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OMPUTER S IEN E

PROGRAMS IN C++

2011-2012

NAME: ALOK KUMAR

ROLL NO: 05

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1. Program toprint WELCOME IN C++.

#include

void main()

{cout

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2. Program to find sum of two numbers.

#include

void main()

{

int num1,num2,sum;

coutnum1;

coutnum2;

sum=num1+num2;

cout

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3. Program to find square of a number.

#include

void main()

{int num1,square;

coutnum1;

square=num1*num1;

cout

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4. Program to check whether a number is greater than or

less than other number.

#include

#include

void main()

{

clrscr();

int num1,num2;

cout

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Enter value for num 1: 5

Enter value for num 2: 10

Num1 is smaller than num 2

5. Program to calculate percentage marks for three

subjects.

#include

void main()

{

float English, Maths, Science, Sum, Percentage;

coutEnglish>>Maths>>Science;

Sum=English+Maths+Science;

Percentage=Sum*100/300;cout

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6. Program that reads temperature in Celsius and displays

it in Fahrenheit.

#include

void main()

{

int Celsius, Fahrenheit;

coutCelsius;

Fahrenheit=9*Celsius/5+32;

cout

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7. Program that reads radius of a circle and prints its area.

#include

void main()

{

float radius,area;

coutradius;

area=radius*3.14*radius;

cout

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8. Program that enter value of x from user and prints Y =

2x and Z = 2x -1.

#include

#include

void main()

{

clrscr();

int x,y,z;

coutx;

y=2*x;z=2*x-1;

cout

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9. Program to convert a given number of days into years,

weeks and days.

#include

#include

void main()

{

clrscr();

int totaldays,years,weeks,days,rem1,rem2;

couttotaldays;

years=totaldays/365;

rem1=totaldays%365;

weeks=rem1/7;

rem2=rem1%7;

days=rem2;

cout

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Years = 2 weeks = 32 days = 2

10. Program for swapping of two numbers using thirdnumber.

#include

#include

void main()

{

clrscr();

int a, b, c;

couta;

coutb;

c=a;a=b;

b=c;

cout

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b= 5

11. Program for swapping of two numbers without usingthird variable.

#include

#include

void main()

{

clrscr();

int a,b;

couta;

coutb;

a=a+b;b=a-b;

a=a-b;

cout

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b= 4

12. Program to input three numbers and print the largestof three.

#include

void main()

{

int x,y,z;

couty>>z;

if(x>y&&x>z)

cout

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9 is greatest

13. Program to check whether the entered number is oddor even.

#include

#include

void main()

{

clrscr();

int num;

cout

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Number is even

14. Program to find Simple Interest and CompoundInterest.

#include

#include

void main()

{

clrscr();

int P,R,T;

float SI,CI;

coutR>>T;

SI=P*R*T/100;

CI=P*(1+R/100)^T;cout

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15. Program to find area of a triangle.

#include

#include

void main()

{

clrscr();

int b, h, area;

couth;

area=b*h/2;

cout

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16. Program that seeds the name of user and number

of unit and displays the electricity charge with name.

The electricity board charges according to following data:

For first 100 units = 40p/unit

For next 200 units = 50p/unit

Beyond 300 units = 60p/unit

All the users are charged motor charge also which is Rs 50.

#include

#include

#include

void main()

{

clrscr();

char name[25];

int unit, charge;

cout

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charge=100*40/100+50;

if(unit>100&&unit300)

charge=100*40/100+200*50/100+(unit-300)*60/100+50;

puts(name);

cout

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17. Program to enter marks in five subjects and

calculate percentage. Display grade according to

following specifications.

Percentage Grade

>90 A

81 B

71 C

61 D51 E

41 F

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int eng, maths, cs, phy, chem, sum, percentage;

coutcs>>phy>>chem;

sum=eng+maths+cs+phy+chem;

percentage=sum/5;

cout

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grade='G';

cout

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18. Program that accepts a character between A and J and

prints next 4 characters.

#include

#include

void main()

{

clrscr();

char ch;

coutch;

int num =ch;

cout

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19. Program to input a student type (A or B), and for

A initialize the collage account with Rs 200 otherwise

initialize the hostel account with Rs 200.

#include

void main()

{

char stu_type;

int coll_acc,hostel_acc;

coutstu_type;

if(stu_type=='A')

coll_acc=200;

cout

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20. Program that print area for choice 1 and perimeter for

choice 2 of a circle

#include

void main()

{

char choice;

int radius, area, peri;

coutradius;

coutchoice;

area=22*radius*radius/7;

peri=2*22*radius/7;

if(choice=='1')cout

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21. Program to find value of P if P= (w + x)/(y-z). The

value of w, x, y, z are entered by user.

#include

void main()

{

float w, x, y, z, P;

coutw>>x>>y>>z;

P= (w + x)/(y-z);

cout

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22. Program which raise any number x to a positive

power n.

#include

#include

#include

void main()

{

clrscr();

long double x,n,p;

coutx;

coutn;p=pow(x,n);

cout

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23. Program to calculate commission for the salesmen the

commission is calculated according to following rates.

Sales Commission rate

30001 onwards 15%

2200030000 10%

1200122000 7%

500112000 3%

05000 0%

#include

#include

void main()

{clrscr();

float sales;

coutsales;

if(sales>5000)

if(sales

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else

cout

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24. Program to print whether the entered character is an

uppercase or a lowercase character or a digit or any other

character. The ASCII codes are given below.

