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 | 7.2k 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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