#include#include using namespace std; int main() { char first_str[] = "Hello"; char second_str[] = "World"; strcat(first_str, second_str); cout << first_str; return 0; }
#includeThis code will concatenate three strings "This is ", "a concatenated ", and "string." using the "+" operator and output the final concatenated result string "This is a concatenated string." The package library used in this example is the C++ standard library string class.#include using namespace std; int main() { string first_str = "This is "; string second_str = "a concatenated "; string third_str = "string."; string result_str = first_str + second_str + third_str; cout << result_str; return 0; }