پروژه هاي برنامه نويسي

[آبجی]

الگوریتم کلی و سورس کامل مثلث n عددی:

#include <iostream.h>
int cNum (int k)
{
 int val =1;
 while( k/10 > 0 )
 {
  k /=10;
  val ++;
 }
 return val;
}
int cNumCount (int k)
{
 int val = 0;
 for( int i=k; i>0 && cNum(i)== cNum(k); i--)
   val ++;
 return val;
}
int main()
{
 int n, c, b, j;
 cout<<"\n add ro vared konid >";
 cin>>n;
 c = n*2;
 b = 1;
 for(int i=0;i<n;i++){
   cout<<"\n";
   for(j=0;j<c-i-cNumCount(b)*(cNum(i)-1);j++)
    cout<<" ";
   for( j=1;j<=b;j++)
    cout<<j;
   for( j=1;j<i+cNum(i);j++)
    cout<<j;
   b+=1;
 }
 return 0; 

}

[آبجی]

برنامه ای که داخل فایل(Data.Txt) کلمه ای رو که بیشترین تکرار رو داشته باشه رو برمیگردونه.

     #include "iostream.h"
#include "stdio.h"
#include "stdlib.h"
#include "conio.h"
void main()
{
 clrscr();
 FILE *f1;
 struct txt
 {
  char name[20];
  int rep;
  }list[10];
  f1=fopen("Data.txt","rb");
  for(int i=0;i<10;i++)
  list[i].rep=0;
  int j=0;
  char A[20];
  while(f1 != NULL && !feof(f1))
  {
   fscanf(f1,"%s",&A);           
   for(int i=0;i<j;i++)
    if( strcmp(list[i].name, A)==0 ){
     list[i].rep++;
     break;
    }else{
     strcpy(list[j].name, A);    
     list[j].rep = 1;
    }
      j++;
  }
  fclose(f1); 
  int max=0;
  for(int k=1;k<10;k++)
    if(list[k].rep>list[max].rep)
      max=k;
  cout<<list[max].name;
  getch();
} 

[آبجی]

