From 05c6a0a855b728630879f9cf82eface80fea737b Mon Sep 17 00:00:00 2001
From: Artem <artrussushkof@gmail.com>
Date: Sat, 22 Oct 2022 08:16:47 +0000
Subject: [PATCH 1/5] first commit

---
 homework_01/task_01/src/utils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/homework_01/task_01/src/utils.cpp b/homework_01/task_01/src/utils.cpp
index a6989bd..75a6ca9 100644
--- a/homework_01/task_01/src/utils.cpp
+++ b/homework_01/task_01/src/utils.cpp
@@ -3,5 +3,5 @@
 #include <stack>
 
 std::vector<std::string> SplitString(const std::string& data) {
-  return {};
+  return {data};
 }

From 7e91fd4f0d18357b4b686c912bd1435dc71b2d63 Mon Sep 17 00:00:00 2001
From: Artem <artrussushkof@gmail.com>
Date: Sat, 12 Nov 2022 08:26:56 +0000
Subject: [PATCH 2/5] wip

---
 homework_01/task_01/src/main.cpp  |  10 +-
 homework_01/task_01/src/utils.cpp |  41 +++++++-
 homework_01/task_02/src/main.cpp  |  30 +++++-
 homework_01/task_02/src/utils.cpp | 160 +++++++++++++++++++++++++++++-
 homework_01/task_02/src/utils.hpp |   5 +
 5 files changed, 236 insertions(+), 10 deletions(-)

diff --git a/homework_01/task_01/src/main.cpp b/homework_01/task_01/src/main.cpp
index 0b3dcb2..ff7c495 100644
--- a/homework_01/task_01/src/main.cpp
+++ b/homework_01/task_01/src/main.cpp
@@ -3,8 +3,14 @@
 #include <utils.hpp>
 
 int main() {
-  for (const auto& word : SplitString("asdas das das fgag (adasd 1fas)")) {
-    std::cout << word << "\n";
+  std::string line;
+  /*std::getline(std::cin, line);
+  for (const auto& word : SplitString(line)) {
+    std::cout << word << '\n';
+  }*/
+  line="a\na\ta a";
+    for (const auto& word : SplitString(line)) {
+    std::cout << word << '\n';
   }
   return 0;
 }
diff --git a/homework_01/task_01/src/utils.cpp b/homework_01/task_01/src/utils.cpp
index 75a6ca9..44f52b8 100644
--- a/homework_01/task_01/src/utils.cpp
+++ b/homework_01/task_01/src/utils.cpp
@@ -1,7 +1,44 @@
 #include "utils.hpp"
 
-#include <stack>
+#include <string.h>
 
+#include <iostream>
+#include <stack>
+#include <string>
+#include <vector>
+using namespace std;
 std::vector<std::string> SplitString(const std::string& data) {
-  return {data};
+  std::vector<std::string> v;
+  std::string buff = "";
+  bool flag = false;  //скобки закрыты (или их нет)
+  cout << size(data) << endl;
+  for (int i = 0; i < size(data); ++i) {
+    if (data[i] == '(') {
+      flag = true;  //скобки открыты
+    } else if (data[i] == ')') {
+      flag = false;  //скобки закрыты
+    }
+    if (((data[i] != ' ') and (data[i] != '\t')) or (flag == true)) {
+      buff += data[i];
+    }
+    cout << "Data" << i << " : " << data[i] << endl;
+    cout << "Buff: " << buff << endl;
+    if (flag == false) {
+      if ((data[i] == ' ') or (data[i] == '\t') or (i + 1 >= size(data))) {
+        if (buff != "") {
+          v.push_back(buff);
+          buff = "";
+        }
+      }
+    } else {
+      if (i + 1 >= size(data)) {
+        if (buff != "") {
+          v.push_back(buff);
+          buff = "";
+        }
+      }
+    }
+  }
+  std::cout << "Size of vector: " << v.size() << "\n";
+  return v;
 }
diff --git a/homework_01/task_02/src/main.cpp b/homework_01/task_02/src/main.cpp
index 72a6f13..39a6120 100644
--- a/homework_01/task_02/src/main.cpp
+++ b/homework_01/task_02/src/main.cpp
@@ -1,10 +1,32 @@
 #include <iostream>
-
+#include <stack>
+#include <vector>
+#include <string.h>
+#include <string>
 #include <utils.hpp>
-
+#include <regex>
+using namespace std;
 int main() {
-  std::string data;
+  /*std::string data;
   std::getline(std::cin, data);
   std::cout << Calculate(data);
-  return 0;
+  return 0;*/
+ //eherh832759328623626
+string input;
+int res;
+while(7){
+  
+  std::cout << "Vvedite, poghaluista, stroku: " << std::endl;
+  getline(cin,input);
+  if (input=="quit")
+  {
+    break;
+  }
+  cout<<Parce(input)<<endl;
+  cout<<"Double: "<<IsDouble(input)<<endl;
+  //res=SplitString(s);
+  //cout<<Calculate(input)<<endl;
+}
+return 0;
+
 }
diff --git a/homework_01/task_02/src/utils.cpp b/homework_01/task_02/src/utils.cpp
index ebc7ffc..7fbaeed 100644
--- a/homework_01/task_02/src/utils.cpp
+++ b/homework_01/task_02/src/utils.cpp
@@ -1,7 +1,163 @@
 #include "utils.hpp"
 
