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 | 7.5k 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)
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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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