Question

I have a problem in c++ :
i should read a vector from the keyboard for example v=(2,4,8,25,3,66) and after this i should display another vector that contains the numbers 4 and 25 because 4=2*2 and 25=5*5 .

Answer 1

i.e. you want to use the cin to get input and a function that tests if the number is a square of another number?

Answer 2

this is an example for an array.
#include <iostream>
using namespace std;
int main()
{
int list[]={6,7,8,9};
int i,j;
for (i=0;i<4;i++)
{
for (j=0;j<list[i];j++)
{
if (j*j==list[i])
{
cout<<list[i]<<"-->"<<j<<"F\n";
}
}
}
}