C Program to Convert Decimal Number to Octal

 program:

#include <stdio.h>

 int main()

 {

 long decimalnum, remainder, quotient;

 int octalNumber[100], i = 1, j;

 

 printf("Enter the decimal number: ");

 scanf("%ld", &decimalnum);

 quotient = decimalnum;

 while (quotient != 0)

 {

 octalNumber[i++] = quotient % 8;

 quotient = quotient / 8;

 }

 printf("Equivalent octal value of decimal no %d: ", decimalnum);

 for (j = i - 1; j > 0; j--)

 printf("%d", octalNumber[j]);

 return 0;

 }

output: