Convert Octal to Decimal Program in C++

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C++ program to Convert Octal to Decimal

To convert octal number to decimal number in C++ programming, we have to ask to the user to enter the octal number to convert it into decimal number to display the equivalent value in decimal format on screen.

Example

Input Octal Number : 26
Euivalent Decimal Number : 22

Input Octal Number : 10
Euivalent Decimal Number : 8

Input Octal Number : 15
Euivalent Decimal Number : 13

C++ program to convert Octal to Decimal

#include<iostream.h>
#include<conio.h>
#include<math.h>

void main()
{
    int num, temp, rem, oct = 0, i = 0;
    clrscr(); 
    cout<<"Enter any 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;
    getch();
}

Output

Enter any Octal Number : 10
Decimal Equivalent of 10 is 8
c++ program to convert octal to decimal
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