assignment final.docx

7/16/2019 assignment final.docx

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Introduction to Computing

SUBMITTED BY:

MUHAMMAD KHIDR ZARA MALIK AQSA SHAHID AMNA ZAHEER SAMIA ZAKIR

REGISTRATION #:

L1S13BSCS0145 L1S13BSCS0152 L1S13BSCS2169 L1S13BSCS2142 L1S13BSCS0170

SECTION: D

SUBMITTED TO:

SIR AZEEM AHMAD


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WEEK 6 LAB 1:

Program 1:

State the order of evaluation of the operators in each of the following C++ statements and find the

value of variable, after each statement is performed. Write C++ program to check your answers.

a = 12 / 3 * 3 b = 10 % 3 6 / 2 c= 5.0 * 2.0 / 4.0 * 2.0 d = 5.0 * 2.0 / (4.0 * 2.0) e= 5.0 + 2.0 / (4.0 * 2.0) f = ( 3 * 9 * ( 3 + ( 9 * 3 / (3) ) ) ); g = 2 * 3 / 4 + 4 / 4 + 8 2 + 5 / 8;

#include

void main ()

{

int a,b,f,g;

float c,d,e;

a=12/3*3;

cout


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cout


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#include

void main ()

{

int c,f,d;

float b;

double a,e;

a=(10.0/3.0)+(5*2);

cout


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Program 3:

Identify and correct the errors in each of the following statements. (Note: There may be none or more

than one error per statement.)

int a=2; cout


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c= (c++ * b-- - ++a) / --c d= (c++ % ++b) + --a + a

#include

void main ()

{

int a=10,b=12,c=0,d=0;

a=a++;

cout


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}

Program 5:

Convert the following mathematical formula into C++ expressions and evaluate it through C++

program.

where y a 0.

#include

void main ()

{

int x,y,z,a,b,A,B,C,D,M;

coutx;

cout


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cout


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Program 6:

Suppose you want to verify the interest calculation used by your bank on a loan. The interest rate is

15.5 percent, stored as .155 in a floating-point variable. The amount of interest, you owe is computed,

by multiplying the interest rate by the amount of the loan balance, then multiplying that by the

number of days in the year since the loan originated. The following program finds the daily interest

rate by dividing the annual interest rate by 365, the number of days in a year. C++ must convert the

integer 365 to a floating-point literal automatically, because it is used in combination with a floating-

point variable.

#include

void main ()

{

int days;

float principle,daily_intrest,intrest_rate=0.155;

coutdays;

cout


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daily_intrest=intrest_rate/365;

daily_intrest=principle*daily_intrest*days;

principle=principle+daily_intrest;

cout


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coutcal;

coutch2;

couteng;

coutch3;

coutbe;

coutch4;

coutisl;

coutch5;

ttl_earned=(itc*ch1)+(cal*ch2)+(eng*ch3)+(be*ch4)+(isl*ch5);

ttl_credit_hours=(ch1+ch2+ch3+ch4+ch5)/5;

CGPA=ttl_earned/ttl_credit_hours/100;

cout


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}

Program 8:

Assume that a video store employee works 50 hours. He is paid $4.50 for the first 40 hours, time-and-

a-half (1.5 times the regular pay rate) for the first five hours over 40, and double-time pay for all hours

over 45. Assuming a 28 percent tax rate, write a program that prints his gross pay, taxes, and net pay

to the screen. Label each amount with appropriate titles (using string literals) and add appropriate

comments in the program.

#include

void main ()

{

double tax,net_pay,gross_pay,A,B,C;

A=4.50;

cout


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}


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Week 6 Lab 02You have written numerous pseudo codes and drawn different flow charts to solve problems

in previous lab sessions. Now implement those solutions in C++ programs. There are 5

different problems (below) and you must write the solutions in one C++ file.

Program#1

Obtain two numbers, from user through keyboard, and determine which number (first orsecond) is greater. Result should be displayed with proper message as shown in expected

output table below.

