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 | 10.4k 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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