C++ Örnek Kodlar

[aLayıNaiSyaN]

Sistem saatini simge ile güncel olarak ekrana yazdıran bir program

PHP- Kodu:

#include <iostream.h>
#include <dos.h>
#include <conio.h>
 
int sayilar[10][5][8]=     {  {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,1,0,0,0},
                              {0,0,1,0,1,0,0,0},
                              {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                                    {    {0,0,0,1,0,0,0,0},
                                        {0,0,1,1,0,0,0,0},
                              {0,0,0,1,0,0,0,0},
                              {0,0,0,1,0,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,0,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0},
                              {0,0,1,0,0,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,0,0,1,0,0,0},
                              {0,0,0,1,1,0,0,0},
                              {0,0,0,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,0,0,1,0,0,0},
                                        {0,0,0,1,1,0,0,0},
                              {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,1,0,0},
                              {0,0,0,0,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,0,0,0,0},
                              {0,0,1,1,1,0,0,0},
                              {0,0,0,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,0,0,0,0},
                              {0,0,1,1,1,0,0,0},
                              {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,1,0,0,0},
                              {0,0,0,0,1,0,0,0},
                              {0,0,0,0,1,0,0,0},
                              {0,0,0,0,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0},
                              {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    },
                           {    {0,0,1,1,1,0,0,0},
                                        {0,0,1,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0},
                              {0,0,0,0,1,0,0,0},
                              {0,0,1,1,1,0,0,0}
                                    }
                        };
 
int simge [3][1] =    {  {1},
                        {0},
                        {1}
                            };
void simgeKoy(int x,int y)
{
     for (int i =0;i<3;i++)
   {
        for (int k =0;k<1;k++)
      {
           if (simge[i][k] == 1)
         {
            gotoxy(x+k,y+i);
              cout<<(char)219;
         }
      }
   }
}
 
void cerceve (int x1,int y1,int x2,int y2)
{
    for (int i = x1;i<=x2;i++)
   {
        gotoxy(i,y1);cout<<"*";
      gotoxy(i,y2);cout<<"*";
   }
 
   for (int i = y1;i<=y2;i++)
   {
        gotoxy(x1,i);cout<<"*";
      gotoxy(x2,i);cout<<"*";
   }
}
 
int main ()
{
   struct time zaman;
   int bSaat,kSaat,bDakika,kDakika,bSaniye,kSaniye;
 
    do
   {
        gettime(&zaman);
 
      bSaat = zaman.ti_hour/10;
      kSaat = zaman.ti_hour%10;
      bDakika = zaman.ti_min/10;
      kDakika = zaman.ti_min%10;
      bSaniye = zaman.ti_sec/10;
        kSaniye = zaman.ti_sec %10;
 
      //saat
        for (int i=0;i<5;i++)
      {
            for (int k =0;k<9;k++)
            {
                if (sayilar[bSaat][i][k] == 1)
              {
                   gotoxy(k+10,i+10);
                  cout<<(char)219;
               }
            if (sayilar[kSaat][i][k] == 1)
              {
                   gotoxy(k+14,i+10);
                  cout<<(char)219;
               }
            }
      }
      simgeKoy(20,11);
 
      //dakika
      for (int i=0;i<5;i++)
      {
            for (int k =0;k<9;k++)
            {
                if (sayilar[bDakika][i][k] == 1)
              {
                   gotoxy(k+20,i+10);
                  cout<<(char)219;
               }
            if (sayilar[kDakika][i][k] == 1)
              {
                   gotoxy(k+24,i+10);
                  cout<<(char)219;
               }
            }
      }
      simgeKoy(30,11);
 
      //saniye
      for (int i=0;i<5;i++)
      {
            for (int k =0;k<9;k++)
            {
                if (sayilar[bSaniye][i][k] == 1)
              {
                   gotoxy(k+30,i+10);
                  cout<<(char)219;
               }
            if (sayilar[kSaniye][i][k] == 1)
              {
                   gotoxy(k+34,i+10);
                  cout<<(char)219;
               }
            }
      }
 
      cerceve (8,8,42,16);
      clrscr();
   }while(true);
 
   getch();
} 


[aLayıNaiSyaN]

dos ortamında üçgen çizme programı

PHP- Kodu:

