IF_ELSE_Simple_calculator

//by Nicholas Tony Gomes
#include <stdio.h>
int main()
{
    double a,b;
    char chr;
    int counter;


    printf("Enter two numbers\n");
    scanf("%lf%lf",&a,&b);

    printf("Enter if you want to add subtract or multiply or divide\n");

    scanf(" %c",&chr);

    if(chr=='a'||chr=='A')
    {
        printf("%.2lf",a+b);

    }
    else if(chr=='s'||chr=='S')
    {
        printf("%.2lf",a-b);
    }
    else if(chr=='m'||chr=='M')
    {
        printf("%.2lf",a*b);
    }
    else if(chr=='d'||chr=='D')
    {
        printf("%.2lf",a/b);
    }
    else
    {
        printf("invalid input");
    }




    return 0;
}