Characters ASCII Range

0 9 4857

A Z 6590

a z 97 - 122

#include

#include

void main()

{

clrscr();

char ch;

int num;

coutch;

num=ch;

if(num>=48)

if(num>=65)

if(num>=97&&num

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else

cout

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#include

#include

void main()

{

clrscr();

int n,i;

coutn;

for(i=1;i

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#include

#include

#include

void main()

{

clrscr();

float a,b,c,root1,root2,delta;

cout>a>>b>>c;

if(a==0)

cout

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else if(delta==0)

{

root1=root2=-b/(2*a);

cout

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#include

#include

#include

void main()

{

clrscr();

int n,i;

coutn;

for(i=2;i

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#include

#include

#include

void main()

{

clrscr();

int j,i;

for(i=0;i

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#include

#include

void main()

{

clrscr();

int i, n, sum=0;

coutn;

for(i=1;i

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#include

void main()

{

int n,i,sum1=0,sum2=0;

coutn;

for(i=1;i

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#include

#include

void main()

{

clrscr();

int i,j;

for(i=1;i

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#include

#include

void main()

{

clrscr();

int i,j;

for(i=1;i

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#include

#include

void main()

{

clrscr();

int i;

for(i=1;i

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#include

void main()

{

int i, j, k, n;

coutn;

for(i=1;i

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#include

#include

void main()

{

clrscr();

int i, n, facto=1;

coutn;

for(i=1;i

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#include

void main()

{

char ch;

int i=ch, j, n;

coutn;

for(i=65;i

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void main()

{

int i, j, k, n;

coutn;

for(i=1;i

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#include

void main()

{

int n, n1, n2=n, rev=0;

coutn;

while(n)

{n1=n%10;

rev=rev*10+n1;

n=n/10;

}

if(n2==rev)

cout

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#include

#include

void main()

{

char ch;

coutch;

if(isalpha(ch))

cout

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#include

void main()

{ char ch;

coutch;

if(isalpha(ch))

{ cout

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#include

void main()

{

char s1[10], s2[10];

cout

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void main()

{

int n=1;

char str[100];

cout

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{ char str[25];

cout

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int len, i, f=1;

cout

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void main()

{ clrscr();

char str[20], ch;

int i, f=0;

cout

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OUTPUT

Enter string: My name is Khan and I am not a terrorist.

Enter character: K

The given character is present in the string

The position of the character is: 12

Enter character: t

The given character is present in the string

The position of the character is: 32

46. Program to find cube of a number (using

function).

#include

int cube(int);

void main()

{

int a,c;

cout

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cin>>a;

c=cube(a);

cout

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clrscr();

int n;

even_odd(n);

}

void even_odd(int n)

{

int maxeven=0, maxodd=0;

while(n)

{

coutn;

if(n%2==0)

{

if(n>maxeven)maxeven=n;

}

else if(n%2==1)

{

if(n>maxodd)

maxodd=n;

}

else if(n==0)

break;

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}

cout

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void factorial(int n)

{ int fact=1;

int i;

for(i=1; i

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{ coutn;

if(n>large)

large=n;

coutans;

}

cout>f;

greatest(d, e, f);

}

void greatest(int d, int e, int f)

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{ if(d>e && d>f)

coutf)

coute)

cout

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{ if(v[i]>large)

large=v[i];

else if(v[i]

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{ int temp;

temp =c;

c=d;

d=temp;

cout

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}

int sum(int n1)

{ int p=0;

while(n1)

{ p=p+(n1%10);

n1=n1/10;

}

return p;

}

OUTPUT

Enter number:356

Sum of digits : 14

54. Program to print all those elements of a matrix that are

on and are on the right side of main diagonal.

#include

void main()

{int arr[3][3];

cout

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{ if(i

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void negative(int arr1[], int size1)

{ for(int i=0; i

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{ if(i+j>4)

arr1[i][j]=0; }

for(i=0;i

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for(j=0; j

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cin>>B[j];

for(i=0,k=0; i

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coutn;

for(i=0; i

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}

}

cout

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for(i=0; i

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for(int j=0; j>A[i][j];

}

cout

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}

OUTPUT

Enter matrix A: 1 2 1

2 1 2

1 2 1

Enter matrix B: 2 1 2

1 2 1

2 1 2

Matrix A matrix B:

5 8 5

10 4 10

5 8 5

62. Program to delete duplicate elements of an array

with 0 and take all 0 to right.

#include

void main()

{ int A[10];

cout

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{ for(int j=i+1; A[j]!='\0'; j++)

{ if(A[i]==A[j])

{ for(int k=j; A[k]!='\0'; k++)

A[k]=A[k+1]; }

}}

for(i=0; A[i]!='\0'; i++)

{ if(A[i]==0)

A[i]='\0'; }

cout

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{

char cname[20];

int ccode;

int cday;

int cmonth;

int cyear;

int irate;

int totalamount;

int tot_years;

};

clients c[50];

void main()

{

clrscr();float ci[50];

for(int i=0; i>c[i].ccode;

cin>>c[i].cday;

cin>>c[i].cmonth;

cin>>c[i].cyear;

cin>>c[i].tot_years;

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cin>>c[i].irate;

cin>>c[i].totalamount;

}

for (i=0; i

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int eno;

char ename[20];

char eaddress[20];

}e[10];

void main()

{

clrscr();

int i,n;

char ans='y';

for(i=0;i>e[i].eno;

gets(e[i].ename);

gets(e[i].eaddress);do{

coutn;

if(n==e[i].eno)

{

cout

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coutans;

}

while(ans=='y');

}

}

65. Program to create an array containing details of

25 students (including Roll number, name, marks inthree subjects) and print out a list of students who

have failed in more than 1 subject. Assume 40%

marks as pass marks.

#include

#include

#includestruct student

{ int rno;

char name[20];

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int sub1;

int sub2;

int sub3;

}s[25];

void main()

{

for(int i=0;i>s[i].sub3;}

cout

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if(s[i].sub31)

{

puts(s[i].name)

cout