#include<iostream>
#include<math.h>
#include<conio.h>
using namespace std;
int main()
{
    int i,l,k;  
    cout<<"kenar sayisi :";
    cin>>l;
    l=l+1;
    for(i=0;i<l;i++)   //dikey sayaç
    { 
     cout.width(l-i);
    for(k=0;k<2*i-1;k++)  //yatay sayaç
    {
      cout<<"*";
 
    }
    cout<<endl;
    }
    getch();
 
    return 0;
} 


[aLayıNaiSyaN]

klavyeden girilen sayının 2 nin üssü olup olmadığını kontrol eden program

PHP- Kodu:

#include<iostream>
#include<math.h>
#include<conio.h>
using namespace std;
int main()
{
    int a,i;
    cout<<"sayiyi giriniz: ";
    cin>>a;
    if(a<2) {
            cout<<"2 veya daha buyuk bir sayi giriniz\n";
            return main();
            }
    for(i=0;i<a;i++) if(a==pow(2,i)) {
                     cout<<"sayi 2 nin katidir.\n";
                     getch();
                     return 0;
                     }
 
    for(i=0;i<a;i++)  if(a!=pow(2,i)) {
                      cout<<"sayi 2 nin kati degildir.\n";
                      getch();
                      return 0;
                      }
    getch();
 
    return 0;
} 


[aLayıNaiSyaN]

linked list oluşturma örneği...

PHP- Kodu:

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define N 5
struct Node{
       int say;
       struct Node *next;
};
int main()
{
    int a,b=0;
    struct Node *hp=NULL, *tmp,*t2;
 
    hp=(struct Node *)malloc(sizeof(struct Node));
    if(hp==NULL)
      return 0;//hafıza doluysa programı sonlandır
    t2=hp;
    (t2->say)=b;
    b++;
    for(a=0;a<N;a++){//liste oluşturma
       tmp=(struct Node *)malloc(sizeof(struct Node));
       if(tmp==NULL)
           return 0;//hafıza doluysa programı sonlandır.
       (t2->next)=tmp;
       (tmp->say)=b;
       (tmp->next)=NULL;
        b++;
        t2=tmp;  
    }  
    tmp=hp;
    for(a=0;(tmp->next)!=NULL;a++){//listeyi ekrana yazma
       printf("%d-",tmp->say);
       tmp=(tmp->next);
    }   
   getch();
   return 0;
} 


[aLayıNaiSyaN]

varolan bir bağlı listeden bir elemanı ( o listede varsa) silen program.örnek listedeki elemanlar 0-1-2-3-4-5-6-7-8-9

Kod:

PHP- Kodu:

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define N 10
struct Node{
       int say;
       struct Node *next;
};
typedef struct Node dugum;
int eleman_sil(int n, dugum **headptr);
int main()
{
    int a,b=0,c,sil;
    dugum *hp=NULL, *tmp,*t2;
 
    hp=(struct Node *)malloc(sizeof(struct Node));
    if(hp==NULL)
      return 0;//hafıza doluysa programı sonlandır
    t2=hp;
    (t2->say)=b;
    b++;
    for(a=0;a<N;a++){//liste oluşturma
       tmp=(struct Node *)malloc(sizeof(struct Node));
       if(tmp==NULL)
           return 0;//hafıza doluysa programı sonlandır.
       (t2->next)=tmp;
       (tmp->say)=b;
       (tmp->next)=NULL;
        b++;
        t2=tmp;  
    }
    do{
    system("cls");
    printf("hangi rakamı silmek istersiniz?...");
    scanf("%d",&sil);
    c=eleman_sil(sil,&hp);    
    }while(c!=0);
    tmp=hp;
    for(a=0;(tmp->next)!=NULL;a++){//listeyi ekrana yazma
       printf("%d-",tmp->say);
       tmp=(tmp->next);
    }   
   getch();
   return 0;
}
int eleman_sil(int n, dugum **headptr)
{
    int a,sayac=0,c,d=0;
    dugum *ppp,*temp,*del;
    ppp=*headptr;  
    for(a=0;ppp->next!=NULL;a++){
       if(ppp->say==n){             
          d=1;
          break;     
       }
       temp=ppp;
       ppp=ppp->next;   
    }
    if(d==0)
       return -1;
    if(a==0){
       del=*headptr;
       *headptr=(*headptr)->next;
       free(del);
    }
    else{
         if(ppp->next==NULL){
            temp->next=NULL;
         }
         else{
            temp->next=ppp->next;       
         }
         free(ppp);
    }
    return 0; 
} 


[aLayıNaiSyaN]

varolan bir listeden, istenen sıradaki elemanı silen programliste 10 elemanlıdır.