+#include <iostream>
 #include <stack>
+#include <vector>
+#include <string.h>
+#include <string>
+#include <regex>
+using namespace std;
 
-int Calculate(const std::string& data) {
-  return 0;
+std::vector<std::string> SplitString(const std::string& data) {
+  std::vector <std::string> v;
+  std::string buff="";
+  bool flag=false;
+  cout<<size(data)<<endl;
+  for (int i=0;i<size(data);++i)
+  {
+    if (data[i]=='(')
+    {
+      flag=true;
+    }
+    else if (data[i]==')')
+    {
+      flag=false;
+    }
+    if (((data[i]!=' ') and (data[i]!='\t')) or (flag==true))
+    {
+      buff+=data[i];
+    }
+    if (flag==false)
+    {
+      if ((data[i]==' ') or (data[i]=='\t') or (i+1>=size(data)))
+      {
+        if (buff!="")
+        {
+          v.push_back(buff);
+          buff="";
+        }
+      }
+    }
+    else 
+        {
+      if (i+1>=size(data))
+      {
+        if (buff!="")
+        {
+          v.push_back(buff);
+          buff="";
+        }
+      }
+    }
+  }
+  //std::cout << "Size of vector: "<<v.size() << "\n";
+  return v;
 }
+
+bool IsInt_bad_version(const std::string& str)
+{
+  int a=1;
+  bool flag=true;
+  if (str.empty()) flag= false;
+  for (size_t i=1;i<str.size();++i)
+{
+  if ((str[i]>='0') && (str[i]<='9'))/* if (std::isdigit(str[i]))*/a=1;
+  else flag = false;
+
+  if ((!std::isdigit(str[0])) && (str[0]!='-') && (str[0]!='+'))
+  {
+    flag = false;
+  }
+}
+return flag;
+}
+
+bool IsInt(const std::string& str)
+{
+  static std::regex r(R"([+-]?\d+)"); // проверяем число ли это в системе regular expressions (regex)
+  return std::regex_match(str,r);
+}
+
+bool IsDouble(const std::string& str)
+{
+  static std::regex r(R"([+-]?(\d*\.)?\d+([Ee][+-]?\d+)?)"); // проверяем double число ли это в системе regular expressions (regex)
+  return std::regex_match(str,r);
+}
+
+string Parce(const std::string& input) {
+  bool Int_test=IsInt(input);
+  if (Int_test) {return "true";
+    std:cout<<std::stod(input)<<std::endl;
+  }
+  else return "false";
+}
+
+int Calculate(const std::string& data)  {
+int i=0;
+int buff_int=0;
+int znak;
+int rez=0;
+vector<int> chisla;
+vector<string> r= SplitString(data);
+for (int i=0;i<r.size();++i) {
+    std::cout << r[i] << '\n';
+}
+for (i=0;i<data.size();++i)
+{
+  if ((data[i]>='0') && (data[i]<='9'))
+  {
+  
+  }
+for (i=0;i<r.size();++i)
+{
+//if((r[i]!="-") and (r[i]!="+") and (r[i]!="/") and (r[i]!="*")){
+  //chisla.push_back(stoi(r[i]));
+//}
+/*else if (r[i]=="+") {
+znak=0;
+}
+else if (r[i]=="-") {
+znak=1;
+}
+else if (r[i]=="/") {
+znak=2;
+}
+else if (r[i]=="*") {
+znak=3;
+}*/
+}
+if (!chisla.empty()) rez=chisla[0];
+else
+{
+  cout<<"Error"<<endl;
+  rez=-1;
+}
+cout<<znak<<endl;
+if (!chisla.empty()){
+for(i=1;i<chisla.size();++i)
+{
+  if (znak==0)
+  {
+    rez+=chisla[i];
+  }
+  if (znak==1)
+  {
+    rez-=chisla[i];
+  }
+  if (znak==2)
+  {
+    rez/=chisla[i];
+  }
+  if (znak==3)
+  {
+    rez*=chisla[i];
+  }
+}
+}
+return rez;
+}
+}
+
+
+
+
diff --git a/homework_01/task_02/src/utils.hpp b/homework_01/task_02/src/utils.hpp
index f1bceeb..711028c 100644
--- a/homework_01/task_02/src/utils.hpp
+++ b/homework_01/task_02/src/utils.hpp
@@ -5,3 +5,8 @@
 #include <vector>
 
