Some C Programs Written by Me

BaseConverter.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

void Binary(void);
void Octal(void);
void Hexadecimal(void);
void BinaryDecimal(void);
void OctalDecimal(void);
void HexaToDecimal(void);

int main(void)
{
	printf("Welcome to Base Convert Tool\n");
	int swtch;
	do
	{
	printf("\nSelect :\n1- Decimal to Binary\n2- Decimal to Octal\n3- Decimal to Hexadecimal\n4- Binary to Decimal\n5- Octal to Decimal\n6- Hexadecimal to Decimal\n7- EXIT\n=>");
	scanf("%d",&swtch);	
	switch(swtch){
		case 1:{
			Binary();
			break;
		}
		case 2:{
			Octal();
			break;
		}
		case 3:{
			Hexadecimal();
			break;
		}
		case 4:{
			BinaryDecimal();
			break;
		}
		case 5:{
			OctalDecimal();
			break;
		}
		case 6:{
			HexaToDecimal();
			break;
		}
		case 7:{
			printf("Good Bye.\n");
			system("exit");
			break;
		}
		
		default:{
			printf("Error Code 0x1\n");
		}		
	}
	}
	while(swtch !=7);
	system("pause");
	return 0;
}

void Binary(void)
{
	int x,a;
	int Bin[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; //16 karakterlik bir dizi tanımladım
	int count=0; 
	printf("Type Decimal Value to Convert Binary->"); scanf("%d",&x);
	a=x; //ilk değeri gecici "a" değerine atadım
	do //do-while kullanarak bölüm 0 olana kadar farkı dizinin gerekli hanelerine atadım.
	{
	Bin[count]=a%2;
	a=x/2;
	x=a;
	count++;
	}
	while(a!=0);
	//atarker tersten atandığı için yazdırırken düz çıkması için tersten yazdırdım.
	printf("%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n",Bin[15],Bin[14],Bin[13],Bin[12],Bin[11],Bin[10],Bin[9],Bin[8],Bin[7],Bin[6],Bin[5],Bin[4],Bin[3],Bin[2],Bin[1],Bin[0]);
	printf("Press Any key to Continue!");
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                           "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

void Octal(void)
{
	int x,a;
	int Bin[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
	int count=0;
	printf("Type Decimal Value to Convert Octal->"); scanf("%d",&x);
	a=x;
	do
	{
	Bin[count]=a%8;
	a=x/8;
	x=a;
	count++;
	}
	while(a!=0);
	printf("%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n",Bin[15],Bin[14],Bin[13],Bin[12],Bin[11],Bin[10],Bin[9],Bin[8],Bin[7],Bin[6],Bin[5],Bin[4],Bin[3],Bin[2],Bin[1],Bin[0]);
	printf("Press Any key to Continue!");
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                           "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

void Hexadecimal(void)
{
	int x,a,h;
	int Bin[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
	int count=0;
	printf("Type Decimal Value to Convert Hexadecimal->"); scanf("%d",&x);
	a=x;
	do
	{
	Bin[count]=a%16;  
	a=x/16;
	x=a;
	count++;
	}
	while(a!=0);
	int X;
	char b;
	char hexa[17]="0000000000000000";  //16 yapınca sonuna fazladan bozuk karakter basıyor!!
	for(h=0;h<=15;h++)     
	{
		X=Bin[h];
		if(X >=0 && X<=9) //arrayden stringe direkt sayı aktarımı yapamadım bende mecbur 0 için '0' yaz vs gibi kodlamak zorunda kaldım.
		{				  //normalde "hexa[h]=Bin[h];" yazdım bu araklık(0 && 9) için ama çalışmadı.
			if(X==0){  
				b='0';
				hexa[h]=b;
			}
			else if(X==1){
				b='1';
				hexa[h]=b;
			}
			else if(X==2){
				b='2';
				hexa[h]=b;
			}
			else if(X==3){
				b='3';
				hexa[h]=b;
			}
			else if(X==4){
				b='4';
				hexa[h]=b;
			}
			else if(X==5){
				b='5';
				hexa[h]=b;
			}
			else if(X==6){
				b='6';
				hexa[h]=b;
			}
			else if(X==7){
				b='7';
				hexa[h]=b;
			}
			else if(X==8){
				b='8';
				hexa[h]=b;
			}
			else if(X==9){
				b='9';
				hexa[h]=b;
			}
		}
		//9dan büyük karakterler için gerekli harflerin atanması.
		else if(X == 10){
			hexa[h]='A';
		}
		else if(X == 11){
			hexa[h]='B';
		}
		else if(X == 12){
			hexa[h]='C';
		}
		else if(X == 13){
			hexa[h]='D';
		}
		else if(X == 14){
			hexa[h]='E';
		}
		else if(X == 15){
			hexa[h]='F';
		}
	}
	printf("%c %c %c %c %c %c %c %c %c %c %c %c %c %c %c %c\n",hexa[15],hexa[14],hexa[13],hexa[12],hexa[11],hexa[10],hexa[9],hexa[8],hexa[7],hexa[6],hexa[5],hexa[4],hexa[3],hexa[2],hexa[1],hexa[0]);	
	printf("Press Any key to Continue!");
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                           "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

