Hacker rank day 2

#include <stdio.h>
int main ()
{
    double meal,cost1,tipA,taxA;
    int tip,tax,cost2;
    double num = 23.345;

    scanf("%lf",&meal);
    scanf("%d %d",&tip,&tax);

    tipA = meal * ((tip+0.00)/100);
    taxA = meal * ((tax+0.00)/100);
    cost1 = meal + tipA + taxA;

    int intpart = (int)cost1;
    double decpart = cost1 - intpart;

    if(decpart > 0.5)
    {
        intpart = intpart + 1;

    }
    printf("The total meal cost is %d dollars.",intpart);

    return 0;
}