 int Calculate(const std::string& data);
+std::vector<std::string> SplitString(const std::string& data);
+bool IsInt_bad_version(const std::string& str);
+bool IsInt(const std::string& str);
+bool IsDouble(const std::string& str);
+std::string Parce(const std::string& input);
\ No newline at end of file

From 05613cf2f9c204f71232023972d389d56aecd133 Mon Sep 17 00:00:00 2001
From: Artem <artrussushkof@gmail.com>
Date: Wed, 23 Nov 2022 16:12:04 +0000
Subject: [PATCH 3/5] final homework 1

---
 homework_01/task_02/src/main.cpp  |  40 ++---
 homework_01/task_02/src/utils.cpp | 279 ++++++++++++++++--------------
 2 files changed, 168 insertions(+), 151 deletions(-)

diff --git a/homework_01/task_02/src/main.cpp b/homework_01/task_02/src/main.cpp
index 39a6120..f0b65d0 100644
--- a/homework_01/task_02/src/main.cpp
+++ b/homework_01/task_02/src/main.cpp
@@ -1,32 +1,22 @@
+#include <string.h>
+
 #include <iostream>
+#include <regex>
 #include <stack>
-#include <vector>
-#include <string.h>
-#include <string>
 #include <utils.hpp>
-#include <regex>
 using namespace std;
 int main() {
-  /*std::string data;
-  std::getline(std::cin, data);
-  std::cout << Calculate(data);
-  return 0;*/
- //eherh832759328623626
-string input;
-int res;
-while(7){
-  
-  std::cout << "Vvedite, poghaluista, stroku: " << std::endl;
-  getline(cin,input);
-  if (input=="quit")
-  {
-    break;
+  string input;
+  int res;
+  cout << "REZULTAT" << Calculate("5*9-8") << endl;
+  while (7) {
+    std::cout << "Vvedite, poghaluista, stroku: " << std::endl;
+    getline(cin, input);
+    if (input == "quit") {
+      break;
+    }
+    cout << Parce(input) << endl;
+    cout << "Double: " << IsDouble(input) << endl;
   }
-  cout<<Parce(input)<<endl;
-  cout<<"Double: "<<IsDouble(input)<<endl;
-  //res=SplitString(s);
-  //cout<<Calculate(input)<<endl;
-}
-return 0;
-
+  return 0;
 }
diff --git a/homework_01/task_02/src/utils.cpp b/homework_01/task_02/src/utils.cpp
index 7fbaeed..00b524e 100644
--- a/homework_01/task_02/src/utils.cpp
+++ b/homework_01/task_02/src/utils.cpp
@@ -1,163 +1,190 @@
 #include "utils.hpp"
 
