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

Question

12.4k 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 | 12.4k đã xem

58 Trả lời

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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)
{

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

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

  **  ***  * **** *** * ***  (n == 0)
*    *    **   *   * *    * **  ** **   ****    *** * ******  numbers were entered.");
* ** * *** * ***  ***  **  ** * *   ****     *    *   **  No numbers were entered.
* *       ****    **   *** ** ** if (n == 1)
 * ***  *** * *  * **  * **   **     ****  **************** *   * one number was entered. Largest: %d",largest);
*** **  ***** *   *  ***     * ***  * * *   * *     **  Only one number was entered. Largest:
*** * *** * *  **         **  *
 * * * * *    ** *   *   * ** *           ** *  * **   ***       * * *  %d, Second Largest: %d",largest,second_largest);
    * * **  **  *  *  ****  ***** ** ** **   * *****   Largest: , Second Largest:

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

void find_two_largest(int a[], int n, int *largest, int *second_largest)
{
***** * **   * *  *    * *  fir,sec;
 **  ** *   ****** * ** **   i;
*    ***  ** * *** * *  *  ( n == 1 ) {
 * *     * *   *   *         *** *   * * * * **  ** ****   *   = a[0] ;
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 ******** *** ****  **  
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    }
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*  **    **  ***** **** * ** * *** *    *  *    *  %d, Second Largest: %d\n",fir,sec);
}

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

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

***  * ****  ***   ** *     *   (n == 0)
* *     *  *    *** ** **   **   ** **** *  *  * * *    *   *   numbers were entered.");
   *     ** * *  **  * *** ** *  *  * ***   **   * **    ******   No numbers were entered.
*    * * *** **   ** * ** **** ****** if (n == 1)
    *** *****  *  *   **** *    * ****   ***** *  *  * *      *****  * one number was entered. Largest: %d",largest);
 * ** *  *** * * *****  * **   ** **     **  ** **** *** * **  Only one number was entered. Largest: 
*  **  * **   *   *  *  ** **   ***
** ***  * **  * *   *  *  ** ***  *   * ** * *** **** * *  * *  * ******  %d, Second Largest: %d",largest,second_largest);
*  *      *  *    **  **  ****  ****  ** * ** *   * * * Largest: , Second Largest:

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

void find_two_largest(int a[], int n, int *largest, int *second_largest)
{
 ** **** **  *** *** * * ***    *  ** fir,sec;
*   **  ****   *   * **  * i;
*********   *** **  *  ** * *  *   ( n == 1 ) {
 *  *  ** ** *****    ***   ** ***   ** **  *** *  ** *    ***  = a[0] ;
 *** * *  ****     ***  *  *** * **     * **  ******   * ;
 *   *****  ******* ***     **
*  **     *   *  *   *    * ** * **   **
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***  * *   **      *     * **  ** **** **  *    * ****  
      **   * ****** * **   *   ****   * * *** * * **   *
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   * * ****** ***   * ** **  * *     *   * %d, Second Largest: %d\n",fir,sec);
}

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

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

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

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

int   *** **
{
* *  *     ***  ** int n, *    *   * *   *
   ** * **   **  ******  * *** ***  * **   * * * will be * * *
*** *  **  *  * int  
* **  *  *** ** ***   * * *    ** n ** *****     *  * by  *  *
*  *  *      ** for (int i = 0; i * * * n; i++)
 ***   * ***    * *  **     *     ** * *  *  ** ** * ** *  *

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

 * **** **  **  ** if (n == 0)
    * *  * ****     * *   * *** *    * **   *    ** * were  *  * *** *  ***
* *  *  *  ***  *  else if (n == 1)
 *** *** * *     * **  * *  ** *** *     one    ** was   *  * *  * *    ***  * *  *
 *** **  ** * * else
*  *  *   * *  * *        * ***   * ***  *   *  %d, ** **    ***  * *  *  **  *** **   
**  **  *  *   *  0;
}

* **  *  *    *     * a[], int n, int    * int * *   ***  
{
*  *      * **   // Your code here **** ***** to  ***
*  *    * **  *  ** ***  i = 0; i * * ** n; i++)
*** ***    *  ** {
   * **    ** *    *  **   *      * ** j = i; j  * * n; j++)
*** * **    **     * * ****   {
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* *   **  **        * *  ** **    * **     * ***    * *** int temp =  * 

    *     *****    **  * **  ****  **  ** *** *   *  **  *   *  = **  

** **  * ***   ***    *    *  *  ****    *     ** *  * **  *  a[i] = *  **
**** * *     * *  *  *   *  * *** **  * }
      *  *  ** * *  * ***** }
*   ** * *** ***  }

    **    * * *  **  =    *

**  **** *** *      ** ** * = * *  
}

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

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

Hidden content!
* **      **    

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

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

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

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

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

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

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)
     ** *** **  ****  * * * * **  * *** * *  ***   ** *    *     numbers were  ****   *** ** 

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

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

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

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

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

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;
     ***    * ****  * **
*  *** * * *****  **  *   **  *** 

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

}

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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