برنامه کاربردی برای آموزش استفاده از فایل و Structها

#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <ctype.h>
#include <string.h>
struct address {
       char name[30] ;
       char street[30] ;
       char city[20] ;
       char state[3] ;
       char zip[10] ;
       struct address *next ;
       struct address *prior ;
} list_entry ;
struct address *start ;
struct address *last ;
void enter() , display() , search() ;
void save()  , load()    , list() , del();
void display(struct address *info, int *row);
struct address *find(char *);
int menu_select();
struct address *store(struct address *, struct address *);
int main ()
{
       start = last = NULL ;
       for(;;) {
   switch(menu_select()) {
        case 1:  enter();  break ;
        case 2 : del();    break ;
    case 3:  list() ;  break ;
        case 4:  search(); break ;
        case 5:  save();   break ;
        case 6:  load();   break ;
        case 7:  exit(0) ;
     }//end of switch
       }//end of for
}//end of main
//****************
int menu_select()
{
      char s[5];
      clrscr() ;
      gotoxy(25, 4) ;
      printf("1. enter a name ") ;
      gotoxy(25, 6) ;
      printf("2. delete a name ") ;
      gotoxy(25, 8) ;
      printf("3. list all files ") ;
      gotoxy(25, 10) ;
      printf("4. search ") ;
      gotoxy(25, 12) ;
      printf("5. save the file  ") ;
      gotoxy(25, 14) ;
      printf("6. load the file  ") ;
      gotoxy(25, 16) ;
      printf("7. quit ") ;
      do {
   gotoxy(20, 18) ;
   printf("enter your select--www.gach18.blogfa.ir(1-7):");
   gets(s);
      } while (atoi(s) < 0 || atoi(s) > 7) ;
      return atoi(s) ;
}
//*********************
void enter ()
{
   struct address *info ;
   int i ;
   char ch ;
   clrscr() ;
   gotoxy(3, 2) ;
   printf("   name        street     city     state    zip");
   gotoxy(3, 3) ;
   printf(" ------------ -------- ");
   printf("--------   -----  ------- ");
   i = 4 ;
   for (;;) {
     info = (struct address *)malloc(sizeof(list_entry)) ;
     if(!info) {
 printf("\n out of memory. press a key ") ;
 getch();
 return ;
     }
     gotoxy(3, i) ;
     gets(info -> name) ;
     if (!info -> name[0]) {
   gotoxy(15, i + 1) ;
   printf("press a key to continue");
   getch() ;
   break ;
     }//end of if
     gotoxy(18, i);
     gets(info -> street) ;
     gotoxy(28, i) ;
     gets(info -> city) ;
     gotoxy(38, i) ;
     gets(info -> state) ;
     gotoxy(45, i) ;
     gets(info -> zip) ;
     i++ ;
     start = store(info, start) ;
     } /* entry loop */
 }
//**************
struct address *store(struct address *i, struct address *top)
{
   struct address *old, *p ;
   if(last == NULL) {
 i -> next = NULL ;
 i -> prior = NULL ;
 start = i;
 last = i ;
 return i ;
   }
   p = top ;
   old = NULL ;
   while (p != NULL) {
       if(strcmp(p -> name, i -> name) < 0) {
       old = p ;
       p = p -> next ;
       }//end of if
       else {
      if (p -> prior) {
    p -> prior -> next=i ;
    i -> next=p ;
    i -> prior=p -> prior;
    p -> prior=i ;
    return top ;
      }//end of if
      i -> next = p ;
      i -> prior = NULL ;
      p -> prior = i ;
      return i ;
       }//end of if
   } // end of while
   old -> next = i ;
   i -> next = NULL ;
   i -> prior = old ;
   last = i ;
   return start ;
}
//******************
void del()
{
   struct address *info;
   char name[80];
   gotoxy(20, 20) ;
   printf(" enter name for delete : ") ;
   gets(name) ;
   info = find(name) ;
   if(info == NULL) {
       gotoxy(10, 20) ;
       printf(" name not found! press a key to continue.");
       getch() ;
   }
   if (info)
     if (start == info)
 {
   start = info -> next ;
   if(start)
      start -> prior = NULL ;
   else
      last = NULL ;
 } //end of if
     else  {
    info -> prior -> next = info -> next;
    if(info != last)
   info -> next -> prior = info -> prior;
    else
  last = info -> prior ;
     } //end of else
     free(info) ;
     gotoxy(10,20) ;
     printf("name deleted, press a key to continue.");
     getch() ;
}
//*******************************
struct address *find(char *name)
{
     struct address *info ;
     info = start ;
     while(info != NULL) {
 if (strcmp(name, info -> name) == 0)
    return info;
 info = info -> next ;
     }
     return NULL ;
}
//*****************
void list ()
{
    struct address *info ;
    int i ;
    info = start ;
    clrscr() ;
    gotoxy(3, 2) ;
    printf("   name        street     city     state    zip");
    gotoxy(3, 3) ;
    printf(" ------------ --------  -");
    printf("-------   -----  ------- ");
    i = 4 ;
    while(info != NULL) {
 display(info, &i) ;
 info = info -> next ;
    }
    gotoxy(15, i + 2) ;
    printf("press a key to continue.");
    getch() ;
}
//*******************
void display(struct address *info, int *row)
{
   gotoxy(3, *row) ;
   printf("%s", info -> name) ;
   gotoxy(18, *row) ;
   printf("%s", info -> street) ;
   gotoxy(28, *row) ;
   printf("%s", info -> city) ;
   gotoxy(38, *row) ;
   printf(info -> state) ;
   gotoxy(47, *row) ;
   printf(info -> zip) ;
   *row = *row + 1 ;
}
//**************************
void search()
{
     char name[40] ;
     int i ;
     struct address *info;
     gotoxy(20, 20) ;
     printf(" enter name to find : ");
     gets(name) ;
     info = find(name) ;
     if(info == NULL) {
   gotoxy(10, 20) ;
   printf(" name not found! press a key to continue.");
   getch() ;
     }//end of if
     else  {
   clrscr() ;
   gotoxy(3, 2) ;
   printf("   name        street   city     state   zip");
   gotoxy(3, 3) ;
   printf(" ------------ -------");
   printf("-  --------   -----  ------- ") ;
   i = 4 ;
   display(info ,&i) ;
   gotoxy(15, i + 2) ;
   printf("press a key to continue.");
   getch() ;
     }//end of else
}
//*********************
void save()
{
    struct address *info ;
    FILE *fp ;
    if((fp = fopen("l.dat","wb")) == NULL)  {
 printf("\n cannot open file. ") ;
 getch();
 exit(1) ;
    }//end of if
    gotoxy(20, 20) ;
    printf("<< saving file >>") ;
    info = start ;
    while(info) {
      fwrite(info, sizeof(struct address), 1, fp);
      info = info -> next ;
    }//end of while
    fclose(fp) ;
    gotoxy(15, 22) ;
    printf("file successfuly saved press a key...") ;
    getch() ;
}
//********************
void load ()
{
    struct address *info , *temp = NULL;
    FILE *fp ;
    fp = fopen("l.dat","rb") ;
    if(fp == NULL)  {
 printf("\n cannot open file.");
 getch();
 exit(1) ;
    }
    while(start) {
      info = start -> next ;
      free(info) ;
      start = info ;
    }
    gotoxy(20,20) ;
    printf(" << loading file  >> ") ;
    start = NULL ;
    while (!feof(fp)) {
   info = (struct address *)
  malloc(sizeof(struct address)) ;
   if(1 != fread(info, sizeof(struct address), 1, fp))
     break ;
   if(start == NULL)  {
       temp = start = info ;
       info -> prior = NULL ;
       info -> next = NULL ;
   }//end of if
   else  {
       info -> next = NULL ;
       temp -> next = info ;
       info -> prior = temp ;
       temp = info;
   }
    }//end of while
    last = temp ;
    fclose(fp) ;
    gotoxy(15,22) ;
    printf("file successfuly loaded press a key ...") ;
    getch(); 