+#include <string.h>
+
 #include <iostream>
+#include <regex>
 #include <stack>
-#include <vector>
-#include <string.h>
 #include <string>
-#include <regex>
+#include <vector>
 using namespace std;
 
 std::vector<std::string> SplitString(const std::string& data) {
-  std::vector <std::string> v;
-  std::string buff="";
-  bool flag=false;
-  cout<<size(data)<<endl;
-  for (int i=0;i<size(data);++i)
-  {
-    if (data[i]=='(')
-    {
-      flag=true;
-    }
-    else if (data[i]==')')
-    {
-      flag=false;
+  std::vector<std::string> v;
+  std::string buff = "";
+  bool flag = false;
+  for (int i = 0; i < size(data); ++i) {
+    if (data[i] == '(') {
+      flag = true;
+    } else if (data[i] == ')') {
+      flag = false;
     }
-    if (((data[i]!=' ') and (data[i]!='\t')) or (flag==true))
-    {
-      buff+=data[i];
+    if (((data[i] != ' ') and (data[i] != '\t') and (data[i] != '+') and
+         (data[i] != '-') and (data[i] != '*') and (data[i] != '/')) or
+        (flag == true)) {
+      buff += data[i];
     }
-    if (flag==false)
-    {
-      if ((data[i]==' ') or (data[i]=='\t') or (i+1>=size(data)))
-      {
-        if (buff!="")
-        {
+    if (flag == false) {
+      if ((data[i] == ' ') or (data[i] == '\t') or (data[i] == '+') or
+          (data[i] == '-') or (data[i] == '*') or (data[i] == '/') or
+          (i + 1 >= size(data))) {
+        if (buff != "") {
           v.push_back(buff);
-          buff="";
+          buff = "";
+          if ((data[i] == '+') or (data[i] == '-') or (data[i] == '*') or
+              (data[i] == '/')) {
+            buff += data[i];
+            v.push_back(buff);
+            buff = "";
+          }
         }
       }
-    }
-    else 
-        {
-      if (i+1>=size(data))
-      {
-        if (buff!="")
-        {
+    } else {
+      if (i + 1 >= size(data)) {
+        if (buff != "") {
           v.push_back(buff);
-          buff="";
+          buff = "";
         }
       }
     }
   }
-  //std::cout << "Size of vector: "<<v.size() << "\n";
   return v;
 }
 
-bool IsInt_bad_version(const std::string& str)
-{
-  int a=1;
-  bool flag=true;
-  if (str.empty()) flag= false;
-  for (size_t i=1;i<str.size();++i)
-{
-  if ((str[i]>='0') && (str[i]<='9'))/* if (std::isdigit(str[i]))*/a=1;
-  else flag = false;
+bool IsInt_bad_version(const std::string& str) {
+  int a = 1;
+  bool flag = true;
+  if (str.empty()) flag = false;
+  for (size_t i = 1; i < str.size(); ++i) {
+    if ((str[i] >= '0') && (str[i] <= '9'))
+      a = 1;
+    else
+      flag = false;
 
-  if ((!std::isdigit(str[0])) && (str[0]!='-') && (str[0]!='+'))
-  {
-    flag = false;
+    if ((!std::isdigit(str[0])) && (str[0] != '-') && (str[0] != '+')) {
+      flag = false;
+    }
   }
-}
-return flag;
+  return flag;
 }
 
-bool IsInt(const std::string& str)
-{
-  static std::regex r(R"([+-]?\d+)"); // проверяем число ли это в системе regular expressions (regex)
-  return std::regex_match(str,r);
+bool IsInt(const std::string& str) {
+  static std::regex r(R"([+-]?\d+)");  // проверяем число ли это в системе
+                                       // regular expressions (regex)
+  return std::regex_match(str, r);
 }
 
-bool IsDouble(const std::string& str)
-{
-  static std::regex r(R"([+-]?(\d*\.)?\d+([Ee][+-]?\d+)?)"); // проверяем double число ли это в системе regular expressions (regex)
-  return std::regex_match(str,r);
+bool IsDouble(const std::string& str) {
+  static std::regex r(
+      R"([+-]?(\d*\.)?\d+([Ee][+-]?\d+)?)");  // проверяем double число ли это в
+                                              // системе regular expressions
+                                              // (regex)
+  return std::regex_match(str, r);
 }
 
 string Parce(const std::string& input) {
-  bool Int_test=IsInt(input);
-  if (Int_test) {return "true";
-    std:cout<<std::stod(input)<<std::endl;
-  }
-  else return "false";
+  bool Int_test = IsInt(input);
+  if (Int_test) {
+    return "true";
+  std:
+    cout << std::stod(input) << std::endl;
+  } else
+    return "false";
 }
 
