C++ Program to take a square of an integer value:

C++ Program to  square a number:

Code:

#include <iostream>           //include libraries

using namespace std;

int main()

{

    int i=1,j=0,k=0;                               // defining numerical variable value

    cout<<"enter value:";

    while(i<=20)                // using while loop to execute the same block of code until condition is met

    {

    cin>>j;

    k=j*j;                             

    i++;                              // it mean increment

    cout<<"square of enter number is="<<k;                           //displays the output

}

    return 0;

}

OUTPUT: