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 | 9.3k 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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