12-21 Exercise 1: Finish the code to match the input and output. Pointer is required.

Question

15.2k đã xem

We will use this function to proceed and store the result

void find_two_largest(int a[], int n, int *largest, int *second_largest);

* When passed an array a of length n, the function will search a for its largest and second-largest elements, storing them in the variables pointed to by largest and second_largest respectively.

寫 find_two_largest() 函數。陣列做為函數參數找出最大值跟第二大值。

Finish the code below to match the input and output. Pointer is required. 請使用指標。

#include <stdio.h>

void find_two_largest(int a[], int n, int *largest, int *second_largest);

int main(void)
{
	int n, largest, second_largest;
	scanf("%d", &n); //Numbers will be entered
	int a[n];
    //Enter n integers separated by spaces
	for (int i = 0; i < n; i++)
		scanf(" %d", &a[i]);

	find_two_largest(a, n, &largest, &second_largest);

	if (n == 0)
		// Your code here
		//Print No numbers were entered.
	else if (n == 1)
		// Your code here
		//Print Only one number was entered. Largest: 
	else
		// Your code here
		//Print Largest: , Second Largest:

	return 0;
}

void find_two_largest(int a[], int n, int *largest, int *second_largest)
{
	// Your code here (Using pointer to finish)
}

Example input:

Example output:

No numbers were entered.

Example input:

1
67

Example output:

Only one number was entered. Largest: 67

Example input:

5
5 6 7 8 9

Example output:

Largest: 9, Second Largest: 8

[Exercise] Coding (C) - đã hỏi ngày 21 tháng 12 năm 2017 trong Chapter 12: Pointers and Arrays
ID: 38251 - Xem được từ: Không giới hạn - Hiệu lực đến: Không giới hạn
đã sửa ngày 21 tháng 12 năm 2017 bởi semicolon | 15.2k đã xem

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Unknown · Answer 1 · 2018-01-18 17:39:01

Hidden content!
#include <stdio.h>

void find_two_largest(int a[], int n, int *largest, int *second_largest);

int main(void)
{

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*****     ***  *  * *  **  * *  ** *** **      * ** * * *    * %d", &a[i]);

****  *    *  *   * ** **  ** * n, &largest, &second_largest);

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**     * ***   * *** * ***    ** ** if (n == 1)
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 * * ********* *   *** *** *  ****  * *    * *  ** ** **   Largest: , Second Largest:

** *  * *  * *** *   ** ** 0;
}

void find_two_largest(int a[], int n, int *largest, int *second_largest)
{
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}

trả lời ngày 18 tháng 1 năm 2018 bởi Unknown (-140 điểm)

112233 · Answer 2 · 2018-01-15 09:29:45

Hidden content!
#include <stdio.h>

void find_two_largest(int a[], int n, int *largest, int *second_largest);

int main(void)
{
    
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*** *  **** * ***  ** *   *    **** ** * *****  *** *   Largest: , Second Largest:

*  ** * ** *   ****  ** * * * 0;
}

void find_two_largest(int a[], int n, int *largest, int *second_largest)
{
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}

trả lời ngày 15 tháng 1 năm 2018 bởi 112233 (-167 điểm)

Sabrina Lin · Answer 3 · 2018-01-13 00:45:11

Hidden content!
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}

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{
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}

trả lời ngày 13 tháng 1 năm 2018 bởi Sabrina Lin (-285 điểm)

PsychoDeity · Answer 4 · 2018-01-10 13:23:07

Hidden content!
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void ** **** ** * * a[], int n, int   **  * int **  ** * * 

int *  **  
{
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}

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{
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* *** ****   *  * ****    ** *   * ****** **  **   *
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}

trả lời ngày 10 tháng 1 năm 2018 bởi PsychoDeity (-168 điểm)

prog.c: In function 'find_two_largest':
prog.c:33:17: warning: comparison between pointer and integer
         if(a[i] > largest){
                 ^
prog.c:35:21: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
             largest = a[i];
                     ^
prog.c:36:25: warning: comparison between pointer and integer
         } else if (a[i] > second_largest
                         ^
prog.c:37:21: warning: comparison between pointer and integer
             && a[i] < largest){
                     ^
prog.c:38:28: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
             second_largest = a[i];
                            ^

đã bình luận ngày 10 tháng 1 năm 2018 bởi The Judge (4.3k điểm)

