Octal to Decimal number in C program

Octal to Decimal 

       

#include 
#include 

int main()
{

    printf("\nCovert Octal number to Decimal number");

    int num;
    printf("\nInput Octal number:");
    scanf("%d",&num);

    int dec_value = 0;
    int base = 1;
    int temp = num;

    while (temp){
        int last_digit = temp % 10;
        temp = temp /10;
        dec_value += last_digit *base;
        base = base * 8;
    }

    printf("\nThe result of Decimal is %d\n",dec_value);

    return 0;
}

       
 

Output