Strings and its operations

Declaration and Initialization :
#include <iostream>
#include <string>
using namespace std;
 
// Declaring and initializing a string variable
string str = "Hello, World!";
 
String Concatenation:
// Using the + operator to concatenate two strings
string str1 = "Hello";
string str2 = "World";
string result = str1 + ", " + str2 + "!";
cout << result << endl; // Output: "Hello, World!"
 
String Length:
// Using the length() function to get the length of a string
string str = "Hello, World!";
int len = str.length();
cout << len << endl; // Output: 13
 
String Search:
// Using the find() function to search for a substring within a string
string str = "Hello, World!";
int index = str.find("World");
if (index != string::npos) {
	cout << "Found at index " << index << endl;
} else {
	cout << "Not found" << endl;
}
// Output: "Found at index 7"

1. Reverse words in a string

2. Z-Function