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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 | 8.9k 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)


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


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


***** ** ** * *** *** ** * * *** ** ** * *** * * ** * * * * * *** ** *** ** * = 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)
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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