0 like 0 dislike
6.6k views

Write a function num_digits(n) that returns the number of digits in n ( a positive integer). Hint: to determine the number of digits in a number n, divide it by 10 repeatedly. when n reaches 0, the number of divisions indicates how many digits n originally had.

寫一個num_digits(n)函數 計算n有幾位數

#include <stdio.h>
int num_digits(int n)
{
   /*INSERT YOUR CODE HERE*/

   /*在這裡寫你的程式*/
   /*END OF YOUR CODE*/
}

int main(void)
{
   int n;
   scanf("%d", &n);
   printf("%d has %d digit(s)",n,num_digits(n));
   return 0;
}

Please complete this program by only insert your code between those tags:

   /*INSERT YOUR CODE HERE*/ 
   /*END OF YOUR CODE*/

Example input

12347

Example output

12347 has 5 digit(s)

Remember: You may correct the cases, but your code always be revised!

[Exercise] Coding (C) - asked in Chapter 9: Functions by (5.2k points)
ID: 35784 - Available when: 2017-12-07 18:00 - Due to: Unlimited

edited by | 6.6k views

45 Answers

0 like 0 dislike
Hidden content!
#include ** *** * *
int num_digits(int n)
{
** * * * * digit=0;
* * *** ** *
* * * * *
* * *** * * * ** ** ** * * /=10;
* * * ** ** * * * * ** ** * * *
**** ** ***** *
* * ** * * *** * * * digit;
}

int main(void)
{
** ** * ** *** * n;
* * * *** ****** *** **** * ** &n);
* *** * * * ** * * * *** ** has %d **** ** *** *** * ****
* * * * * * * 0;
}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include ***** * * **
int num_digits(int n)
{
*** * * * * * * digit=0;
* ** * * *** * ** * (n!=0)
* *** * * ** **
* * * ** * * ** * * * ** **** * **
** ** *** ** ** ** ** ** * * * ** * *
*** *** ****** *
* ***** * ** * *** digit;
}

int main(void)
{
** ** * *** * * n;
* ** *** **** ** * * ** * ** * &n);
***** * **** ** **** * has %d * **** **** * **
**** *** * * * * * ** * 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include **** * **** ***
int num_digits(int n)
{
** *** *** * * count=0;
* * ** * * **** * ****
* * * *
*** * ***** *** **** ** *
* ** * ** * **** * *
* ** * **** *
********* count;
}

int main(void)
{
** * ****** * * * n;
**** ** *** * * * *** * ** &n);
* * ********** ****** *** ** has %d ** * * * ***** *
** * **** ** * ***** 0;
}
answered by (-32 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
** ******* * * ** * *** a;
** * * * ** ** * * ***** sum=0;
****** * *** *** * i=0;
** * **** **** * * * * ** *** * *** **
* * * ** ** ****** ** (a!=0)
** * * ** * **** *
* * *** ** * ** *** * ** ** *** *** * **** += a%10;
*** * * ** ** * * * * ***** ** *** * * *** * *
* * ** ** ** **** **** *** * * ** *** **
* ** ***** *** ** * ***
** * ***** **** ** ** * * * ** ** * has %d digit(s)",a,sum);
* ** * ** * ** * ** ** 0;
}
answered by (-127 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
* ** * *** *** a;
* * *** **** **** sum=0;
** * **** ** ** ****** i=0;
* **** * **** * * ** ** * * **
*** * * * ***** *** *** * (a!=0)
*** * * *** ** ** ***
***** *** ** *** ** ** * * * ** * * **** += a%10;
** **** *** * * * *** * ** * * * *
* *** * * ** ** * * * ** *** * *
* * ** ** ** * * *
** * * *** ** * ** * * * * ** %d",i,sum);
* * ** *** * *** * 0;
}
answered by (-127 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int num_digits(int n)
{
***** * * * *** * * i=0;
********* * ** * * *** ***
** * ***** * *
** *** ** * * * * ** * * ** * * ** * ****
* *** ** **** ******** ** * * ** *
* * * *** *
** ***** * *** ***** * *
}

int main(void)
{
* *** **** ** ** n;
*** * * *** ****** ** ** ** ** ***** &n);
*** ** ** * ** *** * * ** * has %d *** **** ** *** ****
***** * * ** ***** 0;
}
answered by (-255 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int num_digits(int n)
{
****** ** * * ** ** i,c=0;
**** * ** * **** ** ** * * *
* ** ** ******* ** ** ** ** *** * * * * **** * *
* * * * **** ** **** * ** * * ***** * ** * * * * ** * * ** ** **
* ** *** ** * * ** * * *** * ** * * ** ** * ****** * ** * ***
** ****** * *** *** ** * ** * * *** * ****** * * * ****** * * * ** ** * * * ** ***
****** * ** * * * * ** **** * * * * ** ***
* * * *** * ** ** * *** ** * ** * *
***** **** ** * * ***** *** * * * * * * **** * * **** ** *** *
***** * * ** ** * * * * * * *** *** * * ***** * ** * *
* *** *** * ** ** ** *** * * *** ** ** * *****
    }

