/*
Thaneeshan Kethees
Woburn Collegiate Institute
ACSL 2014-2015, Contest #1
Intermediate Division
Program: Time Sheets
*/
#include <iostream>
using namespace std;
long double Loc, Day, Tot, Pay, BBeg, EEnd, Hur, a, b, c, d, e, f, g, z, x;
string Beg, End;
int main() {
for(z=0;z<5;z++){
Tot=0;
for(x=0;x<2;x++){
cin >> Loc >> Day >> Beg >> End;
if (Beg=="1")
BBeg=1;
if (Beg=="2")
BBeg=1.5;
if (Beg=="3")
BBeg=2;
if (Beg=="4")
BBeg=2.5;
if (Beg=="5")
BBeg=3;
if (Beg=="6")
BBeg=3.5;
if (Beg=="7")
BBeg=4;
if (Beg=="8")
BBeg=4.5;
if (Beg=="9")
BBeg=5;
if (Beg=="A")
BBeg=5.5;
if (Beg=="B")
BBeg=6;
if (Beg=="C")
BBeg=6.5;
if (Beg=="D")
BBeg=7;
if (Beg=="E")
BBeg=7.5;
if (Beg=="F")
BBeg=8;
if (Beg=="G")
BBeg=8.5;
if (Beg=="H")
BBeg=9;
if (End=="1")
EEnd=1;
if (End=="2")
EEnd=1.5;
if (End=="3")
EEnd=2;
if (End=="4")
EEnd=2.5;
if (End=="5")
EEnd=3;
if (End=="6")
EEnd=3.5;
if (End=="7")
EEnd=4;
if (End=="8")
EEnd=4.5;
if (End=="9")
EEnd=5;
if (End=="A")
EEnd=5.5;
if (End=="B")
EEnd=6;
if (End=="C")
EEnd=6.5;
if (End=="D")
EEnd=7;
if (End=="E")
EEnd=7.5;
if (End=="F")
EEnd=8;
if (End=="G")
EEnd=8.5;
if (End=="H")
EEnd=9;
Hur=EEnd-BBeg;
if (Loc>99 && Loc<200){
if(Hur>5)
Pay=50+((Hur-5)*15);
else
Pay=Hur*10;
}
else if (Loc>199 && Loc<300){
if(Hur>6)
Pay=45+((Hur-6)*15);
else
Pay=Hur*7.5;
}
else if (Loc>299 && Loc<400){
if(Hur>4)
Pay=37+((Hur-4)*10.5);
else
Pay=Hur*9.25;
}
else if (Loc>399 && Loc<500){
if(Day==1 || Day==7)
Pay=Hur*13.5;
else
Pay=Hur*6.75;
}
else if (Loc>499 && Loc<600){
if(Hur>6)
Pay=48+((Hur-6)*12);
else
Pay=Hur*8;
}
Tot=Tot+Pay;
}
cout.precision(2);
cout << "$" << fixed << Tot << endl;
}
}
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