Create rotation_string.cpp

rotation_string.cpp

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+// C program for Left Rotation and Right 
+// Rotation of a String 
+#include<bits/stdc++.h> 
+using namespace std; 
+
+// In-place rotates s towards left by d 
+void leftrotate(string &s, int d) 
+{ 
+	reverse(s.begin(), s.begin()+d); 
+	reverse(s.begin()+d, s.end()); 
+	reverse(s.begin(), s.end()); 
+} 
+
+// In-place rotates s towards right by d 
+void rightrotate(string &s, int d) 
+{ 
+leftrotate(s, s.length()-d); 
+} 
+
+// Driver code 
+int main() 
+{ 
+	string str1 = "anupam and arnab"; 
+	leftrotate(str1, 2); 
+	cout << str1 << endl; 
+
+	string str2 = "anupam and arnab"; 
+	rightrotate(str2, 2); 
+	cout << str2 << endl; 
+	return 0; 
+}