#include<stdio.h>
//Onur Kılıç
#include<conio.h>
//108538
#include<string.h>
//Computer Eng.
char yigin[100];
int top=-1;
char cikart();
void ekle(char temp);
void infix_to_postfix(char infix[],char postfix[]);
int isaret_onceligi(char isaret);
int isaret_kontrol(char isaret);
char infix[50],postfix[50];
void main(){
int i,isaret,j=0;
printf("!!Comp217 Proje
odevidir!!\n****************************\n\n");
printf("Ogrenci Bilgileri:\n\nisim:Onur Kilic
No:108538
\nDept:Computer
Engineering\n****************************\n\n");
printf("infix ifadeyi giriniz:\n");
scanf("%s",&infix);
yigin[++top]='#';
for(i=0;i<strlen(infix);i++)
{
isaret=infix[i];
if(isaret_kontrol(isaret)==0)
{
postfix[j]=isaret;
j++;
}
else{
if(isaret=='(')ekle(isaret);
else if(isaret==')')
{
while(yigin[top]!='(')
{
postfix[j]=cikart();
j++;
}
cikart();
}
else{
if(isaret_onceligi(isaret)>isaret_onceligi(yigin[top]))
ekle(isaret);
else{
while(isaret_onceligi(isaret)<=isaret_onceligi(yigin[top]))
{
postfix[j]=cikart();
j++;
}
ekle(isaret);
}
}
}
}
while(yigin[top]!='#')
{
postfix[j]=cikart();
j++;
}
postfix[j]='\0';
printf("Postfix ifade:\n");
puts(postfix);
getch();
}
int isaret_onceligi(char isaret)
{
if(isaret=='+'||isaret=='-')
return 2;
else if(isaret=='*'||isaret=='/')
return 4;
else if(isaret=='$')
return 6;
else if(isaret=='('||isaret==')'||isaret=='#')
return 1;
else
return 0;
}
int isaret_kontrol(char işaret)
{
if(isaret=='+'||isaret==''||isaret=='*'||isaret=='/'||isaret=='$'||isaret=='('||isaret
==')')
return 1;
else
return 0;
}
void ekle(char temp)
{
top++;
yigin[top]=temp;
}
char cikart()
{
char a;
a=yigin[top];
top--;
return a;
}

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Algoritma Programlama Uygulamaları