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Program to display series 2,4,16,256... using while loop

 
#include<stdio.h>
#include<conio.h>

int main()
{
    int n,x;  // declare the variable 
    long double i=2;  //declare the variable of long double type
    clrscr();  

    printf(\"Enter the number : \");
    scanf(\"%d\",&n);

    printf(\"\\n\");

    x=1;
    while(x<=n)   //  loop will be execute till the value of x I less or equal n
    {
        printf(\"%.2Lf\\n\",i);  // print the value of I upto 2 decimals only
        x++;
        i*=i;
    }

    getch();

    return 0;
}


Output:

Enter the number : 4

2.00
4.00
16.00
256.00

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