Q2.
1 2 4 8 16 32 64 128 256
#include<iostream.h>
#include<conio.h>
void main()
{
int n,i;
cout<<"Plz Enter Num";
cin>>n;
cout<<"Num of series =";
for(i=1;i<=n;i=i*2)
{
cout<<i<<"\t";
}
getch();
}


#include<iostream.h>
#include<conio.h>
void main()
{
int a,b,c,d,e;
cout<<"Plz Enter Num"<<"\t";
cin>>a;
int square=a*a;
int cube=a*a*a;
cout<<"Plz Enter Num"<<"\t";
cin>>b;
int squar=b*b;
int cub=b*b*b;
cout<<"Plz Enter Num"<<"\t";
cin>>c;
int squa=c*c;
int cu=c*c*c;
cout<<"Plz Enter Num"<<"\t";
cin>>d;
int sq=d*d;
int ca=d*d*d;
cout<<"Plz Enter Num"<<"\t";
cin>>e;
int s=e*e;
int cb=e*e*e;
cout<<"Num"<<"\t"<<"square"<<"\t"<<"cube"<<endl;
cout<<a<<"\t"<<square<<"\t"<<cube<<endl;
cout<<b<<"\t"<<squar<<"\t"<<cub<<endl;
cout<<c<<"\t"<<squa<<"\t"<<cu<<endl;
cout<<d<<"\t"<<sq<<"\t"<<ca<<endl;
cout<<e<<"\t"<<s<<"\t"<<cb<<endl;

getch();
}

#include<iostream.h>
#include<conio.h>
void main()
{
int i,sum=0;
for(i=1;i<=10;i++)
{
cout<<i;
sum=sum+i;
}
cout<<"Sum of ="<<sum;
getch();
}

#include<iostream.h>
#include<conio.h>
void main()
{
	int a[10],i,smallest;
	cout<<"Plz Enter Array Indexes"<<"\t";
	for(i=0;i<10;i++)
{
	cin>>a[i];
}
smallest=a[0];
	for(i=0;i<10;i++)
{
	if(a[i]<smallest)
	{
		smallest=a[i];
	}
}
cout<<"smallest Array Indexes ="<<"\t"<<smallest<<endl;
getch();
}


#include<iostream.h>
#include<conio.h>
void main()
{
int a[100],i,j,k,s;
cout<<"enter array Size";
cin>>s;
for(i=0;i<s;i++)
{
cin>>a[i];
}
for(i=0;i<s;i++)
for(j=i+1;j<s;)
if(a[i]==a[j])
{
for(k=j;k<s;k++)
{
a[k]=a[k+1];
}
s--;
}
else
j++;

for(i=0;i<s;i++)
{
cout<<a[i]<<endl;
}
getch();
}



#include<iostream.h>
#include<conio.h>
void main()
{
	char ch[20],ch1[20];
	int i,c=0;
	cout<<"Enter Character Lenght"<<endl;
	cin>>ch;
	for(i=0;ch[i]!='\0';i++)
	{
	ch1[i]=ch[i];
	c++;
	}
	cout<<c<<endl;
	cout<<ch1<<endl;
	getch();
}


#include<iostream.h>
#include<conio.h>
#include<math.h>
double power(int x, int y);
int main()
{
	int x,y;
	double rec;
	cin>>x;
	cin>>y;
	rec = power(x,y);
	cout<<rec;
	getch();
}
double power(int x,int y)
{
	double ret;
	ret = y(x^y);
	return ret;
}