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C Programming Language

Contribution to module (weighting: 50 %)

1st Semester 2023-2024

Out: FRI. 1th Dec. 2023 Due: FRI. 22nd Dec. 2023

Main objective of the assignment:

Understand C programming and practice to draw a flow chAug. to describe the problem and coding in C.

You are given a struct product, Table-1 and Table-2 as listed below. You are required to finish the assignment with given information.

- Write a report;

- Use a flow chAug. or another method, demonstrate the data flow;

- Explain how the structure/functions to be used;

- Program in C language;

- Output screenshot for each question;

1. You are required to finish struct product class[] = {} using Table-1.

struct product

{

int prono;

char fullname[20]

float price;

struct salelist;

};

Table-1. Product’ Record (Given as a file “product.txt”)

prono	fullname	price
101	mango	3.5
102	orange	2.4
103	banana	2.8
104	watermelon	3.7
105	pineapple	4.1
106	blueberry	5.0
107	cherry	5.5

108	cucumber	1.9
109	cabbage	2.0
110	broccoli	3.1
111	celery	1.9
112	pea	4.5
113	product name	product price

*You are requested to modify the last record with any kind of product in the supermarket, keep prono and price.

2. Sort the records based on price. You are required to write an appropriate callback function, and output without sale list information onscreen.

3. Sale list can be accessed from Table-2. First, you need to sort product’s records based on month. Then, write an appropriate callback function, and output with sale list information onscreen.

Table-2. Sale list Information (Given as a file “salelist.txt”)

pro no	month	sales volume	discount
101	Sep.	41	10% off
101	Oct.	48	none
102	Nov.	50	10% off
103	Aug.	43	10% off
103	Sep.	56	none
104	Nov.	64	20% off
105	Sep.	71	none
105	Nov.	63	10% off
105	Dec.	33	10% off
106	Sep.	88	10% off
106	Aug.	78	none
106	Physics	91	none
106	Nov.	65	20% off
106	Dec.	82	10% off
107	Nov.	86	10% off
107	Dec.	48	none
107	Dec.	41	none

108	Sep.	38	none
108	Dec.	56	20% off
108	Nov.	58	none
108	Nov.	98	10% off
109	Aug.	63	10% off
110	Sep.	73	10% off
110	Nov.	43	none
110	Dec.	80	none
110	Dec.	65	20% off
111	Sep.	95	20% off
111	Nov.	89	none
111	Oct.	96	none
112	Sep.	36	none
112	Nov.	73	10% off
112	Oct.	21	none

4. Calculate the total sale volume and average sale volume of each product respectively, and output the them onscreen.

5. Output all sales data of September with product information, write the result to a new txt file and name the file with your Brunel id.

6. Calculate the total sale of each product, and output the top three on the screen. To achieve this, you need to know that price of each product varies according to discount of each month. For example: the price of mango in September has a discount of 10% off. In other words, the price of mango in September is 3.15. The total sale of mango in September equals the total sale volume of mango in September multiple the price of mango in September. Finally, we can get the total sale of mango by adding up the sales of mango in September,

October,November and December.

7. Write a flow chAug. for each function.

Remarks:

* Solutions to all questions above need to be included one *.c file. In addition, you are required to define a function for each question. e.g.:

main(), Q1_functionname(), Q2_functionname(), Q3_functionname(), Q4_functionname() and Q5_functionname(). Qx_functionname() should be given by yourself.

* The output for each question should be done in main() function. * Do not include any Chinese characters in your assignment.

* You are required to write annotation before each function, and annotation / description for important statements. e.g.:

@function function_name

@desc describe what is this function used for.