C Program to Convert Octal to Binary

In this tutorial you will learn about the C Program to Convert Octal to Binary and its application with practical example.

In this tutorial, we will learn to create a C program that will Convert Octal to Binary in C programming.

Table Of Contents−

C Program to Convert Octal to Binary

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.

Basic Input and Output function in C Programming.
Basic C programming.

Program to Convert Octal to Binary:-

As we all know the c is a very powerful language. With the help of c programming language, we can make many programs. We cal perform many input-output operations using c programming. In today’s tutorial, we take the input in octal from the user and convert it into binary. With the help of c programming, we can perform many conversion operations.

With the help of this program, we can Convert Octal to binary.

Algorithm:-

1. Declare the variables for the program. 

2. Takeing the input number from from the user in octal for the program. 

3. Passing that input to the string function.

4. Pass that number to a for loop for convertion.  

4. Print the Result. 

5. End the program.

1. Declare the variables for the program.

2. Takeing the input number from from the user in octal for the program.

3. Passing that input to the string function.

4. Pass that number to a for loop for convertion.

4. Print the Result.

5. End the program.

Program to Convert Octal to Binary:-

#include <math.h>
#include <stdio.h>
long long convert(int oct);
int main() 
{
    //decalring the variable for the program
    int oct;
    //taking input from the user in octal number 
    printf("Enter an octal number: ");
    //scanning the octal number.
    scanf("%d", &oct);
    //result printing after convertion
    printf("%d in octal = %lld in binary", oct, convert(oct));
    return 0;
}
//function for converting the ocatl to decimal and then to binary.
long long convert(int oct) {
    int dec = 0, i = 0;
    long long bin = 0;

    // converting octal to decimal
    while (oct != 0) {
        dec += (oct % 10) * pow(8, i);
        ++i;
        oct /= 10;
    }
    i = 1;

   // converting decimal to binary
    while (dec != 0) {
        bin += (dec % 2) * i;
        dec /= 2;
        i *= 10;
    }
    return bin;
}

#include <math.h>

#include <stdio.h>

long long convert(int oct);

int main()

{

//decalring the variable for the program

int oct;

//taking input from the user in octal number

printf("Enter an octal number: ");

//scanning the octal number.

scanf("%d", &oct);

//result printing after convertion

printf("%d in octal = %lld in binary", oct, convert(oct));

return 0;

}

//function for converting the ocatl to decimal and then to binary.

long long convert(int oct) {

int dec = 0, i = 0;

long long bin = 0;

// converting octal to decimal

while (oct != 0) {

dec += (oct % 10) * pow(8, i);

++i;

oct /= 10;

}

i = 1;

// converting decimal to binary

while (dec != 0) {

bin += (dec % 2) * i;

dec /= 2;

i *= 10;

}

return bin;

}

Output:-

In the above program, we have first initialized the required variable.

oct = in will hold the integer value.

Taking the input.

Octal to decimal.

Decimal to binary.

Printing the binary data.

Main Function.

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C Program to Convert Octal to Binary