11-30 Exercise 1: Fibonacci numbers (Array)

Question

Please use array. 請使用陣列

In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence: 0,1,1,2,3,5,8,13,21,34,55,89,144

前13的斐波那契數列：0,1,1,2,3,5,8,13,21,34,55,89,144

By definition, the first two numbers in the Fibonacci sequence is 0 and 1, and each subsequent number is the sum of the previous two. In mathematical terms, the sequence Fn of Fibonacci numbers is defined by the relation  with seed values F0 = 0, F1= 1

斐波那契數由0和1開始，其後的數就由之前的兩個數相加。用數學表示 F0 = 0, F1 = 1

Write a program that asks the user to type an integer n, then display Fn on the screen.

寫一個輸入一個整數n，輸出第n個斐波那契數的程式

Example input 1:

5

Example output 1:

5

 

Example input 2:

12

Example output 2:

144

 

Answer 1

Hidden content!
#include ** **     **  * 

int main()
{
   ****   ** * * * **  ** *** * ** i,n;
 * ** *** *    * ** * *  * * * * *   * * * **   
*  ** *  * * **    * *     f[40]={0,1};
 ** *    * *   *     **  * *  * * (i=2;i<=n;i++)
*   * ** * *    ***  *  *     * *    * *** ****
* * *  * *  **** **    *** * * * **  * * **  **    * * *
**    ***   *** ***  *  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 2

Hidden content!
**   **** * ****    ** 
int main(void)
{
** *   *  ******   *****   ***  a[999]={0,1},b,c,d;//c=total amount
 *   ** * *** * **** ***** *    *   *  *     ** * *  **
 * ****  *   *****  **  * * **  *   ** ****   **  *** (d=2;d<999;d++){
***** *  *    * * ** * **    ** *** ** ***** *    * **   *  * ** ***  *    *    ****   *  ***
  ** **   *  *   **** *  ** **** ** * **** ** * *
** *   **** *  * ******  **  * *  ***** ** **** * ******  ("%d",a[c]);
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 3

Hidden content!
  **  *  *  * ** 
int main(void)
{
* *  ****** * ** * **  ** a[999]={0,1},b,c,d;//c=total amount
* *** *** ***  * * *******        ** **  ** **  * *** 
*** ****    * ** *   * ******   *  *  * *** * * *  * ***  (d=2;d<13;d++){
**    **  ** **** *  ** *  * **  *  *** *** ** **** ** **   *  *  * * * *   **       **  *** * * *** *** ***
 *  ** **    * ******   *   ********   * **** *   ***    *
 ** *   *  ** **** * * **   * ***  * ** **   ** *   * *  * ("%d",a[c]);
}

Comments

Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output

Answer 4

Hidden content!
#include <stdio.h>

int main (){
    int a,c;
 * *  * *  *  ******   * **  *  ****   **  * * *  **** 
    if(a!=0){
    ****** * ** *        * *     * **   **** *** *  *  ***   b[a];
*          ** * *** ** *   * ******* * ****   ****   * *    * 
*****    * ******* * *  *** *    *   *     *   * * * **  *
***  * **  ****   * *** ** **** * * * ****** * **  * *** **     **  *     
 ** ****    * *  *   *   ** **  *    * * **   ****  *  *      ** ****  ***   **   *  ** ** *******
 * **          *  *   **** *  *  **** ** * *** ** * **  
 *  **  *  ***    * **     * *    **     *** ** ** *** *  *       ****  ** * **** * **
 **** *  ** *    **   * *   ****** *   **      *   * 
    return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 5

Hidden content!
#include  ** ***  **   *  
#include ****   *  *

int main()
{
      *      i,N;
**   **       *  *  *  **     * * *  ****
* *** *  ****** a[N];
*  *     ** * **** * 
*  ********* ** **
  ** ** *** * * * i<=N; i++)
*  ******* 
**  * * **  * * **   **   ***** ***** 
   *    ** *    ** *** * ***** * *******  * *  ** 
  }
*  *   * *   * * *** * *  *  **** * *    **  
*******  ****    *  * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 6

Hidden content!
#include     ** **  
#include   **  *     * 

int main()
{
      *    **   i,N;
*   *   * **  *    **  *  ** ***   **  
* ***  * ** a[N];
*  **  *  *** *
  *  ** *   * **
    ****** ****** * i<=N; i++)
 ** *    **  ***
 **    ****** ****  ***      **  *   *  
****   * * **   **  **      ****   **   *  * * * ** * * *
  }
 *  ** *    **  ****  **    **         
 *    ***  * ****  *** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 7

