I am a 4 year experienced software engineer. At starting I used to refer blogs and get a solution template and modify my needs. Later after used many AI tools and just copy pasted my needs. Now searching for job where I struggle to think and type code.

In a over confidence attended a interview where they asked

// TestString str;

// TestString str1("Hello");

// TestString str2 = str1;

// TestString str3 = str1 + "world";

// std::cout << str3; --- HelloWorld

// Implement TestString class in C++ without using std::string

// You can include cstring.h to use utility function

I getting ideas, but I couldn't type and get output, syntax errors, logical errors.

Now preparing from intermediate and learning. Any guidence or input would be helpful.