Day 2 / 100 (C++)

🖥️ What I Learned

• Text vs Expressions:
  "4" is just text, while 4 + 3 is an expression that actually gets computed.

• Variables:
  Variables are like containers that hold data. You can store, update, and reuse values throughout your program.

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💻 Example Code

#include <iostream>
using namespace std;

int main() {
    // Printing text vs expression
    cout << "4" << endl;      // Just prints the text 4
    cout << 4 + 3 << endl;    // Computes and prints 7

    // Working with variables
    int x = 5;          // store 5 in x
    cout << x << endl;  

    x = 8;              // update x to 8
    cout << x << endl;  

    x += 3;             // add 3 to x (now x = 11)
    cout << x << endl;  

    return 0;
}

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🔑 Takeaway

Variables make your code flexible. Instead of hardcoding numbers everywhere, you store values in containers and update them when needed. It’s like giving your code memory.

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#100DaysOfCode #LearnInPublic #CodeNewbie #C++ #Programming

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