}

[آبجی]

رسم خط

#include <graphics.h>
#include<dos.h>
#include<iostream.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include<math.h>
int main(void)
{
 clrscr();
 int m,n,x,y,xa,xb,ya,yb,color,dx,dy;
  cout<<"Enter (xa,ya) And (xb,yb):\n";
  cin>>xa>>ya>>xb>>yb>>color;
  xa=abs(xa);
  ya=abs(ya);
  xb=abs(xb);
  yb=abs(yb);
  if(xa<xb)
   {
    x=xa;
    y=ya;
   }
  else
   {
    x=xb;
    y=yb;
   }
  m=(yb-ya)/(xb-xa);
  if(m<1)
   {
    dx=1;
    dy=m;
    n=abs(xb-xa);
   }
   else
   {
    dy=1;
    dx=1/m;
    n=abs(yb-ya);
   }
  int gdriver = DETECT, gmode, errorcode;
  initgraph(&gdriver, &gmode, "");
  errorcode = graphresult();
  if (errorcode != grOk)
   {
      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to halt:");
      getch();
      exit(1);
   }
 for(int i=0;i<n;i++)
  {
   putpixel(int(x),int(y),color);
   x+=dx;
   y+=dy;
  }
 getch();
 closegraph();
 return 0; 

[آبجی]

دفتر تلفن ساده با کلاس ها

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>

//=====================================
//=====================================
struct address {
       char name[30] ;
       char street[30] ;
       char city[20] ;
       char state[3] ;
       char number[14] ;
       struct address *next ;
       struct address *prior ;
} list_entry ;
//=====================================
//=====================================
struct address *start ;
struct address *last ;

void enter() , display() , search() ;
void list() , del();
void display(struct address *info, int *row);

struct address *find(char *);
int menu_select();
struct address *store(struct address *, struct address *);
//=====================================
//=====================================




//****************

int menu_select()
{
      char s[5];
      system("cls");
      gotoxy(25,4) ;
      printf("1. enter a name ") ;
      gotoxy(25,6) ;
      printf("2. delete a name ") ;
      gotoxy(25, 8) ;
      printf("3. list all files ") ;
      gotoxy(25, 10) ;
      printf("4. search ") ;
      gotoxy(25, 12) ;
      printf("5. quit ") ;
      do {
      gotoxy(20, 18) ;
      printf("enter your select--power By majid (1-5):");
      gets(s);
      } while (atoi(s) < 0 || atoi(s) > 5) ;
      return atoi(s) ;
}
//*********************


