Here is my code which gives TLE in c but is accepted in c++. How can i make it run within time limit in c as it is my preferred language.

include<stdio.h>

int main() { int test,n,count; scanf("%d",&test); while(test--) { count=0; int max=0,min=9999,maxi,mini; scanf("%d",&n); int arr[n],sum=0; for(int i=0;i<n;i++) { scanf("%d",&arr[i]); sum+=arr[i]; }
if(sum%n!=0) { printf("-1\n"); continue; } //printf("Min = %d Max = %d \n",min,max); do {

        max=0,min=9999;
        for(int i=0;i<n;i++)
        {

            if(arr[i]>=max) 
            {
                max=arr[i];
                maxi=i; 
            }
            if(arr[i]<=min)
            {
                min=arr[i];
                mini=i;
            }
        }
        int temp=(max-min+1)/2;
        //temp--;
        arr[mini]+=temp;
        arr[maxi]-=temp;
        count++;
    }while(max!=min);
    printf("%d\n",count-1);
}

}