-int Calculate(const std::string& data)  {
-int i=0;
-int buff_int=0;
-int znak;
-int rez=0;
-vector<int> chisla;
-vector<string> r= SplitString(data);
-for (int i=0;i<r.size();++i) {
-    std::cout << r[i] << '\n';
-}
-for (i=0;i<data.size();++i)
-{
-  if ((data[i]>='0') && (data[i]<='9'))
-  {
-  
-  }
-for (i=0;i<r.size();++i)
-{
-//if((r[i]!="-") and (r[i]!="+") and (r[i]!="/") and (r[i]!="*")){
-  //chisla.push_back(stoi(r[i]));
-//}
-/*else if (r[i]=="+") {
-znak=0;
-}
-else if (r[i]=="-") {
-znak=1;
-}
-else if (r[i]=="/") {
-znak=2;
-}
-else if (r[i]=="*") {
-znak=3;
-}*/
-}
-if (!chisla.empty()) rez=chisla[0];
-else
-{
-  cout<<"Error"<<endl;
-  rez=-1;
-}
-cout<<znak<<endl;
-if (!chisla.empty()){
-for(i=1;i<chisla.size();++i)
-{
-  if (znak==0)
-  {
-    rez+=chisla[i];
+int Calculate(const std::string& data) {
+  int i = 0;
+  int buff_int = 0;
+  std::string znak;
+  int rez = 0;
+  // std::string buff_str;
+  vector<int> chisla;
+  vector<string> r = SplitString(data);
+  for (int i = 0; i < r.size(); ++i) {
+    std::cout << i << "element: " << r[i] << '\n';
   }
-  if (znak==1)
-  {
-    rez-=chisla[i];
+  for (i = 0; i < data.size(); ++i) {
+    if ((data[i] >= '0') && (data[i] <= '9')) {
+    }
+    for (i = 0; i < r.size(); ++i) {
+      if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
+        chisla.push_back(stoi(r[i]));
+      } else {
+        znak = r[i];
+      }
+    }
+    if (!chisla.empty())
+      rez = chisla[0];
+    else {
+      cout << "Error" << endl;
+      rez = -1;
+    }
+    cout << znak << endl;
+    if (!chisla.empty()) {
+      for (i = 1; i < chisla.size(); ++i) {
+        if (znak == "+") {
+          rez += chisla[i];
+        }
+        if (znak == "-") {
+          rez -= chisla[i];
+        }
+        if (znak == "*") {
+          rez *= chisla[i];
+        }
+        if (znak == "/") {
+          rez /= chisla[i];
+        }
+      }
+    }
+    return rez;
   }
-  if (znak==2)
-  {
-    rez/=chisla[i];
+}
+
+int CalculatePrefix(const std::string& data) {
+  cout << "Not Ready" << endl;
+  int i = 0;
+  int buff_int = 0;
+  std::string znak;
+  int rez = 0;
+  // std::string buff_str;
+  vector<int> chisla;
+  vector<string> r = SplitString(data);
+  for (int i = 0; i < r.size(); ++i) {
+    std::cout << i << "element: " << r[i] << '\n';
   }
-  if (znak==3)
-  {
-    rez*=chisla[i];
+  for (i = 0; i < data.size(); ++i) {
+    if ((data[i] >= '0') && (data[i] <= '9')) {
+    }
+    for (i = 0; i < r.size(); ++i) {
+      if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
+        chisla.push_back(stoi(r[i]));
+      } else {
+        znak = r[i];
+      }
+    }
+    if (!chisla.empty())
+      rez = chisla[0];
+    else {
+      cout << "Error" << endl;
+      rez = -1;
+    }
+    cout << znak << endl;
+    if (!chisla.empty()) {
+      for (i = 1; i < chisla.size(); ++i) {
+        if (znak == "+") {
+          rez += chisla[i];
+        }
+        if (znak == "-") {
+          rez -= chisla[i];
+        }
+        if (znak == "*") {
+          rez *= chisla[i];
+        }
+        if (znak == "/") {
+          rez /= chisla[i];
+        }
+      }
+    }
+    return rez;
   }
 }
-}
-return rez;
-}
-}
-
-
-
-

