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 | 6.4k 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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