C Program to Convert Decimal Number into Octal

//C program to convert decimal to octal 
#include <stdio.h>
 
int main()
{
    long decinum, remainder, quotient;
    int octnum[100], i = 1, j;
 
    printf("Enter the decimal number: ");
    scanf("%ld", &decinum);
    quotient = decinum;
    while (quotient != 0)
    {
        octnum[i++] = quotient % 8;
        quotient = quotient / 8;
    }
    printf("Equivalent octal value of decimal no %d: ", decinum);
    for (j = i - 1; j > 0; j--)
        printf("%d", octnum[j]);
    return 0;
}