﻿ C Program: Find the two repeating elements in a given array - w3resource

# C Exercises: Find the two repeating elements in a given array

## C Array: Exercise-44 with Solution

Write a program in C to find the two repeating elements in a given array.

Visual Presentation:

Sample Solution:

C Code:

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

// Function to find and display the elements that are repeated in the array
void find2RepetElement(int arr1[], int arr_size) {
int i, j;
printf("The repeating elements are: ");
for(i = 0; i < arr_size; i++) {
for(j = i + 1; j < arr_size; j++) {
if(arr1[i] == arr1[j]) {
printf(" %d ", arr1[i]);
}
}
}
}

int main() {
int arr1[] = {2, 7, 4, 7, 8, 3, 4};
int ctr = sizeof(arr1) / sizeof(arr1[0]);
int i;

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

// Find and display the repeating elements in the array
find2RepetElement(arr1, ctr);
return 0;
}
```
```

Sample Output:

```The given array is :  2  7  4  7  8  3  4
The repeating elements are:  7  4
```

Flowchart:

C Programming Code Editor:

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