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)
0 like 0 dislike
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)
0 like 0 dislike
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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