From 4baf0dab367e30bc737a214de1d1dfb4d8904d2d Mon Sep 17 00:00:00 2001
From: Artem <artrussushkof@gmail.com>
Date: Wed, 23 Nov 2022 16:43:59 +0000
Subject: [PATCH 4/5] solved tasks 1 and 2

---
 homework_01/task_01/src/main.cpp  |   7 +-
 homework_01/task_01/src/utils.cpp |   8 +-
 homework_01/task_02/src/main.cpp  |  16 +---
 homework_01/task_02/src/utils.cpp | 145 +++++-------------------------
 homework_01/task_02/src/utils.hpp |   4 -
 5 files changed, 29 insertions(+), 151 deletions(-)

diff --git a/homework_01/task_01/src/main.cpp b/homework_01/task_01/src/main.cpp
index ff7c495..24c8952 100644
--- a/homework_01/task_01/src/main.cpp
+++ b/homework_01/task_01/src/main.cpp
@@ -1,16 +1,11 @@
 #include <iostream>
-
 #include <utils.hpp>
 
 int main() {
   std::string line;
-  /*std::getline(std::cin, line);
+  line = "a\na\ta a";
   for (const auto& word : SplitString(line)) {
     std::cout << word << '\n';
-  }*/
-  line="a\na\ta a";
-    for (const auto& word : SplitString(line)) {
-    std::cout << word << '\n';
   }
   return 0;
 }
diff --git a/homework_01/task_01/src/utils.cpp b/homework_01/task_01/src/utils.cpp
index 44f52b8..cd30430 100644
--- a/homework_01/task_01/src/utils.cpp
+++ b/homework_01/task_01/src/utils.cpp
@@ -11,7 +11,7 @@ std::vector<std::string> SplitString(const std::string& data) {
   std::vector<std::string> v;
   std::string buff = "";
   bool flag = false;  //скобки закрыты (или их нет)
-  cout << size(data) << endl;
+  // cout << size(data) << endl;
   for (int i = 0; i < size(data); ++i) {
     if (data[i] == '(') {
       flag = true;  //скобки открыты
@@ -21,8 +21,8 @@ std::vector<std::string> SplitString(const std::string& data) {
     if (((data[i] != ' ') and (data[i] != '\t')) or (flag == true)) {
       buff += data[i];
     }
-    cout << "Data" << i << " : " << data[i] << endl;
-    cout << "Buff: " << buff << endl;
+    // cout << "Data" << i << " : " << data[i] << endl;
+    // cout << "Buff: " << buff << endl;
     if (flag == false) {
       if ((data[i] == ' ') or (data[i] == '\t') or (i + 1 >= size(data))) {
         if (buff != "") {
@@ -39,6 +39,6 @@ std::vector<std::string> SplitString(const std::string& data) {
       }
     }
   }
-  std::cout << "Size of vector: " << v.size() << "\n";
+  // std::cout << "Size of vector: " << v.size() << "\n";
   return v;
 }
diff --git a/homework_01/task_02/src/main.cpp b/homework_01/task_02/src/main.cpp
index f0b65d0..548ee13 100644
--- a/homework_01/task_02/src/main.cpp
+++ b/homework_01/task_02/src/main.cpp
@@ -5,18 +5,4 @@
 #include <stack>
 #include <utils.hpp>
 using namespace std;
-int main() {
-  string input;
-  int res;
-  cout << "REZULTAT" << Calculate("5*9-8") << endl;
-  while (7) {
-    std::cout << "Vvedite, poghaluista, stroku: " << std::endl;
-    getline(cin, input);
-    if (input == "quit") {
-      break;
-    }
-    cout << Parce(input) << endl;
-    cout << "Double: " << IsDouble(input) << endl;
-  }
-  return 0;
-}
+int main() { return 0; }
diff --git a/homework_01/task_02/src/utils.cpp b/homework_01/task_02/src/utils.cpp
index 00b524e..c819e1a 100644
--- a/homework_01/task_02/src/utils.cpp
+++ b/homework_01/task_02/src/utils.cpp
@@ -51,140 +51,41 @@ std::vector<std::string> SplitString(const std::string& data) {
   return v;
 }
 
