# C Exercises: Find the maximum repeating number in a given array

## C Array: Exercise-81 with Solution

Write a program in C to find the maximum repeating number in a given array. The array range is [0..n-1] and the elements are in the range [0..k-1] and k<=n.

**Sample Solution:**

**C Code:**

```
#include <stdio.h>
// Function to find the number with maximum repetition
int numToRepeatMax(int* arr1 , int n, int k) {
int mx = arr1[0], result = 0;
// Adjusting the elements in the array to identify the maximum repeating element
for (int i = 0; i < n; i++)
arr1[arr1[i] % k] += k;
// Finding the number with the maximum repetition
for (int i = 1; i < n; i++) {
if (arr1[i] > mx) {
mx = arr1[i];
result = i;
}
}
return result;
}
int main() {
int arr1[] = {2, 3, 3, 5, 3, 4, 1, 7, 7, 7, 7};
int n = sizeof(arr1) / sizeof(arr1[0]);
int i;
// Printing the original array
printf("The given array is: \n");
for (i = 0; i < n; i++) {
printf("%d ", arr1[i]);
}
printf("\n");
int k = 8; // Given value 'k'
printf("The maximum repeating number is: %d", numToRepeatMax(arr1, n, k)); // Finding and printing the number with maximum repetition
return 0;
}
```

Sample Output:

The given array is: 2 3 3 5 3 4 1 7 7 7 7 The maximum repeating number is: 7

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