CP5639 Problem Solving and Programming-The Algorithm

1. getValue(prompt): getValue function displays a prompt message to the user and requests for an input according to the options provided to him.
2. check(value, v1, v2, v3, v4): check function validates the value of the parameter value with the other four parameters of v1, v2, v3 and v4.
3. checkRange(value, range1, range2): checkRange function validates the value of the parameter value if it lies in between the range of range1 and range2.
4. calcRDCI(gender, age, weight, height): calcRDCI function calculates and returns the value of RDCI with the help of the standard formula.
5. calcPercent(value): calcPercent function calculates and returns the percent of the calorie intake of the user on the basis of the type of meal he/she had that day which is referred by the parameter value.
6. calculateTemptation(): calculateTemptation function generates random number and confirms for the temptation of the user for a single day and the calorie consumed with this temptation is returned.
7. advice(name, RDCI, weeklyCalorie): advice function calculates the final calorie consumption and the RDCI value at the end of the week. Once the percentage is generated, the user is told if it is normal or higher or lower than the normal level and the advice for the same is told.
8. main(): main function is the calling function for all the other functions and executes the program as desired.

function getValue(prompt):

IPO

Input	Processing	Output
prompt	Display prompt Get value from user Return value to the user	value

Algorithm

getValue(prompt):

display prompt

get value from user

return value

function check(value, v1, v2, v3, v4):

IPO

Input	Processing	Output
value v1 v2 v3 v4	Compare value with v1, v2, v3 and v4	true false

Algorithm

check(value, v1, v2, v3, v4):

if(value is equal to v1 or v2 or v3 or v4)

return true

else

return false

Condition Action Table

Condition	Action
value is equal to v1	true is returned
value is equal to v2	true is returned
value is equal to v3	true is returned
value is equal to v4	true is returned
value is not equal to any of the four	false is returned

function checkRange(value, range1, range2):

IPO

Input	Processing	Output
value range1 range2	value is compared if it is lies between range1 and range2	true false

Algorithm

checkRange(value, range1, range2):

if(value is greater than range1 and less than range2)

return true

else

return false

Condition Action Table

Condition	Action
value is greater than range1 and less than range2	true is returned
Value is either less than range1 or greater than range2	false is returned

function calcRDCI(gender, age, weight, height):

IPO

Input	Processing	Output
gender age weight height	-	RDCI

Algorithm

calcRDCI(gender, age, weight, height):

initialize RDCI to 0

if(gender is 'F' or 'f'):

RDCI = 10 * weight + 6.25 * height - 5 * age - 161

else

RDCI = 10 * weight + 6.25 * height - 5 * age + 5

return RDCI

Condition Action table

Condition	Action
gender is ‘F’ or ‘f’	RDCI is calculated for female
gender is ‘M’ or ‘m’	RDCI is calculated for male

function calcPercent(value):

IPO

Input	Processing	Output
value	value of parameter value is compared	percent

Algorithm

calcPercent(value):

if(value is 1)

return 150

else if(value is 2)

return 120

else if(value is 3)

return 100

else

return 80

Condition Action Table

Condition	Action
value is 1	150 is returned
value is 2	120 is returned
value is 3	100 is returned
value is 4	80 is returned

function calculateTemptation():

IPO

Input	Processing	Output
-	random numbers are generated for temptation	temptation

Algorithm

calculateTemptation():

temptation = randomly generate either 0 or 1

if(temptation is 0)

return 0

else

display "It also looks like this day you’ve been tempted! Naughty..."

temptation = randomly generate number between 50 and 150

return temptation

Condition Action Table

Condition	Action
temptation is 0	Return 0
temptation is 1	Temptation calorie is generated with random number

function advice(name, RDCI, weeklyCalorie):

IPO

Input	Processing	Output
name, RDCI, weeklyCalorie	avg calorie consumption for the week is calculated	-

Algorithm

advice(name, RDCI, weeklyCalorie):

