How to find greatest of 3 numbers without using leader or nested if-else?

CODE

How to find greatest of 3 numbers without using leader or nested if-else?

int main()

{

    int a,b,c,max;

    printf("\n enter the value of a,b,c=");

    scanf("%d%d%d",&a,&b,&c);

    if(a>b)

        max=a;

    else

        max=b;

    if(c>max)

        max=c;

    printf("\n greatest number=%d",max);

}

Output:

enter the value of a,b,c=

3

5

7

 greatest number=7