Create Leetcode_28.cpp

Use only the solution block to submit code on Leetcode

Author: Hrudhay-H

Leetcode_28.cpp

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+#include <iostream>  // Include the input-output stream library
+#include <string>    // Include the string library
+
+using namespace std; // Use the standard namespace to avoid prefixing std::
+
+// Define a class named Solution
+class Solution {
+    public:
+        // Function to find the first occurrence of "needle" in "haystack"
+        int strStr(string haystack, string needle) {
+            return haystack.find(needle); // Using the find() function of the string class
+        }
+};
+
+int main()
+{
+    string haystack = "hello";  // Define the main string where we search
+    string needle = "ll";       // Define the substring to be found
+
+    Solution a;  // Create an instance of the Solution class
+    int result = a.strStr(haystack, needle);  // Call strStr() and store the result
+
+    cout << result << endl;  // Print the result (index of first occurrence or -1 if not found)
+
+    return 0;  // Indicate successful program termination
+}