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 | 9.3k 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)
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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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