1. WAP to display hello world in C++.
#include<iostream.h>
int main(){
cout<<"Hello
World! "<<"\n";
return
0;
}
2. WAP to take 3 numbers and calculate sum and average in C++.
#include<iostream.h>
int main(){
int
n1,n2,n3,sum,avg;
cout<<"Enter
three numbers: "<<"\n";
cin>>n1>>n2>>n3;
sum=n1+n2+n3;
avg=sum/3;
cout<<"Sum
= "<<sum<<"\n"<<"Average =
"<<avg<<"\n";
return
0;
}
3. Calculate area and circumference of circle in C++. Hint area=pi*r*r and cf=2*pi*r.
#include<iostream.h>
int main(){
float pi=3.14,r,area,circum;
cout<<"Please enter the value of radius: "<<"\n";
cin>>r;
area=pi*r*r;
circum=2*pi*r;
cout<<"Area of circle is: "<<area<<"\n";
cout<<"Circumference of circle is: "<<circum<<"\n";
return 0;
}
4. WAP to calculate simple interest in C++. Hint. Si = PTR/100
#include<iostream.h>
int main(){
float
si,p,t,r;
cout<<"Enter
the value of principle,time and rate "<<"\n";
cin>>p>>t>>r;
si=(p*t*r)/100;
cout<<"Simple
Interest= "<<si<<"\n";
return
0;
}
5. Write a program in C++ to check whether the given number is odd or even.
#include<iostream.h>
int main(){
int num,rem;
cout<<"Enter the number: "<<"\n";
cin>>num;
rem=num%2;
if(rem==0){
cout<<"The number "<<num<<" is even"<<"\n";
}else{
cout<<"The number "<<num<<" is odd"<<"\n";
}
return 0;
}
6. Write a C++ program to input a number and check whether it is positive, negative or zero.
#include<iostream.h>
int main(){
int num;
cout<<"Enter the number: "<<"\n";
cin>>num;
if(num==0){
cout<<"The number "<<num<<" is Zero"<<"\n";
}else if(num>0){
cout<<"The number "<<num<<" is Positive"<<"\n";
}else{
cout<<"The number "<<num<<" is Negative"<<"\n";
}
return 0;
}
7. Write a C++ program that stores cost price(cp) and selling price(sp) and determines whether there is loss or gain.
#include<iostream.h>
int main(){
int cp,sp;
cout<<"Enter the cost price and selling price: "<<"\n";
cin>>cp>>sp;
if(cp==sp){
cout<<"There is no loss or no gain"<<"\n";
}else if(cp>sp){
cout<<"There is loss by "<<cp-sp<<" amount"<<"\n";
}else{
cout<<"There is gain by "<<sp-cp<<" amount"<<"\n";
}
return 0;
}
8. Write a C++ program that stores three different numbers and display the largest among them.
#include<iostream.h>
int main(){
int num1, num2, num3;
cout<<"Enter three numbers: "<<"\n";
cin>>num1>>num2>>num3;
cout<< "Amount three numbers "<<num1<<","<<num2<<","<<num3<<"\n";
if(num1>num2&&num1>num3){
cout<<"Number "<<num1<<" is greater."<<"\n";
}else if(num2>num3){
cout<<"Number "<<num2<<" is greater."<<"\n";
}else{
cout<<"Number "<<num3<<" is greater."<<"\n";
}
return 0;
}
9. Write a C++ program that stores three different numbers and display the smallest among them.
#include<iostream.h>
int main(){
int num1, num2, num3;
cout<<"Enter three numbers: "<<"\n";
cin>>num1>>num2>>num3;
cout<< "Amount three numbers "<<num1<<","<<num2<<","<<num3<<"\n";
if(num1<num2&&num1<num3){
cout<<"Number "<<num1<<" is smaller."<<"\n";
}else if(num2<num3){
cout<<"Number "<<num2<<" is smaller."<<"\n";
}else{
cout<<"Number "<<num3<<" is smaller."<<"\n";
}
return 0;
}
10. Write a C++ program that stores three different numbers and display the middle number among them. [Hint: 30,5,10=> 10 is the middle number].
#include<iostream.h>
int main(){
int num1, num2, num3;
cout<<"Enter three numbers: "<<"\n";
cin>>num1>>num2>>num3;
cout<< "Amount three numbers "<<num1<<","<<num2<<","<<num3<<"\n";
if(num2>num1&&num1>num3||num3>num1&&num1>num2){
cout<<"Number "<<num1<<" is middle."<<"\n";
}else if(num1>num2&&num2>num3||num3>num2&&num2>num1){
cout<<"Number "<<num2<<" is middle."<<"\n";
}else{
cout<<"Number "<<num3<<" is middle."<<"\n";
}
return 0;
}
WAP to find out whether the input number is even or odd?
#include<iostream.h>
int main(){
int num;
cout<<"Enter any number: "<<"\n";
cin>>num;
if(num%2==0){
cout<<"The number "<<num<<" is even."<<"\n";
}else{
cout<<"The number "<<num<<" is odd."<<"\n";
}
return 0;
}
WAP that checks whether the number entered by user is exactly divisible by 5 but not by 11?
#include<iostream.h>
int main(){
int num;
cout<<"Enter any number: "<<"\n";
cin>>num;
if(num%5==0&&num%11!=0){
cout<<"The number "<<num<<" is exactly divisible by 5 but not by 11."<<"\n";
}else{
cout<<"Invalid! You entered number "<<num<<" does not provide the required result of this program."<<"\n";
}
return 0;
}
WAP in c++ to display day of weeks while entering between 1 to 7.
