diff --git a/firstTaskV1/firstTaskV1.sln b/firstTaskV1/firstTaskV1.sln
new file mode 100644
index 0000000..2a58bcd
--- /dev/null
+++ b/firstTaskV1/firstTaskV1.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "firstTaskV1", "firstTaskV1\firstTaskV1.vcxproj", "{AA955246-93A2-4C17-A4C9-75864DD3582B}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|x64 = Debug|x64
+ Debug|x86 = Debug|x86
+ Release|x64 = Release|x64
+ Release|x86 = Release|x86
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Debug|x64.ActiveCfg = Debug|x64
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Debug|x64.Build.0 = Debug|x64
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Debug|x86.ActiveCfg = Debug|Win32
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Debug|x86.Build.0 = Debug|Win32
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Release|x64.ActiveCfg = Release|x64
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Release|x64.Build.0 = Release|x64
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Release|x86.ActiveCfg = Release|Win32
+ {AA955246-93A2-4C17-A4C9-75864DD3582B}.Release|x86.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {0ACCB585-F11E-4776-992A-D26D70A758C4}
+ EndGlobalSection
+EndGlobal
diff --git a/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj b/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj
new file mode 100644
index 0000000..bc918e8
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj
@@ -0,0 +1,154 @@
+
+
+
+
+ Debug
+ Win32
+
+
+ Release
+ Win32
+
+
+ Debug
+ x64
+
+
+ Release
+ x64
+
+
+
+ 16.0
+ Win32Proj
+ {aa955246-93a2-4c17-a4c9-75864dd3582b}
+ firstTaskV1
+ 10.0
+
+
+
+ Application
+ true
+ v143
+ Unicode
+
+
+ Application
+ false
+ v143
+ true
+ Unicode
+
+
+ Application
+ true
+ v143
+ Unicode
+
+
+ Application
+ false
+ v143
+ true
+ Unicode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ true
+
+
+ false
+
+
+ true
+
+
+ false
+
+
+
+ Level3
+ true
+ WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
+
+
+
+ Level3
+ true
+ true
+ true
+ WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+ true
+ true
+
+
+
+
+ Level3
+ false
+ _DEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+
+
+
+
+ Level3
+ true
+ true
+ true
+ NDEBUG;_CONSOLE;%(PreprocessorDefinitions)
+ true
+
+
+ Console
+ true
+ true
+ true
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj.filters b/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj.filters
new file mode 100644
index 0000000..e4d8c96
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/firstTaskV1.vcxproj.filters
@@ -0,0 +1,35 @@
+
+
+
+
+ {4FC737F1-C7A5-4376-A066-2A32D752A2FF}
+ cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx
+
+
+ {93995380-89BD-4b04-88EB-625FBE52EBFB}
+ h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd
+
+
+ {67DA6AB6-F800-4c08-8B7A-83BB121AAD01}
+ rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms
+
+
+
+
+ Исходные файлы
+
+
+ Исходные файлы
+
+
+
+
+ Исходные файлы
+
+
+
+
+ Исходные файлы
+
+
+
\ No newline at end of file
diff --git a/firstTaskV1/firstTaskV1/main.c b/firstTaskV1/firstTaskV1/main.c
new file mode 100644
index 0000000..9b5d5c8
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/main.c
@@ -0,0 +1,95 @@
+#include "stack.h"
+#include
+#include
+#include
+#include
+#include
+
+int returnFirstSymbolInNumber(int* number, int sizeNumber) {
+ int divide = pow(10, sizeNumber - 1);
+ int result = *number / divide;
+ *number = *number % divide;
+ return result;
+}
+
+void workWithFile(Error* errorCheck, const char* fileName, char* numberString) {
+ FILE* file = fopen(fileName, "r");
+ if (file == NULL) {
+ *errorCheck = anotherError;
+ return -1;
+ }
+
+ Stack* stack = createStack(errorCheck);
+ char symbol = 0;
+ while (fscanf(file, "%c", &symbol) == 1) {
+ addElementsFromStringToStack(stack, errorCheck, symbol);
+ if (*errorCheck != ok) {
+ stack = clearStack(stack, errorCheck);
+ fclose(file);
+ return;
+ }
+ }
+ fclose(file);
+ int sizeNumber = 0;
+ int number = createNumberFromStack(stack, errorCheck);
+ //MAX_INT - 10