410330002 · Answer 5 · 2018-01-04 15:31:20

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


void  *** *  *    a[], int n, int *largest, int *  **  *

int ******
{
*** *   *  *****  int n, largest,  *  **** **
**** **      * ** *** **  **  ** * *** *   ** ** 
  ***  *    **  * * int a[n];
**   *  * * ***  int i;

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

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

****    * ** ** * if (n == 0)
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**** ***   ***   else if (n == 1)
  *    ***   *****   **** * ** ******  one number was entered. Largest: ** **  * 

*   *  *   *  else
*  ** *     *    **    * ***  *** * **    %d, Second Largest:   ***  ** *  * ***  *** 

    ****   *** return 0;
}

void **  ******  ** a[], int n, int *largest, int ***  *  **** 
{
 *  *** *** int i;
* * ***    *** **  *   * * * *** 

    * * *  * *   *   ***  **
* **   * ********** *** *
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*  *  * ** * *    **** *  *  * *     **   *   * **    ** ** *  * *****   * *
*  ****     * *   * *   *  *
}

trả lời ngày 4 tháng 1 năm 2018 bởi 410330002 (-16 điểm)
đã sửa ngày 17 tháng 1 năm 2018 bởi 410330002

林上智 · Answer 6 · 2018-01-03 16:21:34

Hidden content!
 ** ***        **

void    * *   ****** a[], int n, int   *     int  *** *   ***

int *  * ** 
{
  * *  ** *   int i,n,  ***  *  **   *****
***  ** *   *  ******  * * *  * *  *   * **       * will be entered
*** *   ***  int a[n];
  * * * * *   **   *** **** n    **  * ** *** by spaces
 *  *     ****** for ***  * *    *
 ******  *****   *** *  * *   **** *  *  ** *  **     * ***  **

*     ***     **  **  *  **** *    n,  **  * ** * * **** * ** * 

 * *** *   * *** *  if (n == 0)
*   *        *   *   *   * // Your code here
** ** * * *  * *  ***  ** *** //Print No numbers were *     
      *    * *     ***       *  *****  **   ** * numbers were  *** ***  *
 ****  *      * else if (n == 1)
   *  ** * **** *  **** * * **  *  // Your code here
    **  *    *** * *    *  *  * //Print Only one number was  ***  **    
  **  *   ** *  *    * **  *  * * * * ** **** one number was * *    *   *     * **   ** 
 *       ** *    * else
 *    * * ** ****** *   *** // Your code here
*  **      ***** *** *** * **** * //Print  ***   , Second ** * 

*  * **    ** ****** **** * ****   * *   ** *  **** **   *  ****  *   *  * ** %d, Second  *  *  ** * ** * ****  *  *  ** 

   ****   **** * return 0;
}

void *** ***    ** a[], int n, int ***  int *  *  * *   
{
 * * * ** * // Your code here (Using pointer to finish)
*   * *  * ***  *  int i;
********     *  ******** 
*    **** ***  ** ***  * **** **

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

}

trả lời ngày 3 tháng 1 năm 2018 bởi 林上智 (-32 điểm)
đã sửa ngày 3 tháng 1 năm 2018 bởi 林上智

fung2004067 · Answer 7 · 2017-12-30 21:44:05

Hidden content!
 *  ** * ****  ** 


//void **  *  *   * a[], int n, int  * * **  int   * ** ** * 

int    ******   largest, int  * *       
{
* ***   ** ***  return (largest == *  *  ** *
}

void ******* **  a[], int n, int* ***** int* ** *   * *
{
  *  **    * *** int i;
**       ***  * * int   * = a[0];
  *     * *   for(i = 0; i * **  n; i++)
 **  ** *    **   {
 ******   * **          * * ** **     if (a[i] >   * *
   *  *  * * ** * ***  *** *     * * ****    ** 
  ****     *** * *** *  ****    **    *  *** _largest = a[i];
  ** ** ** * *  ** ********* * ** ** *  * 
** *******  ***  }
* ** ** * ******    ** * =   *  *
 *  **  * * *  
    *   *   ** *  int *       = a[0];
*     * *****     **** *** * *  *** = 0; i   *  *  n; i++)
       *** **** ** *  **** 
   **     *  *    **   * *   ** * * *  *** if (a[i]  **** *   * **** * **   ** * **** != a[i])
* *  ** *  *  *  *   * **   * **   ** *  {
   *****  ******  * *    ** ** *  * **  *    **    *** *   ** = a[i];
*** **  * * *    * * * ** ** * }
  * ****    **** ** }
**    ** *     *****   * * = *   *
}


