友友们帮我看这个怎么写呀？

Question

下面是我写的错误代码，友友们帮我看下正确的代码该怎么写呀(⊙o⊙)

#include <stdio.h>
int main ()
{
    float s,pay,tax;
    scanf("%1f",&s);
    if(s<0){ printf("error");
    }else{ if(s-5000>80000){
        tax=(s-5000)*0.45-15160;
    }else if(s-5000>55000 && s-5000<=80000){
        tax=(s-5000)*0.35-7160;
    }else if(s-5000>35000 && s-5000<=55000){
        tax=(s-5000)*0.30-4410;
    }else if(s-5000>25000 && s-5000<=35000){
        tax=(s-5000)*0.25-2660;
    }else if(s-5000>12000 && s-5000<=25000){
        tax=(s-5000)*0.20-1410;
    }else if(s-5000>3000 && s-5000<=12000){
        tax=(s-5000)*0.10-210;
    }else if(s-5000<=3000 && s-5000>0){
        tax=(s-5000)*0.03;
    }else if(s<=5000){
        tax=0;
    }
    pay=s-tax;
    printf("tax:%.21f,pay:%.21f\n",tax,pay);
    }
    
return 0;
}

Answer 1

#include <stdio.h>

int main() {
    double salary, tax, pay;
    scanf("%lf", &salary);
    if (salary < 0) {
        printf("error");
        return 0;
    }
    double base = salary - 5000;
    if (base <= 0) {
        tax = 0;
    } else if (base <= 3000) {
        tax = base * 0.03;
    } else if (base <= 12000) {
        tax = base * 0.1 - 210;
    } else if (base <= 25000) {
        tax = base * 0.2 - 1410;
    } else if (base <= 35000) {
        tax = base * 0.25 - 2660;
    } else if (base <= 55000) {
        tax = base * 0.3 - 4410;
    } else if (base <= 80000) {
        tax = base * 0.35 - 7160;
    } else {
        tax = base * 0.45 - 15160;
    }
    pay = salary - tax;
    printf("tax:%.2lf,pay:%.2lf", tax, pay);
    return 0;
}