+ int copyNumber = number;
+ while (copyNumber != 0) {
+ copyNumber /= 10;
+ ++sizeNumber;
+ }
+
+ int i = 0;
+ while (number != 0) {
+ numberString[i] = returnFirstSymbolInNumber(&number, sizeNumber) + '0';
+ --sizeNumber;
+ ++i;
+ }
+ free(stack);
+ return numberString;
+}
+
+bool test() {
+ char string[11] = { '\0' };
+ Error check = ok;
+ workWithFile(&check, "test.txt", string);
+ if (check != ok) {
+ return false;
+ }
+ return strcmp(string, "13") == 0;
+}
+
+int main() {
+ if (test()) {
+ printf("Test correct\n");
+ } else {
+ printf("Error\n");
+ return -1;
+ }
+ printf("Enter fileName with extension No more than 99 symbols\n");
+ char fileName[100] = {'\0'};
+ int checkScanf = scanf_s("%s", fileName, 99);
+ while (checkScanf != 1) {
+ while (getchar() != '\n') {
+ }
+ checkScanf = scanf_s("%s", fileName, 99);
+ }
+ Error errorCheck = ok;
+ char numberString[11] = { '\0' };
+ workWithFile(&errorCheck, fileName, numberString);
+ switch (errorCheck)
+ {
+ case(ok):
+ break;
+ case(emptyPointer):
+ printf("Error with null pointer\n");
+ return -1;
+ case(memoryError):
+ printf("Error with memory\n");
+ return -1;
+ case(anotherError):
+ printf("Error\n");
+ return -1;
+ }
+ printf("%s\n", numberString);
+}
\ No newline at end of file
diff --git a/firstTaskV1/firstTaskV1/stack.c b/firstTaskV1/firstTaskV1/stack.c
new file mode 100644
index 0000000..1fe710c
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/stack.c
@@ -0,0 +1,82 @@
+#include "stack.h"
+#include
+#include
+
+typedef struct NodeStack {
+ struct NodeStack* next;
+ char value;
+} NodeStack;
+
+typedef struct Stack {
+ struct NodeStack* head;
+}Stack;
+
+int createNumberFromStack(Stack* stack, Error* errorCheck) {
+ if (stack == NULL) {
+ *errorCheck = emptyPointer;
+ return;
+ }
+ NodeStack* walker = stack->head;
+ int number = 0;
+ int multiplay = 1;
+
+ while (walker != NULL) {
+ number += ((int)walker->value - 48)* multiplay;
+ multiplay *= 2;
+ walker = walker->next;
+ }
+
+ return number;
+}
+
+Stack* createStack(Error* errorCheck) {
+ Stack* stack = calloc(1, sizeof(Stack));
+ if (stack == NULL) {
+ *errorCheck = memoryError;
+ return NULL;
+ }
+ return stack;
+}
+
+void addElementsFromStringToStack(Stack* stack, Error* errorCheck, char value) {
+ NodeStack* temp = calloc(1, sizeof(NodeStack));
+ if (temp == NULL) {
+ *errorCheck = memoryError;
+ return;
+ }
+ temp->value = value;
+ temp->next = stack->head;
+
+ stack->head = temp;
+ return;
+}
+
+void deleteElementInStack(Stack* stack, Error* errorCheck) {
+ if (stack == NULL || stack->head == NULL) {
+ *errorCheck = anotherError;
+ return;
+ }
+ int value = stack->head->value;
+ NodeStack* temp = stack->head->next;
+ free(stack->head);
+ stack->head = temp;
+ return value;
+}
+
+Stack* clearStack(Stack* stack, Error* errorCheck) {
+ if (stack == NULL) {
+ return;
+ }
+ while (!isEmpty(stack)) {
+ deleteElementInStack(stack, errorCheck);
+ if (*errorCheck != ok) {
+ return stack;
+ }
+ }
+ free(stack);
+ return NULL;
+}
+
+bool isEmpty(Stack* stack) {
+ return stack == NULL ? true : stack->head == NULL;
+}
\ No newline at end of file
diff --git a/firstTaskV1/firstTaskV1/stack.h b/firstTaskV1/firstTaskV1/stack.h
new file mode 100644
index 0000000..93beab8
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/stack.h
@@ -0,0 +1,23 @@
+#pragma once
+#include
+
+typedef struct Stack Stack;
+
+typedef enum Error {
+ memoryError,
+ emptyPointer,
+ anotherError,
+ ok,
+}Error;
+
+Stack* createStack(Error* errorCheck);
+
+int createNumberFromStack(Stack* stack, Error* errorCheck);
+
+void addElementsFromStringToStack(Stack* stack, Error* errorCheck, char value);
+
+void deleteElementInStack(Stack* stack, Error* errorCheck);
+
+Stack* clearStack(Stack* stack, Error* errorCheck);
+
+bool isEmpty(Stack* stack);
\ No newline at end of file
diff --git a/firstTaskV1/firstTaskV1/test.txt b/firstTaskV1/firstTaskV1/test.txt
new file mode 100644
index 0000000..1ea87ef
--- /dev/null
+++ b/firstTaskV1/firstTaskV1/test.txt
@@ -0,0 +1 @@
+1101
\ No newline at end of file