#include <iostream.h>
#include <conio.h>
#include <fstream.h>
#include <math.h>
int index_z=0,min,max;
char alpha[10],temp;
inline void intialize_values(int m) {
     for (int j=0;j<m;j++)
     { alpha[j]='a'; }
     }
inline int increament(int l) {
     for (int a=l-1;a>=0;a--)
     {
         if (alpha[a]=='z' && min<=max) {
                            alpha[a]='a';
                            index_z++; }
         else {
              temp=alpha[a];
              temp++;
              alpha[a]=temp;
              index_z=0;
              break; }
     }
     if (index_z==l) {
                     l++; }
     return l; 
     }
         
int main () {
    int len,val,last,check;
    double total=0E+0;
    ofstream outfile("random.txt");
    do {
        system("cls");
    cout << "min = ";
    cin >> min;
    cout << "max = ";
    cin >> max; } while(min>max || max==0);
    len=min;
    last=min;
    val=min;
    for (int i=min;i<=max;i++)
    {
    intialize_values(val);
    check=1;
    while (check==1) {
    for (int k=0;k<len;k++) {
        cout << alpha[k]; }
        cout << "\n";
    total++;
    len=increament(last);
    if (len>last) {
                  last++;
                  check=0;
                  val++; }
                  }
    }
    cout << "\n\n\n";
    cout << "Total Generated = " << total << endl;
    double ch=0E+0;
    for (int i=min;i<=max;i++) {  
    ch+=pow(26,i); }
    if (total==ch)
    cout << "\n\n" << "Task Completed Successfully.";
    cout << "\n\n\n\t\t\tpress any key to exit...";
    getch();
    return 0;
}
    

#include <stdio.h>

int main(){
	unsigned char a[5];
	memset(a,0,sizeof(a));
	while (1){
		int b;
		printf("%d.%d.%d.%d\n",a[0],a[1],a[2],a[3]);
		a[0]++;
		for (b=0;b<3;b++){
			if (!a[b])
				a[b+1]++;
			else
				break;
		}
		if (a[4])
			break;
	}
	return 0;
}