Q 1. Write a program to display any message on the screen.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
cout<<"Welcome to Coding Smash!";
return 0;
}
OUTPUT:
Q2. Write a program to find sum, difference, product and division
of two numbers.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int a, b, sum, sub, mul, div;
cout<<"Enter any two numbers: "<<endl;
cin>>a>>b;
sum= a+b;
sub= a-b;
mul= a*b;
div= a/b;
cout<<"Sum of the two no.s: "<<sum<<endl;
cout<<"Difference of the two no.s: "<<sub<<endl;
cout<<"Product of the two no.s: "<<mul<<endl;
cout<<"Division of the two no.s: "<<div<<endl;
return 0;
}
OUTPUT:
Q3. Write a program to check whether a number is even or odd.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int n;
cout<<"Enter any number: ";
cin>>n;
if(n % 2 == 0)
{
cout<<"It is an even number.";
}
else
{
cout<<"It is an odd number.";
}
return 0;
}
OUTPUT:
Q4. Write a program to get the smaller of two numbers.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int a, b;
cout<<"Enter the first number: ";
cin>>a;
cout<<"Enter the second number: ";
cin>>b;
if (a<b)
cout<<"Smaller no. is: "<<a;
else
cout<<"Smaller no. is: "<<b;
return 0;
}
OUTPUT:
Q5. Write a program to swap two numbers.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int a, b;
cout<<"Enter the first number: ";
cin>>a;
cout<<"Enter the second number: ";
cin>>b;
a= a+b;
b= a-b;
a= a-b;
cout<<"After swapping,"<<endl;
cout<<"First no. is: "<<a<<endl;
cout<<"Second no. is: "<<b;
return 0;
}
OUTPUT:
Q6. Write a program to find factorial of a number.
#include<iostream.h>
#include<conio.h>
using namespace std;
int fact(int n)
{
if (n==0)
return 1;
else
return n*fact(n-1);
}
int main()
{
int n;
cout<<"Enter any no.: "<<endl;
cin>>n;
cout<<"Factorial of the entered no. is: "<<fact(n);
return 0;
}
OUTPUT:
Q7. Write a program to find sum of first 'n' natural numbers.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int n, sum ;
cout << "Enter total numbers: ";
cin >> n;
sum= n*(n+1)/2;
cout<<"The Sum of first "<<n<<" natural numbers is "<< sum;
return 0;
}
OUTPUT:
Q8. Write a program to display fibonacci series.
#include <iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int t1=0, t2=1, t3, i,total;
cout<<"Enter total number of terms: ";
cin>>total;
cout<<t1<<" "<<t2<<" ";
for(i=2; i<total; ++i)
{
t3= t1 + t2;
cout<<t3<<" ";
t1=t2;
t2=t3;
}
return 0;
}
OUTPUT:
Q9. Write a program to check whether a number is palindrome or not.
#include <iostream.h>
#include<conio.h>
using namespace std;
int main()
{
int num, r, res=0, temp;
cout<<"Enter any Number: ";
cin>>num;
temp=num;
while(num>0)
{
r=num%10;
res=(res*10) + r;
num=num/10;
}
if(temp==res)
cout<<"It is Palindrome.";
else
cout<<"It's not Palindrome.";
return 0;
}
OUTPUT:
Q10. Write a program create multiplication table.
#include <iostream.h>
#include <conio.h>
using namespace std;
int main()
{
int n=1;
cout << "Enter any number: ";
cin>>n;
for(int i=1; i<=10; i++)
{
cout<<n<<" * "<<i<<" = "<<n*i<< endl;;
}
return 0;
}
OUTPUT:
Q11. Write a program to make a simple calculator.
#include<iostream.h>
#include<conio.h>
using namespace std;
int main()
{
char op;
int a, b;
cout << "Choose an operator: +, -, * or /: ";
cin >> op;
cout << "\nEnter any two numbers: ";
cin >> a >> b;
switch(op)
{
case '+':
cout <<"\nSum: "<< a+b;
break;
case '-':
cout <<"\nDifference : "<< a-b;
break;
case '*':
cout <<"\nProduct: "<<a*b;
break;
case '/':
cout <<"\nDivision: "<<a/b;
break;
default:
cout<<"An error occurred. ";
break;
}
return 0 ;
}
OUTPUT:
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