C Program to Segregate 0s on Left Side & 1s on right side of the Array

This C Program segregates 0s on left side & 1s on right side of the array.

Here is source code of the C Program to segregate 0s on left side & 1s on right side of the array. 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 Segregate 0s on Left Side & 1s on right side of the Array (Traverse Array only once)

```
 */
```
```
#include <stdio.h>
```
```
 
```

/*Function to segregate all 0s on left and all 1s on right*/

void segregate0and1(int array[], int size)

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{
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```
    int left = 0, right = size-1;
```
```
 
```
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    while (left < right)
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```
    {
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        /* Increment left index while we see 0 at left */

        while (array[left] == 0 && left < right)

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            left++;
```

        /* Decrement right index while we see 1 at right */

        while (array[right] == 1 && left < right)

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            right--;
```

        /* If left is smaller than right then there is a 1 at left and a 0 at right.  Exchange it */

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        if (left < right)
```
```
        {
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```
            array[left] = 0;
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            array[right] = 1;
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            left++;
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            right--;
```
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        }
```
```
    }
```
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}
```
```
 
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int main()
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```
{
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    int arr[] = {0, 1, 0, 1, 1, 0};
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    int array_size = 6, i = 0;
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    segregate0and1(arr, array_size);
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    printf("segregated array is ");
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    for (i = 0; i < 6; i++)
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        printf("%d ", arr[i]);
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    getchar();
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    return 0;
```
```
}
```

$ cc pgm96.c
$ a.out
segregated array is 0 0 0 1 1 1

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