Help me in solving SESO45 problem

help
,
1

My issue

this compiler is showing error message without any error in code which is specified in meg

My code

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

void countingSort(int arr[], int size) {
    if (size <= 0) return; // Handle empty or invalid input

    // Find the maximum value in the array
    int maxVal = arr[0];
    for (int i = 1; i < size; i++) {
        if (arr[i] > maxVal) {
            maxVal = arr[i];
        }
    }

    // Create a count array of size maxVal + 1 and initialize to 0
    int *count = (int *)calloc(maxVal + 1, sizeof(int));

    // Count the occurrences of each value
    for (int i = 0; i < size; i++) {
        count[arr[i]]++;
    }

    // Update the original array with sorted values
    int index = 0;
    for (int i = 0; i <= maxVal; i++) {
        while (count[i] > 0) {
            arr[index++] = i;
            count[i]--;
        }
    }

    // Free the allocated memory for count array
    free(count);
}

// Sample usage for testing the countingSort function
int main() {
    int n = 8; // Example size
    int arr[] = {6, 5, 3, 1, 8, 7, 2, 4}; // Example array

    countingSort(arr, n);

    // Print the sorted array
    for (int i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
    printf("\n");

    return 0;
}

Learning course: Design and analysis of Algorithms
Problem Link: https://www.codechef.com/learn/course/abesit-daa/ABESITDA23/problems/SESO45