#include

void main ()

{

int a,b;

couta;

coutb;

if (a


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}

}

Program#2

Write a program that takes two integers, from user through keyboard, and determines ifthe first number is a multiple of the second number. (Hint: assignment operator will be

used in this program)

#include

void main ()

{

int a,b,c;

couta;

coutb;

c=a%b;

if (c==0)

{

cout


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else

{

cout


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{

cout


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cout


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cin>> CGPA;

if (CGPA>=3.0||warningCount==0)

{

cout


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{

cout


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Program #7

Write a C++ program thattakes the year of birth as input, from the user, and calculates the

age. If the age is between 15 and 20 then the user can take the testotherwise user cannot

take any test. Furthermore, if the age is between 15 and 17 then display user can take test

A. If the age is between 18 and 20 then displays user can take testB.

#include

void main()

{

int year,age;

coutyear;

age=2013-year;

if(age>=15&&age


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Program # 8

Write a C++ Program that takes input, from user through keyboard, as single character (a-z)

and determine whether the given character is vowel or not. (Hint: Write this program using

logical and relational operators. The data type is char).

#include

void main ()

{

char z;

cout


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cin>>z;

switch(z)

{

case 'a':cout


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WEEK 7 Lab 1Program 1:

Write a C++ program to allow the user to input his/her age. Then the program will show if the person

is eligible or not eligible to vote. A person who is eligible to vote must be older than or equal to 18

years old.

#include

void main ()

{

int age;

cout


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{

cout


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cin>>a;

if (a>5||8


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void main ()

{

int a;

cout


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}

Program 4:

Write a C++ program to take two integers from user and determine/print the relationship between

given numbers. The relationship should be measured as follows:

If the first number is less than the second number

If the first number is equal to second number

If the first number is greater than second number

#include

void main ()

{


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int a,b;

cout


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Program 5:

Develop a C++ program that will determine if a department stores customer has exceeded the credit

limit on a charge account. For each customer, take input of the following facts:

o Account numbero Previous balance at the beginning of the montho Total of all items charged by this customer this month

#include

void main ()

{

int acc,beg_bal,tchrg,tcrdt,crdt_lmt,nw_bal;

cout


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cout


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Program 6:

Suppose you are an amusements park ride operator. Rides often come with restrictions on who can

and cannot ride, usually based on height and weight. If the height of the individual is less than or

equal to 54 inches or the weight of the individual is less than 60 pounds, he or she cannot ride. If the

height of the individual is greater than 84inches or his/her weight is greater than 300pounds, he or

she cannot ride. Otherwise (if the rider does not match with above mentioned conditions), he/she can

ride. Write a C++ program, which prompts the user for his/her height and weight (both integers) and

outputs a descriptive message indicating their eligibility to ride.

# include

void main ()

{

int h,w;

cout


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cin>>w;

if (h


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Program 7:

Write a C++ program for auto insurance agency. This program should determine the cost of an

automobile insurance premium, based on driver's age and the number of accidents that the driver has

had. The basic insurance surcharge is $500. There is a surcharge of $100 if the driver is under 25.

Consider the following table in order to calculate the surcharge for accidents:

# of accidents Accident Surcharge

1 50

2 125

3 225

4 375

5 575

6 or more No insurance

#include


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void main ()

{

int age,no_acci,i_prem,basic_in=500,s_chrg=100,a,b;

cout


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if(no_acci==3)

{

b=a+225;

cout


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}

}

}

else

{

if (no_acci==1)

{

b=a+50;

cout


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else

{

if (no_acci==4)

{

b=a+375;

cout


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Week 7 Lab 02

Program 1:

(Dangling Else Problem) Modify the following code to produce the output as shown below.

You may not make any changes other than inserting braces at proper places. We eliminated

the indentation from the following code to make the problem more challenging.

