C Exercises: Convert decimal number to octal without using an array

C For Loop: Exercise-50 with Solution

Write a program in C to convert a decimal number into octal without using an array.

Pictorial Presentation:

Sample Solution:

C Code:

#include <stdio.h>

void main()
     {
     int n, i, j, ocno=0,dn;

     printf("\n\nConvert Decimal to Octal:\n ");
     printf("-------------------------\n");

     printf("Enter a number to convert : ");
     scanf("%d",&n);

     dn=n;
     i=1;

      for(j=n;j>0;j=j/8)
       {
        ocno=ocno+(j % 8)*i;
        i=i*10;
        n=n/8;
       }
     
     printf("\nThe Octal of %d is %d.\n\n",dn,ocno);
}

Sample Output:

Convert Decimal to Octal:                                                                                     
 -------------------------                                                                                    
Enter a number to convert : 79                                                                                
                                                                                                              
The Octal of 79 is 117. 

Flowchart:

C Programming Code Editor:

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