void BinaryDecimal(void)
{
	//int pow(x,y); = x^y.
	int Binary[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; //16 digit.
	char strBinary[17]; //for '\0'.
	int i,j,x,y=1,z,Len;
	char dummy[1];
	gets(dummy);
	printf("Type Binary Code-> ");
	gets(strBinary);
	Len = strlen(strBinary);
//	printf("%d\n",Len);
//	printf("%s\n",strBinary);
	//String to Array Converter and Char Controll.
	x=16-Len;
	for(j=0;j<Len;j++)
	{
//		printf("%c ",strBinary[j+1]);
		if(strBinary[j] != '0' && strBinary[j] != '1')
		{
			printf("Error On %-2dth digit of Array!\n",j+1);
			y=0;
		}
	}
	if(y==1)
	{
		for(j=0;j<Len;j++)
		{
			if(strBinary[j]=='1')
			{
				Binary[j+x]=1;
			}
			else if(strBinary[j]=='0')
			{
				Binary[j+x]=0;
			}
			else
			{
				Binary[j+x]=9;
			}
		}
	}
	for(i=0;i<16;i++)
	{
		printf("%d ",Binary[i]);
	}
	printf("\n");
	//CALCULATION PHASE
	int decimal=0;
	int Base=0;
	for(z=0;z<Len;z++)
	{
		Base=Binary[15-z]*pow(2,z);
//		printf("Base=%d, Z=%d\n",Base,z);  //control lines
		decimal+=Base;
	}
	
	printf("DECIMAL = %d\n",decimal);
	printf("Press Any key to Continue!");
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                           "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

void OctalDecimal(void)
{
	//int pow(x,y); = x^y.
	int Octal[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; //16 digit.
	char strOctal[17]; //for '\0'.
	int i,j,x,y=1,z,Len;
	char dummy[1];
	gets(dummy);
	printf("Type Octal Code-> ");
	gets(strOctal);
	Len = strlen(strOctal);
//	printf("%d\n",Len);
//	printf("%s\n",strBinary);
	//String to Array Converter and Char Controll.
	x=16-Len;
	for(j=0;j<Len;j++)
	{
//		printf("%c ",strBinary[j+1]);
		if(strOctal[j] != '0' && strOctal[j] != '1' && strOctal[j] != '2' && strOctal[j] != '3' && strOctal[j] != '4' && strOctal[j] != '5' && strOctal[j] != '6' && strOctal[j] != '7')
		{
			printf("Error On %-2dth digit of Array!\n",j+1);
			y=0;
		}
	}
	if(y==1)
	{
		for(j=0;j<Len;j++)
		{
			if(strOctal[j]=='0')
			{
				Octal[j+x]=0;
			}
			else if(strOctal[j]=='1')
			{
				Octal[j+x]=1;
			}
			else if(strOctal[j]=='2')
			{
				Octal[j+x]=2;
			}
			else if(strOctal[j]=='3')
			{
				Octal[j+x]=3;
			}
			else if(strOctal[j]=='4')
			{
				Octal[j+x]=4;
			}
			else if(strOctal[j]=='5')
			{
				Octal[j+x]=5;
			}
			else if(strOctal[j]=='6')
			{
				Octal[j+x]=6;
			}
			else if(strOctal[j]=='7')
			{
				Octal[j+x]=7;
			}
			else
			{
//				Octal[j+x]=9;
			}
		}
	}
	for(i=0;i<16;i++)
	{
		printf("%d ",Octal[i]);
	}
	printf("\n");
	int decimal=0;
	//CALCULATION PHASE
	int Base=0;
	for(z=0;z<Len;z++)
	{
		Base=Octal[15-z]*pow(8,z);
//		printf("Base=%d, Z=%d\n",Base,z);  //control lines
		decimal+=Base;
	}
	
	printf("DECIMAL = %d\n",decimal);
	printf("Press Any key to Continue!");
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                           "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

