added strings in cpp

Author: GauravWalia19

C++/Data-Structures/STRING/Strings.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+#include <string>
+using namespace std;
+int main()
+{
+    string str;
+    cout << "Enter any string"<<endl;
+    getline(cin,str);
+    cout << "Entered String: " << str << endl;
+    
+    if(str=="hello world")
+    {
+        cout << "It is equal to hello world" << endl;
+    }
+    else
+    {
+        cout << "It is not equal to hello world" << endl;
+    }
+
+    cout << "String length: "<<str.length() << endl;
+    cout << "String with append: " << str.append("hello") << endl;
+
+    str.push_back('a');
+    cout << str << endl;
+    str.pop_back();
+    cout << str << endl;
+
+    cout << "CAPACITY: " << str.capacity() << endl;
+
+    string str1="anonymous";
+    cout << "str: " << str << endl;
+    cout << "str1: "<< str1 << endl<<endl;
+
+    str.swap(str1);
+    cout << "After swapping function" << endl;
+    cout << "str: " << str << endl;
+    cout << "str1: "<<str1 << endl; 
+}

C++/README.md

@@ -22,6 +22,8 @@
 
 #### STRING
 
+* [Strings](Data-Structures/STRING/Strings.cpp)
+
 #### LISTS
 
 * SINGLE

datastructures.md

@@ -89,6 +89,7 @@ Indexer for Data Structures Lover
 * docs
 * implementation
   * [C](C/Data-Structures/STRING/String.c)
+  * [C++](C++/Data-Structures/STRING/Strings.cpp)
   * [JAVA](Java/Data-Structures/STRING/Strings.java)
 * complexity
 

docs/complexity.md

@@ -65,8 +65,8 @@ This page contains the complexities of different algorithms in this repository.
       * [HEAPED 3D ARRAY](#dynamic-3d-arrays-(CC++))
       * [JAGGED ARRAY](#jagged-array)
   * [STRING](#string)
-    * [Strings in C]
-    * [Strings in C++]
+    * [Strings in C](#strings-in-c)
+    * [Strings in C++](#strings-in-cpp)
     * [Strings in JAVA](#strings-in-java)
   * [LISTS](#lists)
     * SINGLE
@@ -333,6 +333,10 @@ This page contains the complexities of different algorithms in this repository.
 
 ### STRING
 
+#### Strings in C
+
+#### Strings in CPP
+
 #### Strings in JAVA
 
 SNo. | Methods | Order of complexity O(n) | Type of Complexity