** * * * ** * ** * ** &num);
* *** ****** ** ****** * * ******* ** rabbit(num));
* * ***** * ** **** 0;

}
answered by (126 points)
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Hidden content!
#include <stdio.h>



int main()

{
* ** * * **** * * ** * i, num;
* ** ** ** * **** *** * long total = 0, rabbit = 1, pairs = 1;


* ** ** * *** * * ** * * ** *** * &num);


***** * ** ****** ** **** * = 2; i < num; i++)
** * * * * * * * * *


** **** *** ***** * ***** ** * ** = rabbit + pairs;
*** * ** * * ** * * ** ** *** * * *** = rabbit;
* *** * ** * ** * ***** * * * * ** * * ** * ** * ** = total;


* *** * * * **
** ** ** *** * * * ** == 0)
**** ** ** *** *** ** *
*** * * * * * * ** * ***** ** * ** ** * **** * **** * *** *
** * * * * ** else if(num == 1)
**** * * * *
* * * * * * **** *** * * ** *** * * ** ** * *** * ** **
**** ***** ***** * ** else if(num == 2)
*** * ***** ***
* * ** * * * ***** * * * ** ** ** * * ** * ** ** ** ** * ****
* * * ****** * *** ** ** else{
** * * ** ** * ** * ** * * * ** *** * * * ** * *** ** **

    }




*** ** ** ** ** ****** 0;

}
answered by (-189 points)
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Hidden content!
#include * **** *

#include * * * * *



long long int fib(int );



int main(){


*** * *** * * **** *** N;
* ** * * ** ** ** *** long int output;
* * * * *** ** *** * ******* * ** ** &N);
* ** ** *** ** *** * *** * * ** ** **
**** * *** *** **** ** ** * *** ** * = fib(N);
*** **** * * ** **** * ****** ******* * * ** *** * *** * output);
* ***** * * * * * *


* * * *** * ******** **** ** 0;

}



long long int fib(int * * * * * *
**** ** ********* *** *** long int last_2nd = 1, last = 1, output;
* * *** ** ******* ***** i;
** ** * * * ** * * * * == 1 || N == 2)
******* * * ** * ** * ** * ** ** ** * ** ** * 1;
*** ** * ** ** *** *** *
****** ** * * * * **** = 2; i<N; i++){
* * ** * *** ****** * * **** * ***** *** ** * ** = last_2nd + last;
** * * ****** * ** ** **** * **** **** * = last;
** ****** * ****** **** **** * *** * * * ** * = output;
* * * ** * * * ** *
******* *** * **** * ** output;

}
answered by (-188 points)
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Hidden content!
#include <stdio.h>



long long int rabbit(int n)

{
* * ****** *** * ** ** long int value1, value2, value3;
** * ** ** *** *** * count = 1;
* * ** * * * **** ** = 0;
* * * **** **** ******* * * * = 1;

    if (n == 2)
* * ***** ** * ** * ****** ** *** * **** *** * 1;
* ** * * * * **** * * if (n == 1)
*** * * *** ** ** * *** * * * ** * 1;
***** * * * * ** * * *
*** ** * ***** * * * * * * * * ** ** (count < n)
* * * * ** * ** * ******* ****** *** * * *
*** * * *** *** * * **** *** * * ** ** ** *** ** **** *** **** ** ** = value1 + value2;
* * * ** * * ** ** * * ** ** * * ** * ****** * * ***
** * * **** * * ** * * * * ** ** ***** *** * * * ** ** ** ** = value2;
** * * ** * * * ************ ** * * * ** * * ** * ** ** = value3;
* ** * * * ***** *** *** ** * *** ***
* * * ** ** ** *** *** *** * ** **** * * **** value3;

}

int main()

{
** * *** *** * ** * ** * * num;
* * ** * ****** *** * * *** * * * * ** ** &num);
* ** * *** *** ** ** * ***** * * ** **** rabbit(num));
* * * **** *** * 0;

}
answered by (-218 points)
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