C++ Program to Convert Gray Code to Binary Code

This C++ program which converts given Gray Code to Binary Code. Both the codes can be stored in a character string. The Binary Code is formed as follows: The most significant bit is same for both, the bit value of next position of Gray Code and previous Binary Code are XORed and stored in next position of Binary Code until we reach the end of Gray Code string.

Here is the source code of the C++ program which converts the given Gray Code to Binary Code. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
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 * C++ Program to Convert Gray Code to Binary Code

```
 */
```
```
 
```
```
#include <iostream>
```
```
#include <string>
```
```
 
```
```
int main(int argc, char* argv[])
```
```
{
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    std::string gray, binary;
```
```
 
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    std::cout << "Enter the gray code ";

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    std::cin >> gray;
```
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    binary = gray[0];
```

    for (int i = 0; i < gray.length() - 1; i++)

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    {
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        /* XOR operation */
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        if (binary[i] == gray[i+1])
```
```
            binary = binary + "0";
```
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        else
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```
            binary = binary + "1";
```
```
    }
```

    std::cout << "Gray Code : " << gray << std::endl

              << "Binary Code : " << binary << std::endl;

```
    return 0;       
```
```
}
```

$ a.out
Enter the gray code 1000
Gray Code : 1000
Binary Code : 1111
$ a.out
Enter the gray code 0101
Gray Code : 0101
Binary Code : 0110

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