[CCF] 201612-2 工资计算

 

【思路】按照题意对初始工资S进行循环，计算缴税后工资，若与T相等则退出循环，输出结果。

#include <iostream>
#include <windows.h>
using namespace std;
int main()
{
    int T;
    cin>>T;
    if(T < 3500)
    {
        cout<<T<<endl;
        return 0;
    }
    int x = 0;      //扣的钱
    int S = 200000; //未缴税的工资
    int A = S - 3500;
    while(true)
    {
        if(A <= 1500)
            x = A * 0.03;
        else if(A <= 4500)
            x = 45 + (A - 1500) * 0.1;
        else if(A <= 9000)
            x = 45 + 300 + (A - 4500) * 0.2;
        else if(A <= 35000)
            x = 45 + 300 + 900 + (A - 9000) * 0.25;
        else if(A <= 55000)
            x = 45 + 300 + 900 + 6500 + (A - 35000) * 0.3;
        else if(A <= 80000)
            x = 45 + 300 + 900 + 6500 + 6000 + (A - 55000) * 0.35;
        else
            x = 45 + 300 + 900 + 6500 + 6000 + 8750 + (A - 80000) * 0.45;
        if(S == x + T)
            break;
        S = S - 100;
        A = S - 3500;
    }
    cout<<S<<endl;
    return 0;
}