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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 | 8.4k 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;


** * ****** ***** *** * = 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 (-298 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 (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)
0 like 0 dislike
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)
0 like 0 dislike
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)
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)
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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)
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;
* ******* **** **** ***
* * * *** *** ** * * * = 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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