0 like 0 dislike
8.4k 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 | 8.4k 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:172.70.100.83
©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
| 8.1k 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
| 16.3k 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
| 12.2k 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
| 10.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users