void HexaToDecimal(void)
{
	//int pow(x,y); = x^y.
	int Hexa[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; //16 digit.
	char strHexa[17]; //for '\0'.
	int i,j,x,y=1,z,Len;
	char dummy[1];
	gets(dummy);
	printf("Type Hexadecimal Code-> ");
	gets(strHexa);
	Len = strlen(strHexa);
//	printf("%d\n",Len);
//	printf("%s\n",strBinary);
	//String to Array Converter and Char Controll.
	x=16-Len;
	for(j=0;j<Len;j++)
	{
//		printf("%c ",strBinary[j+1]);
		if(strHexa[j] != '0' && strHexa[j] != '1' && strHexa[j] != '2' && strHexa[j] != '3' && strHexa[j] != '4' && strHexa[j] != '5' && strHexa[j] != '6' && strHexa[j] != '7' && strHexa[j] != '8' && strHexa[j] != '9' && strHexa[j] != 'A' && strHexa[j] != 'B' && strHexa[j] != 'C' && strHexa[j] != 'D' && strHexa[j] != 'E' && strHexa[j] != 'F' && strHexa[j] != 'a' && strHexa[j] != 'b' && strHexa[j] != 'c' && strHexa[j] != 'd' && strHexa[j] != 'e' && strHexa[j] != 'f')
		{
			printf("Error On %-2dth digit of Array!\n",j+1);
			y=0;
		}
	}
	if(y==1)
	{
		for(j=0;j<Len;j++)
		{
			if(strHexa[j]=='0')
			{
				Hexa[j+x]=0;
			}
			else if(strHexa[j]=='1')
			{
				Hexa[j+x]=1;
			}
			else if(strHexa[j]=='2')
			{
				Hexa[j+x]=2;
			}
			else if(strHexa[j]=='3')
			{
				Hexa[j+x]=3;
			}
			else if(strHexa[j]=='4')
			{
				Hexa[j+x]=4;
			}
			else if(strHexa[j]=='5')
			{
				Hexa[j+x]=5;
			}
			else if(strHexa[j]=='6')
			{
				Hexa[j+x]=6;
			}
			else if(strHexa[j]=='7')
			{
				Hexa[j+x]=7;
			}
			else if(strHexa[j]=='8')
			{
				Hexa[j+x]=8;
			}
			else if(strHexa[j]=='9')
			{
				Hexa[j+x]=9;
			}
			else if(strHexa[j]=='A')
			{
				Hexa[j+x]=10;
			}
			else if(strHexa[j]=='a')
			{
				Hexa[j+x]=10;
			}
			else if(strHexa[j]=='B')
			{
				Hexa[j+x]=11;
			}
			else if(strHexa[j]=='b')
			{
				Hexa[j+x]=11;
			}
			else if(strHexa[j]=='C')
			{
				Hexa[j+x]=12;
			}
			else if(strHexa[j]=='c')
			{
				Hexa[j+x]=12;
			}
			else if(strHexa[j]=='D')
			{
				Hexa[j+x]=13;
			}
			else if(strHexa[j]=='d')
			{
				Hexa[j+x]=13;
			}
			else if(strHexa[j]=='E')
			{
				Hexa[j+x]=14;
			}
			else if(strHexa[j]=='e')
			{
				Hexa[j+x]=14;
			}
			else if(strHexa[j]=='F')
			{
				Hexa[j+x]=15;
			}
			else if(strHexa[j]=='f')
			{
				Hexa[j+x]=15;
			}
			else
			{
//				x[j+x]=16;
			}
		}
	}
	for(i=0;i<16;i++)
	{
		printf("%d ",Hexa[i]);
	}
	printf("\n");
	int decimal=0;
	//CALCULATION PHASE
	int Base=0;
	for(z=0;z<Len;z++)
	{
		Base=Hexa[15-z]*pow(16,z);
//		printf("Base=%d, Z=%d\n",Base,z);  //control lines
		decimal+=Base;
	}
	printf("DECIMAL = %d\n",decimal);
	
	printf("Press Any key to Continue!"); //27 karakter
	getch();
//	printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b                          "); //Line Cleaner
	printf("\r                          "); //Line Cleaner
}

Emirp.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

int asalMi(int);

int RakamYap(char);

int main(void)
{
	FILE *Dosya=fopen("LASA.txt","w");
	int sayiA,sayiB;
	char Rakamlar[7];
	int i,j;
	for(i=11;i<=9999999;i+=2)
	{
		sayiA=0;sayiB=0;

		sprintf(Rakamlar,"%d",i);
		int LenRakam=strlen(Rakamlar);
    int Dizi[LenRakam];
		int ReverseDizi[LenRakam];
		for(j=0;j<LenRakam;j++)
		{
			Dizi[j]=RakamYap(Rakamlar[j]);
			ReverseDizi[LenRakam-1-j]=RakamYap(Rakamlar[j]);
		}
		for(j=0;j<LenRakam;j++)
		{
			sayiA+= Dizi[j]*pow(10,(LenRakam-j-1));
			sayiB+= ReverseDizi[j]*pow(10,(LenRakam-j-1));
		}
    