void enter ()
{
   struct address *info ;
   int i ;
   char ch ;
   system("cls") ;
   gotoxy(3, 2) ;
   printf("   name        street     city     state    number");
   gotoxy(3, 3) ;
   printf(" ------------ -------- ");
   printf("--------   -----  ------- ");
   i = 4 ;
   for (;;) {
     info = (struct address *)malloc(sizeof(list_entry)) ;
     if(!info) {
    printf("\n out of memory. press a key ") ;
    getch();
    return ;
     }
     gotoxy(3, i) ;
     gets(info -> name) ;
     if (!info -> name[0]) {
      gotoxy(15, i + 1) ;
      printf("press a key to continue");
      getch() ;
      break ;
     }//end of if
     gotoxy(18, i);
     gets(info -> street) ;
     gotoxy(28, i) ;
     gets(info -> city) ;
     gotoxy(38, i) ;
     gets(info -> state) ;
     gotoxy(45, i) ;
     gets(info -> number) ;
     i++ ;
     start = store(info, start) ;
     } /* entry loop */
    }
//**************


struct address *store(struct address *i, struct address *top)
{
   struct address *old, *p ;
   if(last == NULL) {
    i -> next = NULL ;
    i -> prior = NULL ;
    start = i;
    last = i ;
    return i ;
   }
   p = top ;
   old = NULL ;
   while (p != NULL) {
       if(strcmp(p -> name, i -> name) < 0) {
          old = p ;
          p = p -> next ;
       }//end of if
       else {
         if (p -> prior) {
          p -> prior -> next=i ;
          i -> next=p ;
          i -> prior=p -> prior;
          p -> prior=i ;
          return top ;
         }//end of if
         i -> next = p ;
         i -> prior = NULL ;
         p -> prior = i ;
         return i ;
       }//end of if
   } // end of while
   old -> next = i ;
   i -> next = NULL ;
   i -> prior = old ;
   last = i ;
   return start ;
}
//******************


void del()
{
   struct address *info;
   char name[80];
   gotoxy(20, 20) ;
   printf(" enter name for delete : ") ;
   gets(name) ;
   info = find(name) ;
   if(info == NULL) {
       gotoxy(10, 20) ;
       printf(" name not found! press a key to continue.");
       getch() ;
   }
   if (info)
     if (start == info)
    {
      start = info -> next ;
      if(start)
         start -> prior = NULL ;
      else
         last = NULL ;
    } //end of if
     else  {
       info -> prior -> next = info -> next;
       if(info != last)
         info -> next -> prior = info -> prior;
       else
        last = info -> prior ;
     } //end of else
     free(info) ;
     gotoxy(10,20) ;
     printf("name deleted, press a key to continue.");
     getch() ;
}
//*******************************


struct address *find(char *name)
{
     struct address *info ;
     info = start ;
     while(info != NULL) {
    if (strcmp(name, info -> name) == 0)
       return info;
    info = info -> next ;
     }
     return NULL ;
}
//*****************


void list ()
{
    struct address *info ;
    int i ;
    info = start ;
    system("cls") ;
    gotoxy(3, 2) ;
    printf("   name        street     city     state    number");
    gotoxy(3, 3) ;
    printf(" ------------ --------  -");
    printf("-------   -----  ------- ");
    i = 4 ;
    while(info != NULL) {
    display(info, &i) ;
    info = info -> next ;
    }
    gotoxy(15, i + 2) ;
    printf("press a key to continue.");
    getch() ;
}
//*******************


void display(struct address *info, int *row)
{
      gotoxy(3, *row) ;
      printf("%s", info -> name) ;
      gotoxy(18, *row) ;
      printf("%s", info -> street) ;
      gotoxy(28, *row) ;
      printf("%s", info -> city) ;
      gotoxy(38, *row) ;
      printf(info -> state) ;
      gotoxy(47, *row) ;
      printf(info -> number) ;
      *row = *row + 1 ;
}
//**************************


void search()
{
     char name[40] ;
     int i ;
     struct address *info;
     gotoxy(20, 20) ;
     printf(" enter name to find : ");
     gets(name) ;
     info = find(name) ;
     if(info == NULL) {
      gotoxy(10, 20) ;
      printf(" name not found! press a key to continue.");
      getch() ;
     }//end of if
     else  {
          system("cls") ;
          gotoxy(3, 2) ;
          printf("   name        street   city     state   number");
          gotoxy(3, 3) ;
          printf(" ------------ -------");
          printf("-  --------   -----  ------- ") ;
          i = 4 ;
          display(info ,&i) ;
          gotoxy(15, i + 2) ;
          printf("press a key to continue.");
          getch() ;
     }//end of else
}
//*********************

int main()
{
       start = last = NULL ;
       for(;;) {
         switch(menu_select()) {
           case 1:  enter();  break ;
           case 2 : del();    break ;
            case 3:  list() ;  break ;
           case 4:  search(); break ;
           case 5:  exit(0) ;