ADCI = weeklyCalorie/7

avg= ADCI/RDCI * 100

if(avg is less than 90)

display name + " your daily calorie intake is lower than the recommended with" + (percent - 100) + "%. This rhythm will make you lose weight, just make sure your meals contain all nutritional value needed. It’s recommended that you do not fall under the healthy weight and that you keep a balanced lifestyle."

else if(avg is between 90 and 110)

display name + "your daily calorie intake is close to the recommended one! You have a balanced healthy lifestyle, well done!"

else

display name + "your daily calorie intake is higher than the recommended with " + (percent-100) + "%. This rhythm will make you gain weight which will lead to health concerns. It’s recommended that you either lower your calorie intake, either exercise more! Careful with those temptations!"

Condition Action Table

Condition	Action
avg is less than 90	Display advice to increase nutrition
avg is between 90 and 110	Congratulate user for the good nutrition
avg is above 110	Display advice to control temptations

function main():

IPO

Input	Processing	Output
-	Calculates weekly calorie consumption	-

Algorithm

main():

name = getValue("Welcome to the Calorie Intake Assistant, my name

is Cal. What is your name?")

while(name is empty)

name = getValue("Don’t be shy! What is your name?")

value = getValue("Hi" + name + "! To properly assist you, we will need some personal information such as age, gender, weight and height. Do you want to continue? Enter Y for yes or N for no.")

valid = check(value, 'Y', 'y', 'N', 'n')

while(valid is false)

value = getValue("I’m sorry, I cannot understand. To properly assist you, we will need some personal information such as age, gender, weight and height. Do you want to continue? Enter Y for yes or N for no.")

valid = check(value, 'Y', 'y', 'N', n')

if(value is 'n' or 'N')

display "That’s alright, good bye " + name

EXIT from the program

gender = getValue("Great " + name + ", let’s start! What is your

gender? Enter M for male or F for female.")

valid= check(gender, 'M', 'm', 'F', 'f')

while(valid is false)

gender = getValue(" I’m sorry, I cannot understand. What is your gender? Enter M for male or F for female.")

valid= check(gender, 'M', 'm', 'F', 'f')

age = getValue("What is your age in years?")

valid = checkRange(age, 18, 99)

while(valid is false)

age = getValue("I’m sorry, I cannot understand. What is your age in years?")

valid = checkRange(age, 18, 99)

weight = getValue("What is your current weight in kg?")

valid = checkRange(weight, 40, 150)

while(valid is false)

weight = getValue("I’m sorry, I cannot understand. What is your current weight in kg?")

valid = checkRange(weight, 40, 150)

height = getValue("What is your height in cm?")

valid = checkRange(height, 80, 230)

while(valid is false)

height = getValue("I’m sorry, I cannot understand. What is your height in cm?")

valid = checkRange(height, 80, 230)

display "Thank you for the information " + name + "! Let’s see how healthy your meals were last week"

RDCI = calcRDCI(gender, age, weight, height)

intialize weeklyCalorie to 0

dayNo = 1

while(dayNo is less than and equal to 7)

value = getValue("Day " + dayNo + ": were your meals very unhealthy (1), unhealthy (2), healthy (3), or very healthy (4)? Enter the corresponding number.")

add 1 to dayNo

percentage = calcPercent(value)

calorie = (RDCI * percent)/100

temptation = findTemptation()

add calorie and temptation to weeklyCalorie

display "Thank you! I’m computing your results…"

advice(name, RDCI, weeklyCalorie)

display "Goodbye and good luck!"

Condition Action Table

Condition	Action
value is ‘N’ or ‘n’	Exit the program
value is ‘y’ or ‘Y’	Calculate the weekly calorie consumption

Loop Tables

Loop variable	Exit conditions
valid	valid is true
valid	valid is true
valid	valid is true
valid	valid is true
valid	valid is true
dayNo	dayNo is more than 7