Merge pull request #133 from agnipanda/master

added reversing no using py3

Author: t2013anurag

encryption_algorithms/simple_encryption_algo_python3/decrypt.py

@@ -0,0 +1,11 @@
+f1=open("encrypted_file.txt","r")
+s=f1.read()
+f1.close()
+s=list(s)
+for i in range(len(s)):
+	s[i]=chr(ord(s[i])-len(s)+i)
+s.reverse()
+s="".join(s)
+f2=open("decrypted_file.txt","w+")
+f2.write(s)
+f2.close()

encryption_algorithms/simple_encryption_algo_python3/encrypt.py

@@ -0,0 +1,11 @@
+f1=open("file_before_enc.txt","r")
+s=f1.read()
+f1.close()
+s=list(s)
+s.reverse()
+for i in range(len(s)):
+	s[i]=chr(ord(s[i])+len(s)-i)
+s="".join(s)
+f2=open("encrypted_file.txt","w+")
+f2.write(s)
+f2.close()

encryption_algorithms/simple_encryption_algo_python3/file_before_enc.txt

@@ -0,0 +1 @@
+hello world...!!

linked_list/linked_list_in_cpp.cpp

@@ -0,0 +1,107 @@
+#include "iostream.h"
+using namespace std;
+struct Node
+{
+	int data;
+	Node* link;
+};
+Node* A;
+void insert()
+{
+	int n,p;
+	cout<<"Enter the no to be Inserted:";
+	cin>>n;
+	cout<<"Enter the position:";
+	cin>>p;
+	Node* temp=new Node;
+	if (p==1)
+	{
+		temp->link=A;
+		temp->data=n;
+		A=temp;
+		return;
+	}
+	Node* temp2=A;
+	for(int i=1;i<p-1;i++)
+	{
+		temp2=temp2->link;
+	}
+	temp->link=temp2->link;
+	temp2->link=temp;
+	temp->data=n;
+}
+void delet()
+{
+	int p;
+	cout<<"Enter the position of the element to be deleted:";
+	cin>>p;
+	Node* temp=A;
+	if (p==1)
+	{
+		A=temp->link;
+		temp=NULL;
+		return;
+	}
+	Node* temp2=new Node;
+	for(int i=1;i<p-1;i++)
+	{
+		temp=temp->link;
+	}
+	temp2=temp->link;
+	temp->link=temp2->link;
+	temp2=NULL;
+
+}
+void display()
+{
+	Node* temp=A;
+	while(temp!=NULL)
+	{
+		cout<<"->"<<temp->data;
+		temp=temp->link;
+	}
+	cout<<"\n"<<"---------------------------"<<"\n";
+}
+void rev()
+{
+	Node* temp=A;
+	Node* temp2=new Node;
+	Node* prev=temp->link;
+	while(prev!=NULL)
+	{
+		temp2=prev->link;
+		prev->link=temp;
+		temp=prev;
+		prev=temp2;
+	}
+	A->link=NULL;
+	A=temp;
+}
+void main()
+{
+	A=NULL;
+	while(1)
+	{
+		int ch;
+		cout<<"Enter your choice:\n1-Insert\n2-Delete\n3-Display\n4-Reverse\n5-Exit\n->";
+		cin>>ch;
+		switch(ch)
+		{
+			case 1:
+				insert();
+				break;
+			case 2:
+				delet();
+				break;
+			case 3:
+				display();
+				break;
+			case 4:
+				rev();
+				break;
+			case 5:
+				exit(0);
+		}
+	}
+}
+

reverse_a_number/revno.py

@@ -0,0 +1,5 @@
+n=input("Enter a number:")
+l=list(n)
+l.reverse()
+n="".join(l)
+print(n,"\n")