-bool IsInt_bad_version(const std::string& str) {
-  int a = 1;
-  bool flag = true;
-  if (str.empty()) flag = false;
-  for (size_t i = 1; i < str.size(); ++i) {
-    if ((str[i] >= '0') && (str[i] <= '9'))
-      a = 1;
-    else
-      flag = false;
-
-    if ((!std::isdigit(str[0])) && (str[0] != '-') && (str[0] != '+')) {
-      flag = false;
-    }
-  }
-  return flag;
-}
-
-bool IsInt(const std::string& str) {
-  static std::regex r(R"([+-]?\d+)");  // проверяем число ли это в системе
-                                       // regular expressions (regex)
-  return std::regex_match(str, r);
-}
-
-bool IsDouble(const std::string& str) {
-  static std::regex r(
-      R"([+-]?(\d*\.)?\d+([Ee][+-]?\d+)?)");  // проверяем double число ли это в
-                                              // системе regular expressions
-                                              // (regex)
-  return std::regex_match(str, r);
-}
-
-string Parce(const std::string& input) {
-  bool Int_test = IsInt(input);
-  if (Int_test) {
-    return "true";
-  std:
-    cout << std::stod(input) << std::endl;
-  } else
-    return "false";
-}
-
 int Calculate(const std::string& data) {
   int i = 0;
   int buff_int = 0;
   std::string znak;
   int rez = 0;
-  // std::string buff_str;
   vector<int> chisla;
   vector<string> r = SplitString(data);
-  for (int i = 0; i < r.size(); ++i) {
-    std::cout << i << "element: " << r[i] << '\n';
-  }
-  for (i = 0; i < data.size(); ++i) {
-    if ((data[i] >= '0') && (data[i] <= '9')) {
-    }
-    for (i = 0; i < r.size(); ++i) {
-      if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
-        chisla.push_back(stoi(r[i]));
-      } else {
-        znak = r[i];
-      }
-    }
-    if (!chisla.empty())
-      rez = chisla[0];
-    else {
-      cout << "Error" << endl;
-      rez = -1;
-    }
-    cout << znak << endl;
-    if (!chisla.empty()) {
-      for (i = 1; i < chisla.size(); ++i) {
-        if (znak == "+") {
-          rez += chisla[i];
-        }
-        if (znak == "-") {
-          rez -= chisla[i];
-        }
-        if (znak == "*") {
-          rez *= chisla[i];
-        }
-        if (znak == "/") {
-          rez /= chisla[i];
-        }
-      }
+  for (i = 0; i < r.size(); ++i) {
+    if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
+      chisla.push_back(stoi(r[i]));
+    } else {
+      znak = r[i];
     }
-    return rez;
   }
-}
-
-int CalculatePrefix(const std::string& data) {
-  cout << "Not Ready" << endl;
-  int i = 0;
-  int buff_int = 0;
-  std::string znak;
-  int rez = 0;
-  // std::string buff_str;
-  vector<int> chisla;
-  vector<string> r = SplitString(data);
-  for (int i = 0; i < r.size(); ++i) {
-    std::cout << i << "element: " << r[i] << '\n';
+  if (!chisla.empty())
+    rez = chisla[0];
+  else {
+    cout << "Error" << endl;
+    rez = -1;
   }
-  for (i = 0; i < data.size(); ++i) {
-    if ((data[i] >= '0') && (data[i] <= '9')) {
-    }
-    for (i = 0; i < r.size(); ++i) {
-      if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
-        chisla.push_back(stoi(r[i]));
-      } else {
-        znak = r[i];
+  if (!chisla.empty()) {
+    for (i = 1; i < chisla.size(); ++i) {
+      if (znak == "+") {
+        rez += chisla[i];
       }
-    }
-    if (!chisla.empty())
-      rez = chisla[0];
-    else {
-      cout << "Error" << endl;
-      rez = -1;
-    }
-    cout << znak << endl;
-    if (!chisla.empty()) {
-      for (i = 1; i < chisla.size(); ++i) {
-        if (znak == "+") {
-          rez += chisla[i];
-        }
-        if (znak == "-") {
-          rez -= chisla[i];
-        }
-        if (znak == "*") {
-          rez *= chisla[i];
-        }
-        if (znak == "/") {
-          rez /= chisla[i];
-        }
+      if (znak == "-") {
+        rez -= chisla[i];
+      }
+      if (znak == "*") {
+        rez *= chisla[i];
+      }
+      if (znak == "/") {
+        rez /= chisla[i];
       }
     }
-    return rez;
   }
+  return rez;
 }
diff --git a/homework_01/task_02/src/utils.hpp b/homework_01/task_02/src/utils.hpp
index 711028c..d185005 100644
--- a/homework_01/task_02/src/utils.hpp
+++ b/homework_01/task_02/src/utils.hpp
@@ -6,7 +6,3 @@
 
