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 | 4.3k 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)
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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