int * * ** 
{
   **  * int n,    **    * ** 
***  ***  *  * **     ***    * *  ** ***   *  * **   ** ** * ** * will be entered
 **    **  int a[n];
* * ***     ** ** **  **** * n      ** * * by spaces
 *   * *  **  *** int i;
 * ** * ** *   for (i = 0; i < n; i++)
**  ** *  ***  ****   *  * *** **  
       ******  ***   * **** ** ** **  ***   * **  ** *  ***  * *     **** *  *   ***
*  *  ***   * * ****  



* * ** **  *  * *** ** ** *** **  n, * *  ** * *** * **  ***    ** 
   *    * *   *   *  ****  
** **    * *        **      **** **  **** **  **   * *  n = 1;
**  * ****  ** **** *   *  * *
*   * *** ****  * if (n == 0)
 *   *   *** * ***** * ****** {
 **    **   * **** ***      ***  ***** ******    ** *** ** ** **   ***   numbers were **   ***  ** *
******* ** **   * **** *   * * }
* * *      * *  else if (n == 1)
   **  * **   * *  ******** * *  * {
** *     *** * *  *  ***      ***   *  *  * **** ** *  ** *   **   one number was entered. **** * * *   *  ***    
   *    * ** ***       ** *   * * * }
*    *    * ** *  else
* *  ****   ** *   **  *   * *   {
 **  *  *    * ** * ** ***        * ****   *  * *  ***       ***  * ** ** *   %d, Second *    *   *  *  ***   *  **
*  *** *  * ** *   * ** *   * ** }

  * * **    * ** *  return 0;
}

trả lời ngày 30 tháng 12 năm 2017 bởi fung2004067 (-214 điểm)

fung2004067 · Answer 8 · 2017-12-30 21:27:35

Hidden content!
** * *** *   ** **** *


//void   *    *** *** a[], int n, int * * * * int  *   *  * *  *


void  *** ** *****  a[], int n, int* **    int* **  ** 
{
   * ** **     int i;
   *** ***   **  *  int  * *  * = a[0];
** * *    **  for(i = 0; i * *   n; i++)
  **** * * *** {
*** *    * *    ****** *  *     if (a[i] > *** * **
*     *  *  ***    **   *  **     * * *  *   
       * *      * **    *   * * *  ****   _largest = a[i];
  ***  *   * *   * ***** *  ***** *  *  
* *****   *******   }
  *    **   *** * *  ** * =   ** 
  * ** *  ** *   * 
*    * * **** ** int  ** = a[0];
*   ***** **   *   *  * ***  = 0; i < n; i++)
***   ***   **** **  *    * 
   *  *  *** ****** * ** **  * *   *** **   if (a[i] >  **       *  * * ***  *** != a[i])
*  *    ** ***   **** *   *   ****   ***  *   *  {
** *  **** * * ** **   ***** *** * *    ******  ** **       * ***     ** = a[i];
  * ** **   * ** * * * **** * }
 *** *   ***  }
* *     ** *  **     * * ** **   =  **   
}


int  **  *
{
*   **  *   ***  int n, *    ***     
 ** ** ** *  *  ****** *** * **  ***  ** ** **  *  **  ****    * will be entered
*       * * *   int a[n];
 ** * **    *** ****   * *  * n        *  * ** by spaces
  **   * *** ** int i;
*   *   *  * for (i = 0; i * *   n; i++)
** ** ** ** * *** * **   *  *
**  **       *   * ** **** * ****   *  **  * **  ***    *****  * ****  *   **    ** **  
     * **   *  * ***    * **



  *** *  ** **    *  ** * *  n, *   ***    *    *  * *    *

***    ***   *  if (n == 0)
*  *   * *** **** ***   ***     {
  * * * *  * *  ******     ****   *  *  *        ** **  * *** ** numbers were * * * **  *
**      * *   * *       }
 * **  *  * **  else if (n == 1)
**   * *       *  * * *  ** ** {
* **    * **    *** **  *    *** ***  ***  **  *  *** ** ** ** *  * one number was  * * *   *** **   *  **   *  
*  *  *   *** ** ** ** ******* }
****      *   *** else
*****  *  * ***   **  *   *   {
  *   **    *  *    **  **  * **       ***** * **    **** * *** **  **** * %d, Second  ****** * ** ** * *      *  **  
** * **  * *   *  * **  **** }

