C++ Practical Section 9

41.  Write a program for input a number and print in table.
Answer :

#include<iostream.h>
#include<conio.h>

Void main()
{
int i,n,t;
cout<<"Enter a Number";
cin>>n;

for(i=1;i<=10;i++)
{
t=n*i;
cout<<t<<" ";
}
getch();
}

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42.  Write a program for Reverse Number of a Table.
Answer :

#include<iostream.h>
#include<conio.h>

Void main()
{
int i,n,t;
cout<<"Enter a Number";
cin>>n;

for(i=10; i>=1; i--)
{
t=n*i;
cout<<t<<" ";
}
getch();
}

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43.  Write a Program to calculate the Factorial Number.
Answer :

#include<iostream.h>
#include<conio.h>

Void main()
{
int i,n,f=1;
cout<<"\n Enter a Number";
cin>>n;

for(i=`;i<=n;i++)
{
f=f*i;
}
cout<<"\n Factorial = "<<f;
getch();
}

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44. Write a Program to input a number and find its sum of natural number.
Answer :

#include<iostream.h>
#include<conio.h>

Void main()
{
int n,s;
cout<<"Enter a Number";
cin>>n;

for(i=1; i<=n; i++)
{
s=s+i;
}
cout<<"The Sum of Natural Number="<<s;
getch();
}

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45.  Write a Program for sum of squares of a Natural Numbers.
Answer :

#include<iostream.h>
#include<conio.h>

Void main()
{
int n,s;
cout<<"Enter a Number";
cin>>n;

for(i=1; i<=n; i++)
{
s=s+i*i;
}
cout<<"\n Sum="<<s;
getch();
}


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