ccf工资计算（打表）

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
unordered_map<int,int>mp;
int m[10];
void init(int x){
	if(x<=3500){
		mp[x]=x;
		return ;
	}
	int high=x-3500;
	int  ans;
	if(high<=1500){
		ans=x-high*3/100;
	}else if (high>1500&&high<=4500){
		ans=x-m[0]-(high-1500)*10/100;
	}
	else if(high>4500&high<=9000){
		ans=x-m[0]-m[1]-(high-4500)*20/100;
	}
	else if(high>9000&&high<=35000){
		ans=x-m[0]-m[1]-m[2]-(high-9000)*25/100;
	}
	else if(high>35000&&high<=55000){
		ans=x-m[0]-m[1]-m[2]-m[3]-(high-35000)*30/100;
	}
	else if(high>55000&&high<80000){
		ans=x-m[0]-m[1]-m[2]-m[3]-m[4]-(high-55000)*35/100;
	}
	else {
		ans=x-m[0]-m[1]-m[2]-m[3]-m[4]-m[5]-(high-80000)*45/100; 
	}
	mp[ans]=x;
	return;
}
int main(){
    int T;	
    cin>>T;
	m[0]=15*3;
	m[1]=(45-15)*10;
	m[2]=(90-45)*20;
	m[3]=(350-90)*25;
	m[4]=(550-350)*30;
	m[5]=(800-550)*35;
	for(int i=100;i<=100000;i+=100){
		init(i);
	}
	cout<<mp[T]<<endl;
	return 0;
}

简单易懂的方法

#include<bits/stdc++.h>
using namespace std;
double a[8]={0,3500,3500+1500,3500+1500+3000,3500+1500+3000+4500,
        3500+1500+3000+4500+26000,3500+1500+3000+4500+26000+20000,
		3500+1500+3000+4500+26000+20000+25000};//税前值 
double b[8];//税后值 
double rax[8]={0,0,0.03,0.1,0.2,0.25,0.3,0.35};//税率 
int main()
{
	int t,rank;
	double val,s;
	cin>>t;
	memset(b,0,sizeof(b));
	for(int i=1;i<=7;i++)
	{
		b[i]+=b[i-1];
		b[i]+=((a[i]-a[i-1])-((a[i]-a[i-1])*rax[i]));
	}
	
	if(t>b[7])
	{
		val=(t*1.0-b[7])/(1-0.45);
		s=a[7]+val;
	}
	else
	{
		for(int i=1;i<=7;i++)
	{
		if(t<=b[i])
		{
			rank=i;
			break;
		}
	}
	//cout<<"rank="<<rank<<endl; 
	val=(t*1.0-b[rank-1])/(1-rax[rank]);
	s=a[rank-1]+val;
	}
	
	int k=(int)s;
	cout<<k<<endl;
	return 0;
}