PHP- Kodu:

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define N 10
struct Node{
       int say;
       struct Node *next;
};
typedef struct Node dugum;
int listeden_sil(int n, dugum **headptr);
int main()
{
    int a,b=0,c,sil;
    dugum *hp=NULL, *tmp,*t2;
 
    hp=(struct Node *)malloc(sizeof(struct Node));
    if(hp==NULL)
      return 0;//hafıza doluysa programı sonlandır
    t2=hp;
    (t2->say)=b;
    b++;
    for(a=0;a<N;a++){//liste oluşturma
       tmp=(struct Node *)malloc(sizeof(struct Node));
       if(tmp==NULL)
           return 0;//hafıza doluysa programı sonlandır.
       (t2->next)=tmp;
       (tmp->say)=b;
       (tmp->next)=NULL;
        b++;
        t2=tmp;  
    }
    do{
    system("cls");
    printf("listenin kacinci elemanini silmek istersiniz?...");
    scanf("%d",&sil);
    c=listeden_sil(sil,&hp);    
    }while(c!=0);
    tmp=hp;
    for(a=0;(tmp->next)!=NULL;a++){//listeyi ekrana yazma
       printf("%d-",tmp->say);
       tmp=(tmp->next);
    }   
   getch();
   return 0;
}
int listeden_sil(int n, dugum **headptr)
{
    int a,sayac=0,c,d;
    dugum *ppp,*temp,*del;
    ppp=*headptr;
 
    for(a=0;ppp->next!=NULL;a++)
       ppp=ppp->next;
    if(n<1||n>a)
       return -1;
    if(n==1){
       temp=*headptr;
       (*headptr)=(*headptr)->next;
       free(temp);
    }
    else{
         ppp=*headptr;
 
         for(a=0;a<n;a++){
            temp=ppp;
            ppp=ppp->next;
         }
         del=ppp;
         if(ppp->next==NULL)
            temp->next=NULL;
         else{
            temp->next=ppp->next;
         }
         free(del);
    }
    return 0;
} 


[aLayıNaiSyaN]

öğrenci takip programı

PHP- Kodu:

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <io.h>
#include <string.h>
 
struct ogrenci {
char adsoy[30];
char k;  //kontrol degiskeni
char tel[15],adres[40],sehir[15],num[10];
}ogrkay;
 
FILE *dosya;
char cev;
int i,kaysay,say;
char c,ara[10];
 
void giris()
{
clrscr();
dosya=fopen("kayit.dat","a");
printf("OGRENCI NUMARASI ...:");gets(ogrkay.num);
printf("AD VE SOYAD      ...:");gets(ogrkay.adsoy);
printf("ADRES            ...:");gets(ogrkay.adres);
printf("SEHIR            ...:");gets(ogrkay.sehir);
printf("TELEFON NUMARASI ...:");gets(ogrkay.tel);
printf("GIRILEN BİLGİLER DOGRU MU ?...  E/H");
cev=getch();
if (cev=='E'|| cev=='e') { ogrkay.k='*';
fseek(dosya,filelength(fileno(dosya)),SEEK_SET);
fwrite(&ogrkay,sizeof(struct ogrenci),1,dosya);
flushall();
}
}
 
void baslik()
{ clrscr();
printf("%-10s%-20s%-25s%-10s%-10s\n\n","NUMARA","AD SOYAD","ADRES","SEHIR","TELEFON");
say=0;
}
 
