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acs's Introduction

Program ACS simulates an airline check-in system.

To use ACS:
Step 1: execute "make" in terminal to compile ACS
Step 2: execute "./ACS <input file>" in terminal to run ACS

To build your own input txt file:
The first line contains the total number of customers that will be simulated.
For every customer:
1.  The first character specifies the unique ID of customers.
2.  A colon immediately follows the unique number of the customer.
3.  Immediately following is an integer that indicates the arrival time of the customer.
4.  A comma immediately follows the previous number.
5.  Immediately following is an integer that indicates the service time of the customer.
6.  A newline ends a line.

A sample input file is included (in.txt).

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acs's Issues

hidden bug: didn't handle empty input file

Current version has a workaround for empty input file but it may not work for other implementation. NCustomers is an memory address is input file is empty but usually memory address is much greater than curr_customer.

incorrect number of lines in input file will lead to unexpected behaviour

If the first number doesn't match number of lines in input file, ACS will read in more customers than expected.

input file:
25
1:20,60
4:7,30
5:7,40
7:10,30
2:4,70
3:5,5
15:2,2

Output:
number of customers: 25
1:20,60
4:7,30
5:7,40
7:10,30
2:4,70
3:5,5
15:2,2
15:2,2
15:2,2
......
15:2,2
15:2,2
........
customer 1's waiting time: 4.604218
customer 4's waiting time: 0.801271
customer 5's waiting time: 1.302752
customer 7's waiting time: 3.701974
customer 2's waiting time: 7.302233
customer 3's waiting time: 0.500808
customer 15's waiting time: 0.000015
customer 15's waiting time: 0.000043
.....
customer 15's waiting time: 0.200043
customer 15's waiting time: 6.203485

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