﻿ C Program: Move all zeroes to the end of a given array - w3resource

# C Exercises: Move all zeroes to the end of a given array

## C Array: Exercise-58 with Solution

Write a program in C to move all zeroes to the end of a given array.

Visual Presentation: Sample Solution:

C Code:

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

// Function to segregate zeros in an array to the right side
void PickOutZeros(int *arr1, int arr_size) {
int tmp, lft = 0, rgt = arr_size - 1;

// Loop until the pointers meet or cross each other
while (rgt > lft) {
// Move the left pointer until a non-zero element is found
while (arr1[lft] != 0)
lft++;

// Move the right pointer until a non-zero element is found
while (arr1[rgt] == 0)
rgt--;

// Swap the non-zero elements at the left and right pointers if left is less than right
if (lft < rgt) {
tmp = arr1[lft];
arr1[lft] = arr1[rgt];
arr1[rgt] = tmp;
}
}
}

int main() {
int arr1[] = {2, 5, 7, 0, 4, 0, 7, -5, 8, 0};
int n = sizeof(arr1) / sizeof(arr1);
int i;

//------------- print original array ------------------
printf("The given array is: ");
for (i = 0; i < n; i++) {
printf("%d ", arr1[i]);
}
printf("\n");
//------------------------------------------------------

// Function call to segregate zeros to the right side
PickOutZeros(arr1, n);

// Printing the new array after segregating zeros
printf("The new array is: \n");
for (i = 0; i < n; i++) {
printf("%d ", arr1[i]);
}

return 0;
}
```
```

Sample Output:

```The given array is :  2  5  7  0  4  0  7  -5  8  0
The new array is:
2 5 7 8 4 -5 7 0 0 0
```

Flowchart: C Programming Code Editor:

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