  **  * * ***  return 0;
}

trả lời ngày 30 tháng 12 năm 2017 bởi fung2004067 (-214 điểm)

fung2004067 · Answer 9 · 2017-12-30 20:03:23

prog.c: In function 'find_two_largest':
prog.c:10:11: warning: comparison between pointer and integer
  if (a[i] > largest)
           ^
prog.c:12:16: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
        largest = a[i];
                ^
prog.c: In function 'main':
prog.c:40:14: warning: missing terminating " character
       printf("Only one number was entered. Largest:%d,&largest);
              ^
prog.c:40:14: error: missing terminating " character
       printf("Only one number was entered. Largest:%d,&largest);
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:41:3: error: expected expression before '}' token
   }
   ^
prog.c:41:3: error: expected ';' before '}' token
prog.c:44:14: warning: missing terminating " character
       printf("Largest: %d, Second Largest: %d,&largest, &second_largest);
              ^
prog.c:44:14: error: missing terminating " character
       printf("Largest: %d, Second Largest: %d,&largest, &second_largest);
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:45:3: error: expected expression before '}' token
   }
   ^
prog.c:45:3: error: expected ';' before '}' token

~~~~~~ · Answer 10 · 2017-12-28 17:25:24

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


void **  ** * *    a[], int n, int *largest, int  ****  * 
{
***  ** *****  
**** *     *** * if (n==0)
 *  **   *     * {
 *******   *** **      **      *****  *** *   numbers were     * ******  *
  **** ***  * }
 * *  * *   *   else if (n==1){
   ** * * * ***      *   * ** * * *
  *  **   *  *    *  **   *  ***  *****  * ***  * * 
* *   **    ** *   ***    ***  * ** * *  * *  *** one number was entered. Largest:    *  *    *  * 
* **  ** *   *   }
**   **  ** ***   else{
**     ***             ***    int i, **       * ** *
 *    *     **  ** * *  ****  *** * ***
 *  ***  *        *  ** ** *       * 
***      * *     *** * ** ***** for (i=0; **  **** i++)
*    *    *** *  *   *  **  {
       ***  * **  *     *   * *   *    ** ****  ***   ** *  ******
* **  **  ** * * * * * ***    *** * * *** *     ** *   * **  ******  **  **** **  
  ***** ** **   ** ****  *****  *    ** * * ***** }
**** ****  ****     ****       *   }
      ** *  * *   * * *** *  ** **  *
 **** *    *** *** * * * **    ** *   *** %i,      * *  * 

  **   * * *  *  **  *  **     for (i=0; *   *   i++){
 ** *  ****  *  **    * * * ** *    * *  *     * * * ** * **  *****  ***    **  ** *     *   *** ****  * 
 * **  **  *****  *** **     **  ***    * *    *** *  ****  *    ** **** ***    *****  * ****  *  *    * *
**** *  ******  *     * *  ** **** *       * **  *      *   }
* ** * **    *  **  **     * }
 *     *   ***   *  *   * * * *   * *  ***  *   ** *  ***   
  *       ** *      * *  ** ***     ***  ** *  *** * **     ** Largest: **  **       **   

***   *  **  * }
}

void ** *  **    ***  a[], int n, int *largest, int  ***   *** 

int *****
{


 ***   *  *  * *** int n, largest,  *  *******

*******  * ** *   *    *** * ** *  ***  **  
  * ** * *   *** int a[n];

    *         *****  for (int i = 0; i < n; i++)
** * **** ** *  *       *    * *  * * *         *** ** *  ** ** *  

** **  *   ***  * **  * **** n, ** *  ****  *   *** ***** ** 


     * ***** ** return 0;
}

trả lời ngày 28 tháng 12 năm 2017 bởi ~~~~~~ (-304 điểm)
đã sửa ngày 28 tháng 12 năm 2017 bởi ~~~~~~

12-21 Exercise 1: Finish the code to match the input and output. Pointer is required.

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