🚨 I just discovered a C++ surprise!

I was playing around with arrays in C++ and wrote this simple code 👇

include

using namespace std;

int main() {
int marks[5] = {23, 22, 33, 43, 50};
cout << marks[8] << endl;
return 0;
}

Guess what happened?

💥 Output: 4199048

No error. No warning. Just a random number.

At first I thought something was wrong with my compiler, but then I realized:
👉** C++ does not check array bounds.**

That means if you try to access an index that doesn’t exist, it still “works” — but you’re reading from some random place in memory.
This is called undefined behavior, and it’s one of those sneaky things that make C++ both powerful and dangerous.

🔍 Lesson learned:

Always stay inside the array bounds, or use safer options like:

std::array → gives runtime errors for out-of-range access.