transposition.cpp

This program sorts words in a line of text by length.

#include <iostream.h>
#include <conio.h>
#include <string.h>
#include <stdio.h>
#define r_size 5
void main()
{
	clrscr();
	char msg[50];
	int i,j,k,k1,j1;
	char encrypt[10][r_size];
	cout<<"\n\n\t\t\tEncryption by Transposition";
	cout<<"\n\tEnter your message : ";
	gets(msg);
	k=0;
	j=0;
	for(i=0;i<strlen(msg);i++,k++)
	{
		if(k<r_size)
			;
		else
			{
				j++;
				k=0;
			}
		encrypt[j][k]=msg[i];
	}
	encrypt[j][k]='\0';
	cout<<"\n\n\tEncrypted message is : ";
	for(k1=0;k1<r_size;k1++)
	{
		for(j1=0;j1<=j;j1++)
		{
			if(encrypt[j1][k1]=='\0')
				{
					j1=j+1;
					j--;
					continue;
				}
			else
				cout<<encrypt[j1][k1];
		}
	}
	getch();
}