【leetcode】Fizz Buzz

char ** fizzBuzz(int n, int* returnSize){
    char** arr = (char**)calloc(n+1,sizeof(char*));
//     const char* s35 = "FizzBuzz";
//     const char* s3 = "Fizz";
//     const char* s5 = "Buzz";
    for (int i=0; i<n; i++)
    {
        arr[i] = (char*)calloc(20,sizeof(char));
        if ((i+1)%3==0 && (i+1)%5==0)
            arr[i] = "FizzBuzz";
        else if((i+1)%3==0)
            arr[i] = "Fizz";
        else if((i+1)%5==0)
            arr[i] = "Buzz";
        else
            sprintf(arr[i],"%d",i+1);
    }
    *returnSize = n;
    return arr;
}