Octal to Decimal Conversion

1#include <stdio.h>
2#include <math.h>
3
4int main() {
5    int octal, decimal = 0, i = 0;
6    
7    printf("Enter an octal number: ");
8    scanf("%d", &octal);
9    
10    int original = octal;
11    
12    while (octal != 0) {
13        int digit = octal % 10;
14        decimal += digit * pow(8, i);
15        octal /= 10;
16        i++;
17    }
18    
19    printf("Octal %d = Decimal %d\n", original, decimal);
20    
21    // Using scanf with format specifier
22    printf("\nVerification using %%o: ");
23    int verify;
24    sscanf("101", "%o", &verify);
25    printf("Octal 101 = Decimal %d\n", verify);
26    
27    return 0;
28}