void listele()
{ baslik();
kaysay=filelength(fileno(dosya))/sizeof(struct ogrenci);
  for (i=0 ;i<kaysay;i++) {
fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
fread(&ogrkay,sizeof(struct ogrenci),1,dosya);
if (ogrkay.k=='*')  {
say=say+1;
printf("%-10s",ogrkay.num);
printf("%-20s",ogrkay.adsoy);
printf("%-25s",ogrkay.adres);
printf("%-10s",ogrkay.sehir);
printf("%-10s\n",ogrkay.tel);
if (say==20) { printf("BIR SONRAKI SAYFA ICIN BIR TUSA BASIN...");
getch(); baslik();
    }
   }
}
printf("\n\n LISTELENECEK KAYITLAR SONA ERDI...");
getch();
}
 
int arama ()
{
clrscr();
printf("ARAMAK ISTEDIGINIZ OGRENCI NUMRASI ...:");gets(ara);
flushall();
  for(i=0 ;i<kaysay;i++) {
fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
fread(&ogrkay,sizeof(struct ogrenci),1,dosya);
if (strcmp(ara,ogrkay.num)==0 && ogrkay.k=='*') {
clrscr();
printf("OGRENCI NUMARASI ...:%s\n",ogrkay.num);
printf("AD VE SOYAD       ...:%s\n",ogrkay.adsoy);
printf("ADRES             ...:%s\n",ogrkay.adres);
printf("SEHIR             ...:%s\n",ogrkay.sehir);
printf("TELEFON NUMARASI  ....:%s\n",ogrkay.tel);
printf("\nCIKIS YAPMAK ICIN LUTFEN BIR TUSA BASINIZ...");
getch(); return 0;
  }
}
printf("ARANAN KAYIT BULUNAMADI...\n");
getch();
return 0;
}
 
 
int silme (void)
{
clrscr();
printf("SILINECEK OGRECI NUMARASINI GIRIN...:");gets(ara);
  kaysay=filelength(fileno(dosya))/sizeof(struct ogrenci);
  for (i=0 ;i<kaysay;i++) {
fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
fread(&ogrkay,sizeof(struct ogrenci),1,dosya);
  if (strcmp(ara,ogrkay.num)==0 && ogrkay.k=='*') {
clrscr();
printf("OGRENCI NUMARASI ...:%s\n",ogrkay.num);
printf("AD VE SOYAD       ...:%s\n",ogrkay.adsoy);
printf("ADRES             ...:%s\n",ogrkay.adres);
printf("SEHIR             ...:%s\n",ogrkay.sehir);
printf("TELEFON NUMARASI  ...:%s\n",ogrkay.tel);
printf("\n SILME ISLEMINI GERCEKLESTIRMEK ISTIYOR MUSUNUZ?... E/H");
cev=getch();
if (cev=='E' || cev=='e'){
ogrkay.k='s';
fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
fwrite(&ogrkay,sizeof(struct ogrenci),1,dosya);
  flushall();
  printf("\n KAYIT SILME ISLEMI BASARIYLA GERÇEKLESTIRILDI  !");getch();
  return 0;
     }
    }
}
printf("SILINECEK KAYIT BULUNAMADI...\n");
getch();
return 0;
}
 
 
 
int duzelt( void)
{
clrscr();
printf("DUZELTME ISLEMI YAPILACAK OGRENCI NUMARASI...:");gets(ara);
  kaysay=filelength(fileno(dosya))/sizeof(struct ogrenci);
  for (i=0 ;i<kaysay;i++) {
fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
fread(&ogrkay,sizeof(struct ogrenci),1,dosya);
  if (strcmp(ara,ogrkay.num)==0 && ogrkay.k=='*') {
     do {
     clrscr();
     printf("1-OGRENCI NUMARASI ...:%s\n",ogrkay.num);
     printf("2-AD VE SOYAD      ...:%s\n",ogrkay.adsoy);
     printf("3-ADRES            ... :%s\n",ogrkay.adres);
     printf("4-SEHIR            ...:%s\n",ogrkay.sehir);
     printf("5-TELEFON NUMARASI ...:%s\n",ogrkay.tel);
     printf("6-KAYIT ÇIKIS      ...\n");
 