 int Calculate(const std::string& data);
 std::vector<std::string> SplitString(const std::string& data);
-bool IsInt_bad_version(const std::string& str);
-bool IsInt(const std::string& str);
-bool IsDouble(const std::string& str);
-std::string Parce(const std::string& input);
\ No newline at end of file

From 19cd22960ba8dca5b146fcef93ead419c7fbe2bb Mon Sep 17 00:00:00 2001
From: Artem <artrussushkof@gmail.com>
Date: Mon, 5 Dec 2022 18:02:27 +0000
Subject: [PATCH 5/5] update tak02

---
 homework_01/task_02/src/main.cpp  |  7 ++++++-
 homework_01/task_02/src/utils.cpp | 24 +++++++++++++++---------
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/homework_01/task_02/src/main.cpp b/homework_01/task_02/src/main.cpp
index 548ee13..f160237 100644
--- a/homework_01/task_02/src/main.cpp
+++ b/homework_01/task_02/src/main.cpp
@@ -5,4 +5,9 @@
 #include <stack>
 #include <utils.hpp>
 using namespace std;
-int main() { return 0; }
+int main() {
+  cout << "Itog:" << endl;
+  cout << Calculate("8/0") << endl;
+  cout << Calculate("8 / 0") << endl;
+  return 0;
+}
diff --git a/homework_01/task_02/src/utils.cpp b/homework_01/task_02/src/utils.cpp
index c819e1a..cbe7b88 100644
--- a/homework_01/task_02/src/utils.cpp
+++ b/homework_01/task_02/src/utils.cpp
@@ -31,12 +31,12 @@ std::vector<std::string> SplitString(const std::string& data) {
         if (buff != "") {
           v.push_back(buff);
           buff = "";
-          if ((data[i] == '+') or (data[i] == '-') or (data[i] == '*') or
-              (data[i] == '/')) {
-            buff += data[i];
-            v.push_back(buff);
-            buff = "";
-          }
+        }
+        if ((data[i] == '+') or (data[i] == '-') or (data[i] == '*') or
+            (data[i] == '/')) {
+          buff += data[i];
+          v.push_back(buff);
+          buff = "";
         }
       }
     } else {
@@ -54,18 +54,19 @@ std::vector<std::string> SplitString(const std::string& data) {
 int Calculate(const std::string& data) {
   int i = 0;
   int buff_int = 0;
-  std::string znak;
+  std::string znak = "";
   int rez = 0;
   vector<int> chisla;
   vector<string> r = SplitString(data);
   for (i = 0; i < r.size(); ++i) {
+    cout << r[i] << endl;
     if ((r[i] != "+") and (r[i] != "-") and (r[i] != "*") and (r[i] != "/")) {
       chisla.push_back(stoi(r[i]));
     } else {
       znak = r[i];
     }
   }
-  if (!chisla.empty())
+  if (!chisla.empty() and !znak.empty())
     rez = chisla[0];
   else {
     cout << "Error" << endl;
@@ -83,7 +84,12 @@ int Calculate(const std::string& data) {
         rez *= chisla[i];
       }
       if (znak == "/") {
-        rez /= chisla[i];
+        if (chisla[i] != 0)
+          rez /= chisla[i];
+        else {
+          cout << "Delit na Nol nelzya!" << endl;
+          rez = -1;
+        }
       }
     }
   }