# Segregate 0’s and 1’s in an array

## Segregate 0’s and 1’s in an array in C

Here, in this section we will discuss the C program for segregate 0’s and 1’s in an array :

Given an array with 0’s and 1’s, we are segregating the 0’s and 1’s.

INPUT
0 1 0 1 1 1 1 1 0 1 1 0 0 1 0 1

OUTPUT
0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1

## Algorithm :

• Take the size of an array from the user and store it in variable N.
• Declare an array of N size and take the N elements of the array from the user.
• Declare one array of size 2 say count[2] for counting the frequency of 0’s and 1’s respectively.
• Now, print the elements on the basis of their counts in the count[2] array.

## Code based on above algorithm

`#include <stdio.h>int main(){     int N;   scanf("%d", &N);   int count[2]={0}, arr[N];      for(int i=0; i<N; i++){              scanf("%d", &arr[i]);       count[arr[i]]++;   }      int i=0;      for(int j=0;j<count[i];j++)    printf("%d ", i);      return 0;}`
`Input :0 1 0 0 1 1 1 0 1 1Output :0 0 0 0 1 1 1 1 1 1`