*Note: Its possible that no modification is necessary.]

if( y == 8 )

if( x == 5 )

printf( "@@@@@\n" );

else

printf( "#####\n" );

printf( "$$$$$\n" );

printf( "&&&&&\n" );

#include

void main ()

{

int x,y;coutx;

couty;

if( y == 8 )

{

if( x == 5 )

{

cout


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}

}

Program 2:

Write a C++ program that reads the marks obtained by a student in a test (maximum 100

marks) and computes his grade according to the following criteria.

Marks>=80 -->grade=A

Marks>=70 &grade=B

Marks>=60 & grade=C

Marks>=50 & grade=D

Otherwise grade=F

#include void main ()

{

int marks;

coutmarks;

if (marks>=80)


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{

cout


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Program 3:

Consider the following statement.

if age >minAgethen

if income >minIncomethen

put "Accept"

else

put "Reject"

endif

endif What will the statement print, if

age >minAge and income


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cin>>income;

coutminAge;

if (age>minAge)

{

if (income>minIncome)

{

cout


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For all those students, who satisfy the condition for eligibility of TA (cgpa and gpa is greater

than 3), There are four types of TA, offered to a student according to following criteria.

- Full time TA if he/she is student of MS.

- Part time TA if he/she is student of BS.

The program takes input, the type of degree in a variable of type char, where M is for MS

student and B represents BS student.

#include

void main ()

{

float gpa,cgpa;

char degree,M,B;

coutgpa;

coutcgpa;

coutdegree;

if (gpa>3&&cgpa>3)

{

cout


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if (degree=='B')

{

cout


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Code I: first 4 hundred gallons: $1500

$0.125 for each additional gallon used

#include

void main()

{

float an,g,r,rr,rrr,rrrr;

char c;

coutan;

coutc;

coutg;

if(c=='h')

{

if(g>100)

{

r=g-100;

rr=r*0.005;

rrrr=r+rr;

cout


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{

cout


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if(c=='i')

{

if(g>400)

{

r=g-400;

rr=r*0.125;

rrr=r+rr;

cout


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WEEK 8 LAB 1Program 1:

Write a C++ program that:

1. Declare two variables. Initialize the second variable to be 1000.2. Gets a value of the first variable from the user.3. If the first variable is 0, the program increments the first variable.4. If the first variable is 1, the program decrements the first variable and increments the

second variable.

5. If the first variable is -100, the program increments the first variable and decrementsthe second integer.

6. In all other cases, the program sets both variables to 0.7. Print the final result (both variable) on screen.

#include

void main ()

{

cout


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cout


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}

Program 2:

Write a nested if statement to print the appropriate activity depending on the value of a

variable (temperature and humidity) as in the table below: Assume that the temperature can

only be warm and cold, and the humidity can only be dry and humid.

If temperature is if humidity is Print this activity

Warm Dry "Play tennis"

Warm Humid "Swim"

Cold Dry "Play basketball"

Cold Humid "Watch TV"

#include

void main ()


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{

cout


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else if (temp==2&&humid==4)

{

cout


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In all other cases the driver is not insured. If the marital status, sex and age of the driver are

the inputs, write a program to determine whether the driver is to be insured or not. Here

after checking a complicated set of instructions the final output of the program would be one

of the twoEither the driver should be ensured or the driver should not be ensured.

#include

void main ()

{

cout


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if(gender==1&&age>=30)

{

cout


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Program 4:

In a company, worker efficiency is determined on the basis of the time required for a worker

to complete a particular job. If the time taken by the worker is between 2 3 hours, then the

worker is said to be highly efficient. If the time required by the worker is between 3 4

hours, then the worker is ordered to improve speed. If the time taken is between 4 5 hours,

the worker is given training to improve his speed, and if the time taken by the worker is morethan 5 hours, then the worker hasto leave the company. If the time taken by the worker is

input through the keyboard, find the efficiency of the worker.

#include

void main ()

{

cout


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cout


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Program 5:

Write a program using SWITCH structure to determine the total weight of chocolates being

sold. The program takes as input, the number of chocolates being sold, weight of one

chocolate in ounces and the choice of weighing i.e. ounces, pounds, grams or kilograms. User

enters O as a choice to calculate weight in ounces, P for pounds, G for grams and K for

kilograms. Depending on the choice entered by the user the program calculates the weight ofchocolates. Display an appropriate message if invalid choice is entered. Use the following

formulas to calculate total weight of chocolates.

