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

Question

3k 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 | 3k 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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**  ***  * * * **    *****        **   *    * * %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;
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** *  *** *** * *** *  ** * (int i = 0; i < n; i++)
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   **  ***  ***  ***** ***  ** * *  **   **  ** ** ** *  *  *** No numbers were entered.
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** *** ***** *  * * ****  ****  * * * ** ******  **** *** *** * *  **      ** %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;
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** ****** * * ****** *  **  ** * **  *   *  * **** *   **  = a[0] ;
**  ***      *  **  *  **  * ** * * *  *  ***   **   ********* * ;
**** *  ** * *  * * *      *** 
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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!
****  *   ***   **  ** 

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

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

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

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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!
 *  *    * *   *** *

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++){
 *** * * ** *   ****** *** **   * *  *  ******    *   * ** *  * * *   
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      *   ** **  **    * *  *   * **   *** * **   ** ***    **** ** *    ** * **    = a[i];
   **** ***    * * *  *   * * * * *   * ** **** ** *   *** else if (a[i] * *  ***   *** *
*** * * **   **  *** * ***  **  *** * *   **** * *   ** ***** *  *****   ** * *** ****  *  **** * *  a[i]  ** ****  ***  *
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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)
 ***     *    *     ** * *      *    *  *     * *** **   ** *     *  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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