Junaid program assignment

Problem Set for Sequential StructureProgramming Assignment
Convert the following mathematical expressions into C++ Expressions.
Algebraic Expression C++ Expression
(a*b)-(c*d)
(m+n)*(a+b)
3*x*x+2(x)+5
(a+b+c)/(d+e)
[(2*b*y)/(d+1)-(x)/3(z+y)]
Which of the following are invalid variable names and why?
BASICSALARY valid variable.
#MEAN is wrong because “#” is not allowed for variable.
2015_DDay invalid variable.
group. Is variable.
basic-hra - is not allowed in variable.
_basic is variable.
422 numbers are not variables.
Plot # 3 invalid statement “#” is not allowed in variable.
hELLO is variable.
population in 2006 spaces are not allowed in variable.
over time is again wrong due space in variable.
mindovermatter is variable.
queue. . is not is variable.
team’svictory ‘ is not allowed in variable.
FLOAT is variable.
Junaid Ahmed (BS-SE)1st semester
Roll No: F14-030

Evaluate the following expressions according to their precedence.
Expression Evaluate C++ Expression
(A)g = big / 2 + big * 4 / big - big + abc / 3 ;
(abc = 2.5, big = 2, assume g to be a float)
(B) on = ink * act / 2 + 3 / 2 * act + 2 + tig ;
(ink = 4, act = 1, tig = 3.2, assume on to be an
int)
(C) s = qui * add / 4 - 6 / 2 + 2 / 3 * 6 / god ;
(qui = 4, add = 2, god = 2, assume s to be an
int)
(D) s = 1 / 3 * a / 4 - 6 / 2 + 2 / 3 * 6 / g ;
(a = 4, g = 3, assume s to be an int)
float g=(big/2)+((big*4)/big)-((big+abc)/3);
int on=((ink*act)/2)+(3/2*act)+2+tig;
int s=((qui*add)/4)-(6/2)+((2/3)*(6/god));
int s=((1/3)*(a/4))-(6/2)+((2/3)*(6/g));
Roll No: F14-030
(A)
# include<iostream>
# include<stdio.h>
# include<conio.h>
using namespace std;
int main()
{
float g, big, abc;
big=2;
abc=5;
g = big /( 2 + big * 4) /( big - big + abc )/ 3 ;
cout<<g;
}
(B)
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()

Roll No: F14-030
{
int ink, act;
ink=4;
act=1;
float tig, on;
tig=3.2;
on = (ink * act )/( 2 + 3) / (2 * act + 2 + tig);
cout<<on;
}
(C)
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
int qui,add,god,s;
qui=4; add=2; god=2;
s = (qui * add )/ (4 - 6 )/( 2 + 2) / (3 * 6)/ god ;
cout<<s;
}
(D)
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
int a, g, s;
a=4; g=3;
s = 1 / (3 * a )/ (4 - 6 )/ (2 + 2)/ (3 * 6)/ g ;
cout<<s;
getch();
}

Find the errors, if any in the following C++ statements.
Errors C++ statements
Roll No: F14-030
(a) int = 314.562 * 150 ;
(b) name = ‘Ajay’ ;
(c) varchar = ‘3’ ;
(d) 3.14 * r * r * h = vol_of_cyl ;
(e) k=(a*b) (c+(2.5a+b)(d+e);
(f) m_inst = rate of interest *
amount in rs ;
(g) si = principal * rateofinterest
* numberofyears / 100 ;
(h) area = 3.14 * r ** 2 ;
(i) volume = 3.14 * r ^ 2 * h ;
(j) k = (( a*b )+ c ) (2.5 * a + b ) ;
(k) a = b = 3 = 4 ;
(l) count = count + 1 ;
(m) date = '2 Mar 04' ;
Float=314.562*150;
String=’Ajay’
Varchar=(3);
Vol_of_cyl=3.14*r*r*h;
is wrong because missing some opratus
m_inst = rate_of_interest*
amount_in rs;
int si=principal*rateofinterest*numberofyears/100 ;
float area=3.14*r*2;
volume=3.14*r*r*h;
k=((a*b)+c)*(2.5*a+b);
a=3,b=4;
count=count+1; is correct or we can write it as count++;
string date=”2March04”;
Convert the following equations into corresponding C++ statements.
Equations C++ statements
Z = 8.8(a+b)2/c-0.5+2a/(q+r)
(a+b)*(1/m)
X = -b+(b*b)+24ac
2a
R = 2v+6.22(c+d)
g+v
A = 7.7b(xy+a)/c-0.8+2b
(x+a) (1/y)
Z = 8.8(a+b)2/(c)-0.5+2(a)/(q+r)/(a+b)*(1/m)
X = -(b)+(b*b)+2(4)(a*c)/2(a)
R = 2(v)+6.22(c+d)/(g+v)
A = 7.7(b)[(x*y)+a]/c-0.8+2(b)/(x+a)*(1/y)