#include<iostream.h>
int main(){
int n;
cout<<"Please enter between 1 to 7: ";
cin>>n;
switch(n){
case 1:
cout<<"Sunday";
cout<<"\n";
break;
case 2:
cout<<"Monday";
cout<<"\n";
break;
case 3:
cout<<"Tuesday";
cout<<"\n";
break;
case 4:
cout<<"Wednesday";
cout<<"\n";
break;
case 5:
cout<<"Thursday";
cout<<"\n";
break;
case 6:
cout<<"Friday";
cout<<"\n";
break;
case 7:
cout<<"Saturday";
cout<<"\n";
break;
default:
cout<<"Invalid! Please enter between 1 to 7";
cout<<"\n";
break;
}
return 0;
}
WAP in c++ to display following pattern
/*
*****
****
***
**
*
*/
#include<iostream.h>
int main(){
int i,j;
for(i=1;i<=5;i++){
for(j=i;j<=5;j++){
cout<<"*";
}
cout<<"\n";
}
return 0;
}
WAP in c++ to display following pattern
/*
*
**
***
****
*/
#include<iostream.h>
int main(){
int i,j;
for(i=1;i<=5;i++){
for(j=1;j<i;j++){
cout<<"*";
}
cout<<"\n";
}
return 0;
}
WAP in c++ to display following pattern
/*
*
**
***
****
*/
#include<iostream.h>
int main(){
int i,j,k,m=1,n;
cout<<"Please enter a number of rows: ";
cin>>n;
for(i=n;i>=1;i--){
for(j=1;j<=i-1;j++){
cout<<" ";
}
for(k=1;k<=m;k++){
cout<<"*";
}
cout<<"\n";
m++;
}
return 0;
}
//WAP in c++ to display following pattern
/*
*****
****
***
**
*
*/
#include<iostream.h>
int main(){
int i,j,k,m,n;
cout<<"Please enter a number of rows: ";
cin>>n;
m=n;
for(i=1;i<=n;i++){
for(j=1;j<i;j++){
cout<<" ";
}
for(k=1;k<=m;k++){
cout<<"*";
}
m--;
cout<<"\n";
}
return 0;
}
WAP in c++ to display following pattern
/*
*
* *
* * *
* * * *
* * * * *
*/
#include<iostream.h>
int main(){
int i,j,k,m,n;
cout<<"Please enter a number of rows: ";
cin>>n;
m=n;
for(i=1;i<=n;i++){
for(j=1;j<=m-1;j++){
cout<<" ";
}
for(k=1;k<=2*i-1;k++){
cout<<"*";
}
m--;
cout<<"\n";
}
return 0;
}
WAP in c++ to display following pattern
/*
* * * * *
* * * *
* * *
* *
*
*/
#include<iostream.h>
int main(){
int i,j,k,m,n;
cout<<"Please enter a number of rows: ";
cin>>n;
m=n;
for(i=n;i>=1;i--){
for(j=1;j<m;j++){
cout<<" ";
}
for(k=1;k<=2*i-1;k++){
cout<<"*";
}
m++;
cout<<"\n";
}
return 0;
}
WAP in c++ to display following pattern
/*
*
* *
* *
* *
* *
*******
*/
#include<iostream.h>
int main(){
int i,j,n;
cout<<"Please enter a number of rows: ";
cin>>n;
for(i=1;i<=n;i++){
for(j=1;j<=i;j++){
if(j==1||i==j||i==n){
cout<<"*";
}else{
cout<<" ";
}
}
cout<<"\n";
}
return 0;
}
Functions
WAP in c++ to display greatest numbers among three numbers entered by user using function int greatest(int,int,int).
#include<iostream.h>
int greatest(int,int,int);
int main(){
int n1,n2,n3,grt;
cout<<"Enter three numbers to check greatest: ";
cin>>n1>>n2>>n3;
grt=greatest(n1,n2,n3);
cout<<"Greatest number is: "<<grt<<"\n";
return 0;
}
int greatest(int num1,int num2, int num3){
if(num1>num2&&num1>num3){
return num1;
}
else if(num2>num1&&num2>num3){
return num2;
}
else{
return num3;
}
}
WAP that checks whether the number entered by user is exactly divisible by 5 but not by 11 using function?
#include<iostream.h>
void checknum(void);
int main(){
checknum();
return 0;
}
void checknum(void){
int num;
cout<<"Enter any number: "<<"\n";
cin>>num;
if(num%5==0&&num%11!=0){
cout<<"The number "<<num<<" is exactly divisible by 5 but not by 11."<<"\n";
}else{
cout<<"Invalid! You entered number "<<num<<" does not provide the required result of this program."<<"\n";
}
}
WAP that enter SP and CP and determine whether there is profit of loss using function?
#include<iostream.h>
void profit(int);
void loss(int);
int main(){
int sp,cp,p,l;
cout<<"Enter cost price and selling price : "<<"\n";
cin>>cp>>sp;
p=sp-cp;
l=cp-sp;
if((sp-cp)>0){
profit(p);
}else{
loss(l);
}
return 0;
}
void profit(int p){
cout<<"Profit is : "<<p<<"\n";
}
void loss(int l){
cout<<"Loss is : "<<l<<"\n";
}
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