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 | 6.2k 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)
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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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