/*Trace out the output (A)*/
Roll No: F14-030
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
int i=2,j=3,k,l;
float a,b;
k=i/j*j;
l=j/i*i;
a=i/j*j;
b=j/i*i;
cout<<k<<l<<a<<b;
getch();
return 0;
}
/*Trace out the output (B)*/
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
int a,b;
a=(-3)-(-3);
b=(-3)+(-3);
cout<<"a="<<a<<"b="<<b;
getch();
return 0;
}

/*Trace out the output (c)*/
Roll No: F14-030
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
cout<<"nnnn nnn";
printf( "nn/n/nnn/n");
getch();
return 0;
}
/*Trace out the output (D)*/
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
int p,q;
cout<<"Enter Values of p and q";
cin>>p>>q;
cout<<"p="<<p<<"tq="<<q;
getch();
return 0;
}
Write a C++ program for the following
/* (a) Rameez's basic salary is input through the keyboard.
His dearness allowance is 40% of basic salaryand house rent allowance
is 20% of basic salary.Write a program to calculate his gross salary.*/
# include<iostream>
# include<stdio.h>

Roll No: F14-030
# include<conio.h>
int main()
{
float bs=0,da=0,hr=0,gs=0;
cout<<" Enter Rameez's basic salary : ";
cin>>bs;
da=bs*40/100;
hr=bs*20/100;
gs=da;
/*cout<<"n Basic salary : ";
cout<<bs;
cout<<"n Deaness allowance : ";
cout<<da;
cout<<"n House rent allowance : ";
cout<<hr;*/
cout<<"n Gross salary : ";
cout<<gs;
getch();
return 0;
}
/*(b) The distance between two cities (in km.) is input through the keyboard.
Write a program to convert and print this distance in meters, feet, inches
and centimeters. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float km=0,m=0,f=0,i=0,cm=0;
cout<<" Enter Kilometers : ";
cin>>km;
m=km*1000;
f=km*3280.83989501;
i=km*39370.1;
cm=km*100000;
cout<<"n Meters : ";
cout<<m;
cout<<"n Feets : ";
cout<<f;
cout<<"n Inches : ";

Roll No: F14-030
cout<<i;
cout<<"n Centimeters : ";
cout<<cm;
getch();
return 0;
}
/*(c) If the marks obtained by a student in five different subjects are input
through the keyboard, find out the aggregate marks and percentage marks
obtained by the student.Assume that the maximum marks that can be obtained by
a student in each subject is 100. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float che,phy,bio,eng,com,total=500,sum,agg=0,per=0;
cout<<"n Chemistry : ";
cin>>che;
cout<<"n Physics : ";
cin>>phy;
cout<<"n Biology : ";
cin>>bio;
cout<<"n English : ";
cin>>eng;
cout<<"n Computer : ";
cin>>com;
sum=che+phy+bio+eng+com;
agg=(sum/total)*100;
cout<<"n Aggregate Marks : ";
cout<<agg;
per=(sum*100)/total;
cout<<"n Percentage : ";
cout<<per;
getch();
return 0;

Roll No: F14-030
}
/*(d) Temperature of a city in Fahrenheit degrees is input through the keyboard.
Write a program to convert this temperature into Centigrade degrees.
Tc = (5/9)*(Tf-32); */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float tf=0,tc=0,Div;
cout<<"Enter Fahrehrit degrees : ";
cin>>tf;
Div=0.5555555555555556;
tc=Div*(tf-32);
cout<<"Centigrade degrees: ";
cout<<tc;
getch();
return 0;
}
/*(e) The length & breadth of a rectangle and radius of a circle are input
through the keyboard. Write a program to calculate the area & perimeter of the
rectangle, and the area & circumference of the circle. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{

float len1=0,bre1=0,rad=0,rec1=0,area1=0,per1=0,area2=0,cir=0;
cout<<" Enter lenght of rectangle : ";
cin>>len1;
cout<<" Enter breadth of rectangle : ";
cin>>bre1;
cout<<" Enter radius of circle : ";
cin>>rad;
area1=len1*bre1;
per1=2*(len1+bre1);
cout<<"n Area of rectangle : ";
cout<<area1;
cout<<"n Perimeter of rectangle : ";
cout<<per1;
area2=3.14159265*(rad*rad);
cir=6.2831853*rad;
cout<<"n Area of circle : ";
cout<<bre1;
cout<<"n Circumference of circle : ";
cout<<cir;
getch();
return 0;
Roll No: F14-030
}
/*(f) Two numbers are input through the keyboard into two locations C and D.
Write a program to interchange the contents of C and D. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float loc1=0,loc2=0,x=0;
cout<<" Enter location C number : ";
cin>>loc1;
cout<<" Enter location D number : ";
cin>>loc2;
x=loc1;
loc1=loc2;
loc2=x;

