Here a simple C Program to Convert Hexadecimal to Octal and Vice Versa is given, which directly takes octal value from user or display the given number in octal format using %o string format. Similarly, you can directly takes hexadecimal value from user or display the number in hexadecimal format using %x string. This can be demonstrated by an example:
C Program to Convert Hexadecimal to Octal and Vice Versa
#include <stdio.h>
int main()
{
int n;
printf("Enter an octal number: ");
scanf("%o",&n); /*Takes number in octal format. */
/* %o and %x will display the number is octal format and hexadecimal form respectively. */
printf("%o in octal = %x in hexadecimal", n, n);
printf("\nEnter an hexadecimal number: ");
scanf("%x",&n); /* Takes number in hexadecimal format.*/
printf("%x in hexadecimal = %o in octal", n, n);
return 0;
}
Output
