Answer Posted / dudelzy

Simplest one:

#include <iostream>

using namespace std;

int main()
{
int x, a = 0, b = 1, i, z;
cout << "Lets Start!" << endl;
cout << "No. of elements in the series = ";
cin >> x;
cout << "Series: " << endl;
for(i = 0; i < x; i++){
z = a + b;
a = b;
b = z;
cout << z << endl;
}

return 0;
}

Reads in the size of a square from the screen; 2. Prints a hollow square of that size out of “-“, “|” and blanks on screen; 3. Prints the same hollow square onto a text file. Your program should work for squares of all side sizes between 1 and 20. --- │ │ │ │ │ │ ---

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