Roll No: F14-030
cout<<"n Value of C locatio : ";
cout<<loc1;
cout<<"n Value of D Location : ";
cout<<loc2;
getch();
return 0;
}
/*(g) If a five-digit number is input through the keyboard, write a program
to calculate the sum of its digits.*/
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float a=0,b=0,c=0,d=0,e=0,sum=0;
cout<<" Enter 1st digit of a number : ";
cin>>a,b,c,d,e;
cout<<" Enter 2nd digit of a number : ";
cin>>b;
cout<<" Enter 3rd digit of a number : ";
cin>>c;
cout<<" Enter 4th digit of a number : ";
cin>>d;
cin>>e;
sum=a+b+c+d+e;
cout<<"n Sum : ";
cout<<sum;
getch();
return 0;
}
/*(h) If a five-digit number is input through the keyboard, write a program
to reverse the number. */

Roll No: F14-030
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float a=0,b=0,c=0,d=0,e=0;
cout<<" Enter 1st digit number : ";
cin>>a;
cout<<" Enter 2nd digit number : ";
cin>>b;
cout<<" Enter 3rd digit number : ";
cin>>c;
cout<<" Enter 4th digit number : ";
cin>>d;
cout<<" Enter 5th digit number : ";
cin>>e;
cout<<"n 1st digit number : ";
cout<<e;
cout<<"n 2nd digit number : ";
cout<<d;
cout<<"n 3rd digit number : ";
cout<<c;
cout<<"n 4th digit number : ";
cout<<b;
cout<<"n 5th digit number : ";
cout<<a;
getch();
return 0;
}
/*(i) If a four-digit number is input through the keyboard, write a program
to obtain the sum of the first and last digit of this number. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()

Roll No: F14-030
{
float a=0,b=0,c=0,d=0,e=0,sum=0;
cout<<" Enter 1st digit of a number : ";
cin>>a;
cout<<" Enter 2nd digit of a number : ";
cin>>b;
cout<<" Enter 3rd digit of a number : ";
cin>>c;
cin>>d;
cin>>e;
sum=a+e;
cout<<"n Sum : ";
cout<<sum;
getch();
return 0;
}
/*(j) In a town, the percentage of men is 52. The percentage of total literacy
is 48. If total percentage of literate men is 35 of the total population, write
a program to find the total number of illiterate men and women if the
population of the town is 80,000. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float tm,im,iw,tp=80000;
cout<<" Total popuation in Town : ";
cout<<tp;
tm=(52.0/100.0)*tp;
im=tm-iw;
cout<<"n Total number of illeriate men : ";
cout<<im;
iw=tp-tm;
cout<<"n Total number of illeriate women : ";
cout<<iw;
getch();

Roll No: F14-030
return 0;
}
/*(k)A cashier has currency notes of denominations 10, 50 and 100. If the amount to be withdrawn
isinput through the keyboard in hundreds, find the total number of currency notes of each
denomination the cashier will have to give to the withdrawer. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float a=0,b=0,c=0,x=0;
cout<<" Amount : ";
cin>>x;
a=x/10;
cout<<"n Currency notes of 10 : ";
cout<<a;
b=x/50;
cout<<b;
c=x/100;
cout<<c;
getch();
return 0;
}
/*(l) If the total selling price of 15 items and the total profit earned on
them is input through the keyboard, write a program to find the cost price
of one item. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{

float sp=0,tp=0,cp=0;
cout<<" Total selling price : ";
cin>>sp;
cout<<"n Total Profit Earned : ";
cin>>tp;
cp=(sp+tp)/15;
cout<<"n Cost price of one item : ";
cout<<cp;
getch();
return 0;
Roll No: F14-030
}
/*(m) If a five-digit number is input through the keyboard, write a program to
print a new number by adding one to each of its digits. */
# include<iostream>
# include<stdio.h>
# include<conio.h>
int main()
{
float dig=0,x=0,y=0;
cout<<" Enter digits : ";
cin>>dig;
y=11111;
x=y+dig;
cout<<"n Output : ";
cout<<x;
getch();
return 0;
}

Junaid program assignment

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