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 | 5.1k 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)
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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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