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Program to Convert Octal to Decimal



Program to Convert Octal to Decimal

C Program to Convert Octal Number to Decimal and vice-versa

#include <stdio.h>
#include <math.h>

long long convertOctalToDecimal(int octalNumber);
int main()
{
    int octalNumber;

    printf("Enter an octal number: ");
    scanf("%d", &octalNumber);

    printf("%d in octal = %lld in decimal", octalNumber, convertOctalToDecimal(octalNumber));

    return 0;
}

long long convertOctalToDecimal(int octalNumber)
{
    int decimalNumber = 0, j = 0;

    while(octalNumber != 0)
    {
        decimalNumber += (octalNumber%10) * pow(8,j);
        ++j;
        octalNumber/=10;
    }

    j = 1;

    return decimalNumber;
}

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