如何从使用动态分配创建的数组中删除所有重复项？

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

int* removeDuplicates(int* nums, int numsSize, int* returnSize) {
    int* uniqueNums = (int*)malloc(numsSize * sizeof(int));
    int count = 0;
    
    for (int i = 0; i < numsSize; i++) {
        int isDuplicate = 0;
        
        for (int j = 0; j < count; j++) {
            if (nums[i] == uniqueNums[j]) {
                isDuplicate = 1;
                break;
            }
        }
        
        if (!isDuplicate) {
            uniqueNums[count] = nums[i];
            count++;
        }
    }
    
    *returnSize = count;
    return uniqueNums;
}

int main() {
    int nums[] = {1, 2, 3, 4, 2, 3, 5};
    int numsSize = sizeof(nums) / sizeof(nums[0]);
    int returnSize;
    
    int* uniqueNums = removeDuplicates(nums, numsSize, &returnSize);
    
    printf("Unique elements: ");
    for (int i = 0; i < returnSize; i++) {
        printf("%d ", uniqueNums[i]);
    }
    
    free(uniqueNums);
    
    return 0;
}