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| #include <stdio.h>
//#include <cstdlib.h>
#include <stdlib.h>
#include <iostream>
#include <conio.h>
#include <string.h>
#include <locale.h>
using namespace std;
int Analising(char*, double*, int);
void Revert(char*);
void Check(double*, int);
void Revert2(char*);
int main(int argc, char *argv[])
{
setlocale(LC_ALL,"RUS");
int length=64,stackRoof=0,strLen,a=0;
char origin[length],str[length];
double stack[length];
gets(str);
//Revert(str); // функция в которой я пытался что то сделать и перевернуть
//Revert2(str); //рабочая // без реверта работает прямая запись ! включаем реверт работает обратная но мальца криво
for (int i=0;i<length;i++)
stack[i]=0;
strLen=strlen(str);
if(Analising(str, stack, strLen)==1)
{
system("PAUSE");
return EXIT_SUCCESS;
}
cout<<stack[0]<<endl;
system("PAUSE");
return EXIT_SUCCESS;
}
void Revert2(char* str) //РАБОЧАЯ ФУНЦИЯ НО ПЕРЕВОРАЧИВАЕТ НЕ ВЕРНО
{
int length=strlen(str);
for(int i=0;i<length/2;i++)
{
char buf;
buf=str[i];
str[i]=str[length-1-i];
str[length-1-i]=buf;
}
}
//Reverting string
void Revert(char* str)
{
int a=10,i=0,i1=0,i2=0,i3=0;
cout<<str<<"=1";
char stack1[1],stack2[1];
int stack3[1];
int length=strlen(str);
char st;
/* for(int i=0;i<length/2;i++)//Just revert
{
char buf;
buf=str[i];
str[i]=str[length-1-i];
str[length-1-i]=buf;
}
*/
cout<<length<<endl;
cout<<str<<"=2"<<endl;
while (str[i]!= '\0' )
{
st=str[i];
/*cout<<"~~4444~~~~~~~~~2"<<endl;
cout<<st<<" =777777"<<endl;
cout<<str<<i<<endl;*/
switch(st)
{
case ' ':
case '+':
//If symbol is space, nuber is ended
if (st=='+' || st=='-' || st=='*' || st=='/' || st=='%' ||st ==' ')
{
stack1[i1]=st;
i1++;
stack3[i3]=0;
i3++; //НУЛИ ЭТО ЗАПИСЬ знак операц
}
break;
case '0': //if symbol is number...
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': stack2[i2]=st; i2++; stack3[i3]=1; i3++; break;
}
/* cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2"<<endl;
cout<<stack1<<" =stack1"<<endl;
cout<<stack2<<" =stack2"<<endl;
cout<<stack3<<" =stack3"<<endl;
cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~2"<<endl;*/
i++;
}
i=0;
/*cout<<stack1<<" =stack1"<<endl;
cout<<stack2<<" =stack2"<<endl;
cout<<stack3<<" =stack3"<<endl;*/
while(i3>=0)
{
if(stack3[i3]=1)
str[i]=stack2[i2];i2--;i++;
if(stack3[i3]=0)
str[i]=stack1[i1];i1--;i++;
}
//cout<<str<<"=6662"<<endl;
}
//Calculating
int Analising(char* str, double* stack, int length)
{
int forCheck=0;
int stackRoof=0;
bool isReal=true;
for (int i=0; i<length && str[i]!='\0'; i++)
{
double exp=0.1;
switch(str[i])
{
case ' ':
stackRoof++;
forCheck++;
if (str[i-1]=='+' || str[i-1]=='-' || str[i-1]=='*' || str[i-1]=='/' || str[i-1]=='%' || str[i-1]==' ')
{
stackRoof--;
forCheck--;
}
isReal=true;
exp=0.1;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
if (isReal)
stack[stackRoof]=stack[stackRoof]*10+(int)(str[i]-'0');
else
{
double tms=((int)(str[i]-'0'))*exp;
stack[stackRoof]=stack[stackRoof]+tms;
exp*=0.1;
}
break;
case '.':
case ',':
isReal=false;
break;
case '+':
stack[stackRoof-2]+=stack[stackRoof-1];
stackRoof--;
stack[stackRoof]=0;
break;
case '-':
stack[stackRoof-2]-=stack[stackRoof-1];
stackRoof--;
stack[stackRoof]=0;
break;
case '*':
stack[stackRoof-2]*=stack[stackRoof-1];
stackRoof--;
stack[stackRoof]=0;
break;
case '/':
stack[stackRoof-2]/=stack[stackRoof-1];
stackRoof--;
stack[stackRoof]=0;
break;
case '%':
int first, second;
double try1,try2;
try1=stack[stackRoof-2]-(int)stack[stackRoof-2];
try2=stack[stackRoof-1]-(int)stack[stackRoof-1];
if (try1 > 0 || try2 > 0)
{
cout<<" _ERROR_2_ Can't use operation. "<<endl;
return 1;
}
first=(int)stack[stackRoof-2];
second=(int)stack[stackRoof-1];
first%=second;
stack[stackRoof-2]=first;
stackRoof--;
break;
default:
cout<<" _ERROR_1_ Unnormal symbol. "<<endl;
return 1;
}
}
if(stackRoof<=0)
{
cout<<" _ERROR_3_ Unnormal count of operations. "<<endl;
return 1;
}
return 0;
}
void Check(double* stack, int length)
{
for (int i=0;i<=length;i++)
cout<<i<<")"<<stack[i]<<" ";
cout<<endl;
} |
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