        }//end of switch
       }//end of for
}//end of main 

[بانوثریا]

آبجی به نظرت بچه ها با این کارشون تنبل نمیشن؟؟؟

[آبجی]

کتابخانه با امکان ورود - ویرایش- حذف -به امانت گرفتن و پس دادن کتاب

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>

//===========================
//===========================
class book
{
 friend class library;

 private:
    char book_name[11];
    char explain[51];
    char aouther[11];
    char part;

    char user[11];    
     int reserved;

    book *next;

 public:
         book();
    void edit();
    void reserv();
    void getback();
}
//---------------------------
     book::book()
    {
     clrscr();

     cout<<"============ add a new book =================="
         <<"\n\nto insert new book ,enter flow informations:"
         <<"\n\nbook name?";
     gets(book_name);
     book_name[10]=NULL;

     cout<<"\naouther name?";
     gets(aouther);
     aouther[10]=NULL;

     cout<<"\nany explain?";
     gets(explain);
     explain[50]=NULL;

     part=book_name[0];

     reserved=0;

     next=NULL;

     cout<<"\n\ninformathions set!";
     getch();
    }
//---------------------------
void book::edit()
    {
cout<<"error ";
    }
//---------------------------
void book::reserv()
    {
     clrscr();
     cout<<"\n=========== reserving book ===================";

     if(reserved==0)
        {
         cout<<"\n\nuser name?";
         gets(user);
         user[11]=NULL;

         reserved=1;
        }

     if(reserved==0)
        {
         cout<<"\n\nsorry! book has been reserved befor"
             <<"by user:";
         puts(user);
        }

     getch();
    }
//---------------------------
void book::getback()
    {
     reserved=0;

     cout<<"\n\nbook got bak.";
     getch();
    }
//===========================
//===========================
class library
{
 public:
          library();
     void run_menu();

 private:
     book *parts[24];
     void insert(book*);
     void find();
     void search();

}
//---------------------------
     library::library()
    {
     for(int i=0;i<=23;i++)
        parts[i]=NULL;

    }
//---------------------------
void library::run_menu()
    {

     char ch='n';

     while(ch!='4')
        {
         clrscr();

         cout<<"================= LIBRARY =================="
             <<"\n\n1:add a new book."
             <<"\n2:find a book."
             <<"\n3:search a book."
             <<"\n4:exit."
             <<"press numbers:";


         ch=getch();


         if(ch=='1')
            {
             book *n=new book;
             insert(n);
            }
         if(ch=='2')
            {
             find();
            }
         if(ch=='3')
            {
             search();
            }

        }//while
    }
//---------------------------
void library::insert(book *s)
    {
     int d=s->part-97;

     if(parts[d]==NULL)
        {
         parts[d]=s;
        }
     else
        {
         book *p=parts[d],*q;
         while(p!=NULL && strcmp(p->book_name,s->book_name)<0)
            {
             q=p;
             p=p->next;
            }
         q->next=s;
         s->next=p;
        }

    }
//---------------------------
void library::find()
    {
     clrscr();

     cout<<"=========== edit / delete books ============"
         <<"\nenter exact book name:";
     char name[11];
     gets(name);
     name[11]=NULL;
     int d=name[0]-97;

     book *p=parts[d],*q;
     while(p!=NULL && strcmp(p->book_name,name)!=0)
        {
         q=p;
         p=p->next;
        }
     if(p==NULL)
        {
         cout<<"not found!";
        }
     if(p!=NULL)
        {
         cout<<"\n\ndelete it?('d')  or edit?('e')"
             <<"  or reserv?('r')   or getback?('g') :";
         char ch=getch();
         if(ch=='d')
             {
              q->next=p->next;
              delete p;
             }
         if(ch=='e')
             {
              p->edit();
             }
         if(ch=='r')
             {
              p->reserv();
             }
         if(ch=='g')
            {
             p->getback();
            }
        }
     getch();
    }
//---------------------------
void library::search()
    {
     char ch='6';

     while(ch!='4')
        {
         clrscr();
         cout<<"================== SEARCH ===================";
         cout<<"\n\n1:search for name."
             <<"\n2:search for aouther."
             <<"\n3:search for explanations."
             <<"\n4:back to main menu.(press numbers)";

         ch=getch();

