EJ22

#include <iostream>
#include <conio.h>
#include <math.h>
using namespace std;

int main(){
	char a;
	int y,z;
	cout<<"Ingrese la escala de pago : "<<endl;
	cin>>a;
	cout<<"Ingresa el numero de cursos : "<<endl;
	cin>>y;
	z=350;
	switch (a){
			case 'a':if(y>=1&&y<=5){cout<<z+400<<endl;}
						 if(y>=6&&y<=8){cout<<z+600<<endl;}
						 if(y>=9){cout<<z+900<<endl;};break;
			case 'b':if(y>=1&&y<=3){cout<<z+350<<endl;}
						 if(y>=4&&y<=7){cout<<z+500<<endl;}
						 if(y>7){cout<<z+700<<endl;};break;
			case 'c':if(y>=1&&y<=3){cout<<z+320<<endl;}
						 if(y>=4&&y<=7){cout<<z+480<<endl;}
						 if(y>7){cout<<z+685<<endl;};break;
			case 'd':if(y>=1&&y<=4){cout<<z+310<<endl;}
						 if(y>=5&&y<=8){cout<<z+475<<endl;}
						 if(y>8){cout<<z+680<<endl;};break;
	}
	_getch();
}