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 | 8.8k 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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