         if(ch=='1')
            {
             cout<<"\n\nenter exact name:";
             char name[10];
             gets(name);
             name[11]=NULL;

             int d=name[0]-97;
             book *p=parts[d];
             while(p!=NULL && strcmp(p->book_name,name)!=0)
                {
                 p=p->next;
                }
             if(p==NULL)
                {
                 cout<<"\nnot founded!";
                }
             else
                {
                 cout<<"\n\n";
                 cout<<"name:";puts(p->book_name);
                 cout<<"aouther:";puts(p->aouther);
                 cout<<"explain:";puts(p->explain);
                 if(p->reserved==1)
                    {
                     cout<<"RESERVED by:";
                     puts(p->user);
                    }
                 else
                    {
                     cout<<"NOT RESERVES";
                    }
                }//else
             getch();
            }//1
         if(ch=='2')
            {
             cout<<"\n\nenter exact aouther name:";
             char name[11];
             gets(name);
             name[11]=NULL;
             int f=0;

             for(int i=0;i<=23;i++)
               {
                book *p=parts[i];
                while(p!=NULL)
                {
                 if(strcmp(p->aouther,name)==0)
                    {
                     f++;
                     cout<<"\n"<<f<<":";
                     cout<<"name:";puts(p->book_name);
                     cout<<"aouthor:";puts(p->aouther);
                     cout<<"explain:";puts(p->explain);
                     if(p->reserved==1)
                        {
                         cout<<"RESERVED BY";
                         puts(p->user);
                        }
                     else
                        {
                         cout<<"NOT RESERVED";
                        }
                    }

                 p=p->next;
                }//while
               }
             getch();
            }//2
         if(ch=='3')
            {
             cout<<"\n\nenter key(15char):";
             char name[16];
             gets(name);
             name[15]=NULL;
             int f=0;

             for(int i=0;i<=23;i++)
               {
                book *p=parts[i];
                while(p!=NULL)
                {
                 char *tokenptr;
                 tokenptr=strtok(p->explain," ");
                 while(tokenptr!=NULL)
                    {
                     if(strcmp(tokenptr,name)==0)
                        {
                         f++;

                         cout<<"\n"<<f<<":";
                         cout<<"name:";puts(p->book_name);
                         cout<<"aouthor:";puts(p->aouther);
                         cout<<"explain:";puts(p->explain);
                         if(p->reserved==1)
                             {
                              cout<<"RESERVED BY";
                              puts(p->user);
                             }
                         else
                             {
                              cout<<"NOT RESERVED";
                             }
                        }
                     tokenptr=strtok(NULL," ");
                    }

                 p=p->next;
                }//while
               }//for i
             getch();
            }//3

        }

    }
//===========================
//===========================
 int main()
    {
     clrscr();

     library l1;
     l1.run_menu();

     return(0);
    } 

[آبجی]

تغییر رنگ نوشته متن :

کامپایلر : Borland C++‎ 5.02
روش اول :

#include <iostream>
#include <conio>
int main(){
for(int i=1;i<=4;i++){
textcolor(i+8);
cprintf("Welcome to C++‎ World");
cout<<endl;}
getch();
} 

روش دوم :

#include <iostream>
#include <conio>
#include <stdlib>
int main(){
for(int i=1;i<=4;i++){
system("color 0A");
cout<<"Welcome to C++‎ World\n";
}
getch();
} 

[آبجی]

خب این هم برنامه ای که با روش بازگشتی عددی از مبنای 10 رو به هر مبنای تبدیل میکنه :

#include <iostream>
#include <conio>
void Base(int n,int x){
 if(n<x)
   cout<<n;
   else{
    Base(n/x,x);
     cout<<n%x;
     }
}
//=====================
int main(){
int x,n;
cout<<"Enter a number in decimal :\n";
cin>>n;
cout<<"Enter base :\n";
cin>>x;
cout<<"------------------------\n";
Base(n,x);
getch(); 

}

[آبجی]

این همبرنامه ای برای پیدا کردن فاکتوریل یک عدد بروش برنامه نویسی پویا

#include <iostream>
#include <conio>
int main(){
int n;
cout<<"Enter a number :\n";
cin>>n;
int *a = new int[n+1];
a[0] = 1;
for(int i=1;i<=n;i++)
 a[i] = i*a[i-1];
 for(int i=0;i<=n;i++)
  cout<<i<<"! = "<<a[i]<<endl;
  getch();
  }