C Program to find the largest/max value in an array

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

int main()
{
    int i,num;
    printf("Enter the size of the array  :");
    scanf("%d", &num);

    float arr[num], max;

    printf("enter elements in the array : ");

    for(i=0; i<num ; i++)
    {
        scanf("%f", &arr[i]);
    }

    max= arr[0];

    for(i=1; i < num ; i++)
    {
        if(max<arr[i])
        {
            max=arr[i];
        }

    }
    printf("maximum value : %.2f", max);
}