		if(sayiA>=10)
		{
			if(asalMi(sayiA)==1 && asalMi(sayiB)==1)
			{
				fprintf(Dosya,"%-8d Sayisi LASA sayisidir.\n",sayiA);
			}
		}
	}
	fclose(Dosya);
	return 0;
}

int RakamYap(char CharRakam)
{
	if(CharRakam=='0')
		return 0;
	else if(CharRakam=='1')
		return 1;
	else if(CharRakam=='2')
		return 2;
	else if(CharRakam=='3')
		return 3;
	else if(CharRakam=='4')
		return 4;
	else if(CharRakam=='5')
		return 5;
	else if(CharRakam=='6')
		return 6;
	else if(CharRakam=='7')
		return 7;
	else if(CharRakam=='8')
		return 8;
	else if(CharRakam=='9')
		return 9;
	else
		return 0; 
}

int asalMi(int Sayi)
{
	int i, Asal=1;
	for(i=2;i<=sqrt(Sayi);i++)
		if(Sayi%i==0)
		{
			Asal=0;
			break;
		}
	if(Sayi>=2)
		return(Asal);
	else
		return 0;
}

EulerNumber.c

#include <stdio.h>
#include <stdlib.h>

int faktoriel(int);

int main() {
	float e=1.0,f;
	int j;
	for(j=1;j<=10;j++){
		f=faktoriel(j);
		e+=(1/f);
		printf("%.16f\n",e);
	}
	system("PAUSE");
	return 0;
}
int faktoriel(int a){
	int f=1,i;
	for (i=2;i<=a;i++)
		f*=i;
	return(f);
}

Fibonacci.c

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
	int sayi; 
	int ilk = 0; 
	int ikinci = 1;
	int sonraki;
	int c;
	
	printf("Fiboncci sayi dizisinin kac terimini görmek istiyorsunuz? -> ");
	scanf("%d",&sayi);
	
	printf("Fibonacci\'nin ilk %d temirimi: \n",sayi);
	for (c=0;c<sayi+1;c++)
	{
		if(c<=1)
		{
			sonraki=c;
		}	
		else
		{
			sonraki = ilk + ikinci;
			ilk = ikinci;
			ikinci = sonraki;
		}
		if (sonraki != 0)
		{
			printf("%d\n",sonraki);
		}
	}
	return 0;
}

IsPalindrom.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// is palindrom??

int main(void)
{
	char IsPalin[100];
	char Reverse[100];
	int Len,i,Test;
	
	printf("IS PALINDROM?(it\'s NOT case sensitive)\n--> ");
	gets(IsPalin);
//	printf("%s\n",IsPalin);
	Len = strlen(IsPalin);
//	printf("%d\n",Len);
	for(i=0;i<Len;i++)
	{
//		printf("%d\n",(Len-1)-i);
		IsPalin[i]=tolower(IsPalin[i]);  //active for non case sensetive
		Reverse[(Len-1)-i]=IsPalin[i];
		Reverse[Len]='\0'; //son karakteri \0 (null-space) yapmak lazım.
	}
//	puts(Reverse);
	Test=strcmp(IsPalin,Reverse);
	if(Test == 0)
		printf("\'\'%s\'\' Is a Palindrom Word :D\n",IsPalin);
	else
		printf("\'\'%s\'\' Is NOT a Palindrom Word :(\n",IsPalin);
	system("PAUSE");
	return 0;
}

PiNumber.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

int main(int argc, char *argv[]) {
	bool hello = true;
	int i;
	double X = 0;
	for(i=1;i<99999999999;i+=2)
	{
		if(hello)
		{
			X+=(1.0/(i));
			hello = false;
		}
		else
		{
			X-=(1.0/(i));
			hello = true;
		}
	}
	double Pi = X*4.0;
	printf("%5.20f\n",Pi);
	system("pause");
	return 0;
}

PrimeNumbers.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(void)
{
	int limit,i,j,asal;
	printf("Kaca kadar olan sayilar incelenecek -> "); scanf("%d",&limit);
	int Prime=0, NonPrime=0;
	for(i=1;i<=limit;i++)
	{
		asal=1;
		for(j=2;j<=sqrt(i);j++)
		{
			if (i%j==0)
			{
				asal=0;
				break;
			}
		}
		if (asal==0)
		{
			NonPrime++;
		}
		else
		{	
			if (i >= 2)	
        printf("%d\n",i);
			Prime++;
		}	
	}	
	printf("Toplam = %d\n",Prime);
system("PAUSE");
return 0;
}