669. 加薪（C++语法题）

#include <cstdio>
#include <iostream>
using namespace std;

int main()
{
    double salary;
    scanf("%lf",&salary);
    
    double x;
    
    if (salary <= 400) x= 0.15;
    else if (salary <= 800) x= 0.12;
    else if (salary <= 1200) x= 0.1;
    else if (salary <= 2000) x= 0.07;
    else x = 0.04;
    
    printf("Novo salario: %.2lf\n",salary * (1 + x));
    printf("Reajuste ganho: %.2lf\n",salary * x);
    printf("Em percentual: %.0lf %%",x * 100);
    
    return 0;
}