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 | 5.5k 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)
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 (-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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