For weighing in Ounces

total_weight = number_of_chocolates * weight_of_Chocolate

For weighing in Pounds

total_weight = number_of_chocolates * weight_of_Chocolate / 16

For weighing in Grams

total_weight = number_of_chocolates*weight_of_Chocolate * 28.349

For weighing in Kilograms

total_weight = number_of_chocolates*weight_of_Chocolate*28.349/1000;


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#include

void main ()

{

cout


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}

}

Program 6:

In the Chinese calendar, every year is associated with a particular animal. The 12-year animal

cycle is rat, ox, tiger, rabbit, dragon, snake, horse, goat, monkey, rooster, dog, and boar. The

year 1900 is a year of the rat; thus 1901 is a year of the ox and 1912 is another year of the rat.

If you know in what year a person was born, you can compute the offset from 1900 and

determine the animal associated with that persons year of birth. (! First, think of the

formula)

Create a program using SWITCH structure that determines the animal corresponding to an

input year of birth. The program should take as input the year of birth in a variable of typeint. The program should then display the corresponding animal.

#include


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void main ()

{

cout


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case 11:cout


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#include

void main ()

{

cout


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};break;

case 2:cout


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WEEK 8 LAB 2

Program 1:

Write the answers on the answer sheet:

1) After execution of the following code, what is stored in num?

(All variables are of type int.)

Hint: use i=3, j=5, and k=7 as sample values.

if (j > k)

if (i > j)

num = i;

else

num = j;

else

if (i > k)

num = i;

else

num = k;

a. 3

b. 5

c. 7e. 9

#include

void main ()

{

cout


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cout


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num = k;

cout


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{

y = y + 5;

cout


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a. 1

b. 2

c. 3

d. 5

e. 8

#include

void main ()

{

cout


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{

angle = angle + 3;

cout


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Program 3:

1) After execution of the following code, what will be the value of angle?

int angle = 13;

if (angle


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{

cout


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cout


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WEEK 9 LAB 1Program 1:

While loop that is counting

Type the given code and observe the output

1. #include 2. int main()3. {4. int counter = 0; // initialize the condition5. while(counter < 5) // test condition still true6. {7. counter++; // body of the loop8. cout


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Program 2:

Type the given code and observe the output

1. #include2. main()3. {4. int x = 1;5.while (x


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{

cout age_user;6.cout > age_friend;8.cout


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# include

void main ()

{

int age_user,age_friend;

char loop_response = 'y';

while (loop_response == 'y')

{

cout > age_user;

cout > age_friend;

cout


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cin >> loop_response;

}

}

Program 4:

Write a program using while loop to repeatedly print the value of the variable xValue, decreasing it

by 0.5 each time, as long as xValue remains positive.

#include

void main ()

{

float a;

cout


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while (a>0)

{

a=a-0.5;

cout


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cout


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#include

void main()

{

int c,a=1,b;

cout


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program 7:

Write a program to print the multiplication table of the number entered by the user.

# include


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void main ()

{

int a,b=1;

cout


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WEEK 9 LAB 2Program 1:Write the statements, including a While loop, required to calculate y (t) from theequation:

3t2 +5 t 0

3t2 +5 t


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cout


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Program 2:

Write a program that accepts numbers from the user and computes their sum. The numbers should

be entered one at a time and the output of all the numbers entered thus far should then be displayed.

The program should halt when the user enters the number m 2:

#include

void main ()

{

cout


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}

cout


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void main ()

{

cout


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while(num1


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Program 4:

Write a program that takes as input time expressed in 2400 format (e.g. 23:05 hours), convert it to

1200 hours format (e.g. 11:05 p.m) and display the new time on the screen. Your program should

repeat the processing until a sentinel time of -99 is entered.


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