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 | 6.5k 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)
0 like 0 dislike
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)
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 (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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