     printf("seçiminiz (1-6):");
     cev=getch();
     printf("\n");
     switch (cev) {
     case '1': printf("YENI OGRENCI NUMARASI ...:");gets(ogrkay.num);break;
     case '2': printf("YENI AD VE SOYAD      ...:");gets(ogrkay.adsoy);break;
     case '3': printf("YENI ADRES            ...:");gets(ogrkay.adres);break;
     case '4': printf("YENI SEHIR            ...:");gets(ogrkay.sehir);break;
     case '5': printf("YENI TELEFON NUMARASI ...:");gets(ogrkay.tel);break;
     }
     }while (cev!='6');
     fseek(dosya,i*sizeof(struct ogrenci),SEEK_SET);
     fwrite(&ogrkay,sizeof(struct ogrenci),1,dosya);
     flushall();
     printf("\n KAYIT DUZELTME ISLEMI BASARIYLA GERCEKLESTIRILDI !");getch();
     return 0;
     }
    }
    printf("DUZELTILECEK KAYIT BULUNAMADI...\n");
    getch();
    return 0;
    }
 
 
    void main()
    {
    dosya=fopen("OGRENCI.DAT","r+b");
    if (dosya==NULL) {
    dosya=fopen("OGRENCI.DAT","w+b");
    }
    textbackground(8);textcolor(2);
    do {
      clrscr();
      gotoxy(28,15);printf("<------------------------------->");
      gotoxy(28,17);printf("* 1-BILGI GIRISI                * ");
      gotoxy(28,19);printf("* 2-BILGI ARAMA               * ");
      gotoxy(28,21);printf("* 3-BILGI LISTELEME          * ");
      gotoxy(28,23);printf("* 4-BILGI SILME                 * ");
      gotoxy(28,25);printf("* 5-BILGI DUZELTME           * ");
      gotoxy(28,27);printf("* 6-PROGRAMI SONLANDIR * ");
      gotoxy(28,29);printf("<------------------------------->");
      gotoxy(3,50);printf("HAZIRLAYAN...:Kaan DURAN");
      gotoxy(52,50);printf("SeCiminiz......... (1-6)");
      c=getch();
      if (c=='1') giris();
      if (c=='2') arama();
      if (c=='3') listele();
      if (c=='4') silme();
      if (c=='5') duzelt();
      }while (c!='6');
      fclose(dosya);
      } 


[aLayıNaiSyaN]

basit ama caseler için verilmiş bi ödev

PHP- Kodu:

#include <cstdlib>
#include <iostream>
using namespace std;
int main()
{
    int x;
    int a,b,c;
    cin>>x;
    a=x / 100;
    b=x / 10 % 10;
    c=x % 10;
    switch(a)
    {
            case 1:  cout<<"Yuz ";break;
            case 2:  cout<<"Iki Yuz "; break;  
            case 3:  cout<<"Uc Yuz ";break;
            case 4:  cout<<"Dort Yuz "; break; 
            case 5:  cout<<"Bes Yuz ";break;
            case 6:  cout<<"Alti Yuz "; break; 
            case 7:  cout<<"Yedi Yuz ";break;
            case 8:  cout<<"Sekiz Yuz "; break;
            case 9:  cout<<"Dokuz Yuz "; break;      
    }
    switch(b)
    {
            case 0:  cout<<" ";break;
            case 1:  cout<<"On ";break;
            case 2:  cout<<"Yirmi "; break;  
            case 3:  cout<<"Otuz ";break;
            case 4:  cout<<"Kirk "; break; 
            case 5:  cout<<"Elli ";break;
            case 6:  cout<<"Altmis "; break; 
            case 7:  cout<<"Yetmis ";break;
            case 8:  cout<<"Seksen "; break;
            case 9:  cout<<"Doksan "; break;      
    }
    switch(c)
    {
            case 0:  cout<<" ";break;
            case 1:  cout<<"Bir ";break;
            case 2:  cout<<"Iki "; break;  
            case 3:  cout<<"Uc ";break;
            case 4:  cout<<"Dort "; break; 
            case 5:  cout<<"Bes ";break;
            case 6:  cout<<"Alti "; break; 
            case 7:  cout<<"Yedi ";break;
            case 8:  cout<<"Sekiz "; break;
            case 9:  cout<<"Dokuz "; break;      
    }
 
    system("PAUSE");
    return 0;
}