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 | 9.5k 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)
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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)
0 like 0 dislike
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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