* * ** ** * * * c;
}

int main(void)
{
   int n;
******** ******* ** * ** ***** * &n);
* ** * ** * **** **** * * has %d digit(s)",n,num_digits(n));
   return 0;
}
answered by (54 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int num_digits(int n)
{
** ** ** ** * * i,c=0;
* *** ** *** *** **** * * ** *** *
** * * ** ****** *** ** * ** * * * ** ****** ***
* **** * * * ** * * ** ** ** *** **** ** * * * * ******* ** ** *
**** * * *** ** ** * * ** ** ** * *** * * ** * * ** ** *** *
* * *** * ** * * *** * * * * * * * ** * ** * * ** * ** ** ** *** * * *
*** * * * ** ** * * ** * *** * * * ** * *
** ** * ** * * ** ****** ** * ****** *
***** ***** *** * * * *** ** ** * * * ** ******* * * * * ** **** ***
***** ** **** * * * ** * * * *** ** ***** ***
* ** **** * ** *** * *

* **** ** * ** * ** c;
}

int main(void)
{
   int n;
**** * ** ** * ** * ** * * * * &n);
* * * ** * * **** ** * has %d digit(s)",n,num_digits(n));
   return 0;
}
answered by (54 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 0
#include <stdio.h>
int num_digits(int n)
{
    int i,c=0;
    for(i=1;i<100;i++){
        if(n/10!=0){
            n=n/10;
            c++;
            //printf("%d\n",n);
        }
        else{
            c++;
            break;
        }
    }

    return c;
}

int main(void)
{
   int n;
   scanf("%d", &n);
   printf("%d has %d digit(s)",n,num_digits(n));
   return 0;
}
0 like 0 dislike
Hidden content!
#include <stdio.h>
int num_digits(int n)
{
   int a;
*** * * ** * **** ** *
* *** * * ** * ** * ** * *
*** ** ** ** ** *** * ** * * * ** * * * **** ***** * ** ** * ** **
** **** * * * * * * ****** *** ***** * * * * * * *
** * * ** * * * * *** ** *** * * **** * * * * ******** * * a;
** * ** * * * ** * *** ******* * * * *
}

int main(void)
{
*** * * ** * n;
**** ** * * ******* ** * ** * &n);
* * ** * *** ****** ** has %d ** ***** ***
** * * **** ******* 0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
** ****** * *** ****
int ***** * n)
{
* *** * * ** YOUR CODE HERE*/
int sum=0;
* * * ** **
*** ** *
** *** * * ** *
* *** **
****** *
* * * * * *
return sum;


*** * ** ******* * OF YOUR CODE*/
}

int **
{
** * * ** ** n;
***** ** *** * *** * ** * ** * *
**** ** * *** * * ** has %d ****** * * **** *
** * * * ** 0;
}
answered by (-336 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.126.81
©2016-2025

Related questions

0 like 0 dislike
47 answers
[Exercise] Coding (C) - asked Dec 7, 2017 in Chapter 9: Functions by semicolon (5.2k points)
ID: 35785 - Available when: 2017-12-07 18:00 - Due to: Unlimited
| 6.2k views
0 like 0 dislike
79 answers
[Exercise] Coding (C) - asked Dec 28, 2017 in Chapter 9: Functions
ID: 39986 - Available when: Unlimited - Due to: Unlimited
| 12.6k views
0 like 0 dislike
70 answers
[Exercise] Coding (C) - asked Dec 7, 2017 in Chapter 9: Functions by semicolon (5.2k points)
ID: 35783 - Available when: 2017-12-07 18:00 - Due to: Unlimited
| 9.5k views
0 like 0 dislike
50 answers
[Exercise] Coding (C) - asked Dec 13, 2017 in Chapter 9: Functions by semicolon (5.2k points)
ID: 37278 - Available when: 2017-12-14 18:00 - Due to: Unlimited
| 8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users