C++ Program to convert Octal to decimal number using while loop.

Flowchart to convert Octal to decimal number using while loop in C++

C++ Program to convert Octal to decimal number using while loop

#include <iostream>
#include <math.h>
using namespace std;
int main()
{
    int num, temp, rem, oct = 0, i = 0;
    cout << "Enter an octal number : ";
    cin >> num;
    temp = num;
    while(temp != 0)
    {
        rem = temp % 10;
        oct += rem * pow(8, i++);
        temp = temp / 10;
    }
    cout << "\nDecimal equivalent of " << num << " is : " << oct;
    return 0;
}

#include <iostream>

#include <math.h>

using namespace std;

int main()

{

int num, temp, rem, oct = 0, i = 0;

cout << "Enter an octal number : ";

cin >> num;

temp = num;

while(temp != 0)

{

rem = temp % 10;

oct += rem * pow(8, i++);

temp = temp / 10;

}

cout << "\nDecimal equivalent of " << num << " is : " << oct;

return 0;

}

Output

Enter an octal number :

Decimal equivalent of 7 is 7.

Let’s see the declarations flow table of the program.

VARIABLE	DECLARATION (LINE NO)	INITILIZATION (LINE NO)	USE (LINE NO)
NUM	6	12,8	16,
TEMP	6,10	14,9	12,14
REM	6	12	13,
OCT	6	6,13	16
i	6	6,13	13

Flowchart to convert Octal to decimal number using while loop in C++

C++ Program to convert Octal to decimal number using while loop

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