Hidden content!
#include<stdio.h>
int main()
{
** **  ** ** *  ** **  *    *   n;
 *     ***  **  ***  *  *  **  j;
*  * * **  ** *   * ** * * ** *   *  * * ***** * 
**** **   * *     * ** * ** *   c[n];
   ***  ** * *    ** * **   *  
 * *  *    ********      **    ** 
***   * **  *** * * ***   ** *****  **   *** 
* * * * ***  * **   * * ***  *** **     * **     ** **   printf(" *%d\n",j);
*   **   *  ***  *  ** *    *   *   **      ** * * * ***** * 
 * *******  * ***  ***   ******  **  * *  ***   **  * *   *   *  ** *   **  *  *   *  
    }
*** ****  **  *  *   *   * ***  * *  * ***  ****  * 
***  * *  * **   ***   ****      0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 8

Hidden content!
#include *** * *****  **   

int main()
{
*** ** * **  ******** *** *** *     ***  i = 0;

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

*  ******* * **  ** * * **** array[i];

 * ***  ***  *** ** ** *** j = 0;

 *   ****  *  * ** *  ****  *   * *  = 0;

* *** ***** ** ***  ** *** *   * = 1;

 ***** *** **   * ******   *  ** = 2; j <= i; j++)
****  *  *** *  * *  ** 
* * ** ** ******** **   **    ** ***  *  * * **  *** * * ** **** = array[j - 1] + array[j - 2];
** * *** *  ********* ***  *  *

**  * ***  ***  *   *  **  *    * ** * ****   *   array[i]);

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 9

Hidden content!
#include   **  *  ***   

int maim()
{
  ** * * ******** ** **    *   *    *****  *    i = 0;

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

 **      ** * ***  *** ** *  ** array[i];

  ** **     *  *** * *    ****  **  j = 0;

* *  **  ***  *** *     *  * * **  = 0;

*  *  *   ** **  * * *    * ** *   = 1;

*******  * *   * *   **** **  ** = 2; j <= i; j++)
***      *********  * ** *
   ****  *     * *   **** **  ***** ***** **** *  **** = array[j - 1] + array[j - 2];
** *  *  ****  ** *  *    

*** * **  ** * ****        **    **   ** ** *  **  *** array[i]);

}

Comments

/usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status

Answer 10

Hidden content!
*  * *** *****  * **  * i = 0;

   * *** *   * ****   *  *  * **   ***  ** **** *  * &i);

 *  *** ** **  *  * *  *   array[i];

     * ** *** *     * * ***** j = 0;

**** *** *** *  * * **** *  * = 0;

  ** ***  * ****    **   *      *   = 1;

  * **  * * **  **  * **    *** = 2; j <= i; j++)
** * * * ***** *    *****
* * **   **   * ***      ** * ****** ** ** ***  * **   *    ** = array[j - 1] + array[j - 2];
******* * *    **** ***    ** 

  ***    *   ****** * **  *   *    **     ** * array[i]);

Comments

prog.c:3:11: error: expected declaration specifiers or '...' before string constant
     scanf("%d", &i);
           ^~~~
prog.c:3:17: error: expected declaration specifiers or '...' before '&' token
     scanf("%d", &i);
                 ^
prog.c:5:9: error: variably modified 'array' at file scope
     int array[i];
         ^~~~~
prog.c:9:5: warning: data definition has no type or storage class
     array[0] = 0;
     ^~~~~
prog.c:9:5: warning: type defaults to 'int' in declaration of 'array' [-Wimplicit-int]
prog.c:9:5: error: conflicting types for 'array'
prog.c:5:9: note: previous declaration of 'array' was here
     int array[i];
         ^~~~~
prog.c:9:16: error: invalid initializer
     array[0] = 0;
                ^
prog.c:11:5: warning: data definition has no type or storage class
     array[1] = 1;
     ^~~~~
prog.c:11:5: warning: type defaults to 'int' in declaration of 'array' [-Wimplicit-int]
prog.c:11:16: error: invalid initializer
     array[1] = 1;
                ^
prog.c:13:5: error: expected identifier or '(' before 'for'
     for(j = 2; j <= i; j++)
     ^~~
prog.c:13:18: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<=' token
     for(j = 2; j <= i; j++)
                  ^~
prog.c:13:25: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
     for(j = 2; j <= i; j++)
                         ^~
prog.c:18:12: error: expected declaration specifiers or '...' before string constant
     printf("%d", array[i]);
            ^~~~
prog.c:18:18: error: expected declaration specifiers or '...' before 'array'
     printf("%d", array[i]);
                  ^~~~~