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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 | 8.5k 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)


* * ** * **** * ** * * ** * ** *** ****


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* * * ** * **** * * ***** **** ***** * ***** * * * * * * * *** **


** *** * * ** *** * * ** *** * * *** * ** * ** ***** * * * ** * ** = 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;


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* *** *** * ****** (n == 2)


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** *** * * * ** * *** * * * if (n == 1)


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**** * * *** ** * * ** ** * * ** * * *** * * * *** ** ***** ** = value3;


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** ** ** * * **** * *** * * ** * *** ** **** * ** * * 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)
*** ***** *** ****** ** **** * ** *
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* ** * * ** ****** ******* * * ** * * *** ** * * * * * *
** * * * * *** ** **** * ** ** **** ** * * * * * ** * * *** = 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)
* * **** ** ****** * * **** * *** ** ** ***
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* * * ** * ** ** ** * **** ** * * ** *** * * * ** *** * ** ***** * = value2;
**** * * ** **** ***** ***** * * ** *** * **** ****** ** = value3;
* *** ** ** ** ** * ** * **** * ** * ****
** * * *** ** * * * ** *********** ***** ** ** value3;

}

int main()

{
**** **** **** * ******* num;
* * * **** ** * *** * * ** * * * * ** &num);
** *** *** ** * * * ** * ** * ** * rabbit(num));
***** *** *** * * * 0;

}
answered by (-215 points)
0 like 0 dislike
Hidden content!
#include * **** * ** *

#include * * * *



int main()

{
* *** * * n, i;


********* * ********* * * **** ** &n) != EOF)
** **** **
* ** * *** **** ** * **** *** ** * * * * * * long long int month[n];
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******** * ** * **** ***** * ** * * * * = 2; i < n; i++)
* *** ***** **** ** **** * ** *
** **** * * * * * ** * * * ***** *** * * * ****** * * = month[i-1] + month[i-2];
* ** * ** ** * * * * * **** *


** * * ** ** * * * * **** *** * *** ** * * *** * *** * month[n-1]);
*** * * **** *** *


* * ** ***** * * 0;

}
answered by (38 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include ** ** ** *** *



int main()

{
** * ** * **** * *** n, i;


* * * * ** * *** * * **** * * *** &n) != EOF)
***** ** * * * *
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*** ****** *** ** **** ** * ** * **** ** * ** = 1, month[1] = 1;


*** **** *** * *** * **** ** *** * * *** = 2; i < n; i++)
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*** ** **** * * ** ****** ** * ** *


** *** **** * ** * * ** *********** ** * * ** ** * * month[n-1]);
* *** *****


* *** * * *** * ***** * * 0;

}
answered by (38 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 (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)
0 like 0 dislike
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;
** *** * * * ****
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* * ** *** **** * ** * * ** ** ** * *** * *** ** * = 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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