The question is:

Used c++ to solve, write a program that computes the cost of a long-distance call. The cost of the call is determined according to the following rate schedule: Any call started between 8:00 A.M. and 6:00 P.M., Monday through Friday, is billed at a rate of $0.40 per minute. Any call starting before 8:00 A.M. or after 6:00 P.M., Monday through Friday, is charged at a rate of $0.25 per minute. Any call started on a Saturday or Sunday is charged at a rate of $0.15 per minute. The input will consist of the day of the week, the time the call started, and the length of the call in minutes. The output will be the cost of the call.

Notes: 1. The time is to be input as 4 digit number, representing the time in 24-hour notation, so the time 1:30 P.M. is input as 1330 2. The day of the week will be read as one of the following three character string: Mon, Tue, Wed, Thr, Fri, Sat or Sun 3. The number of minutes will be input as a positive integer.

For example, an execution could look like this: Enter the day the call started at: Fri Enter the time the call started at (hhmm): 2350 Enter the duration of the call (in minutes): 22 This call will cost $5.50

Score

There are five tests each worth 2 points

And my answer is:

#include using namespace std; int main () { int duration, startTime; string Day; double cost, rate;

cout << "Enter the day the call started at : "; cin >> Day;

cout << "Enter the time the call started at (hhmm) : "; cin >> startTime;

while (startTime < 0 || startTime >= 2400) { cout << endl << "Invalid Time" << endl; cout << "Enter the time the call started at (hhmm) : "; cin >> startTime; }

cout << "Enter the duration of the call : "; cin >> duration;

if (Day == "Mon" || Day == "Tues" || Day == "Wed" || Day == "Thr" || Day == "Fri") { if (startTime >= 800 && startTime <= 1800) // Any call starting before 8:00 A.M. or after 6:00 P.M rate = 0.4; else rate = 0.25;

cost = duration * rate;

cout << endl << "Call Rate = " << "$" << rate << " per min" << endl << "This call will cost " << "$" << cost << endl; } else if (Day == "Sat" || Day == "Sun") { rate = 0.15; cost = duration * rate; cout << endl << "Call Rate = " << "$" << rate << " a minute" << endl << "This call will cost " << "$" << cost << endl; } else cout << endl << "Invalid Entry!" << endl; // if Input day is invalid

cout << endl << "---End of Program---" << endl; return 0; }

But the system showed that:

Evaluating Test 1 Output (0.0/2.0)

Test Failed: 'enter the day the call started at : enter[139 chars]m---' != 'this call will cost $5.50' - enter the day the call started at : enter the time the call started at (hhmm) : enter the duration of the call : call rate = $0.25 per min this call will cost $5.5 ---end of program--- + this call will cost $5.50 

Evaluating Test 2 Output (0.0/2.0)

Test Failed: 'enter the day the call started at : enter[140 chars]m---' != 'this call will cost $0.30' - enter the day the call started at : enter the time the call started at (hhmm) : enter the duration of the call : call rate = $0.15 a minute this call will cost $0.3 ---end of program--- + this call will cost $0.30 

Evaluating Test 3 Output (0.0/2.0)

Test Failed: 'enter the day the call started at : enter[139 chars]m---' != 'this call will cost $5.50' - enter the day the call started at : enter the time the call started at (hhmm) : enter the duration of the call : call rate = $0.25 per min this call will cost $5.5 ---end of program--- + this call will cost $5.50 

Evaluating Test 4 Output (0.0/2.0)

Test Failed: 'enter the day the call started at : enter[138 chars]m---' != 'this call will cost $0.80' - enter the day the call started at : enter the time the call started at (hhmm) : enter the duration of the call : call rate = $0.4 per min this call will cost $0.8 ---end of program--- + this call will cost $0.80 

Evaluating Test 5 Output (0.0/2.0)

Test Failed: 'enter the day the call started at : enter[103 chars]m---' != 'this call will cost $0.50' - enter the day the call started at : enter the time the call started at (hhmm) : enter the duration of the call : invalid entry! ---end of program--- + this call will cost $0.50

I cannot find how to solve this problem, please help me, thank you!