分支21完成

.gitignore

@@ -170,3 +170,11 @@ Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/85aeac5e7d03af9f/20_MOVEZEROES.ipch
 Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/b02cd44cfc574591/20_MOVEZEROES.ipch
 Alogrithm/Alogrithm/Debug/20_MoveZeroes.obj
 Alogrithm/UnitTest/Debug/UnitTest.tlog/link.7728.delete.1.tlog
+Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/38968d1650bcc194/21_REVERSE.ipch
+Alogrithm/.vs/Alogrithm/v16/ipch/AutoPCH/8f9978f090d76ea5/21_REVERSE.ipch
+Alogrithm/.vs/Alogrithm/v16/TestStore/0/006.testlog
+Alogrithm/Alogrithm/Debug/21_Reverse.obj
+Alogrithm/TestResults/3a4f3224-7b61-4f96-9f94-502bfe5fd902/林_MI-1 2021-01-26 13_42_25.coverage
+Alogrithm/TestResults/8c6c8585-34aa-48ac-85e3-14d7928dfa16/林_MI-1 2021-01-26 13_40_06.coverage
+Alogrithm/TestResults/a754108b-7c18-474b-b14f-0bda44b6f79f/林_MI-1 2021-01-26 13_35_01.coverage
+Alogrithm/UnitTest/Debug/UnitTest.tlog/link.1416.delete.1.tlog

Alogrithm/Alogrithm/Alogrithm.vcxproj

@@ -152,6 +152,7 @@
     <ClCompile Include="src\19_MySqrt.cpp" />
     <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp" />
     <ClCompile Include="src\20_MoveZeroes.cpp" />
+    <ClCompile Include="src\21_Reverse.cpp" />
     <ClCompile Include="src\2_ExcelSheetColumnTitle.cpp" />
     <ClCompile Include="src\3_bool IsUgly.cpp" />
     <ClCompile Include="src\4_IsPalindrome.cpp" />
@@ -174,6 +175,7 @@
     <ClInclude Include="include\19_MySqrt.h" />
     <ClInclude Include="include\1_ContainsNearbyDuplicate.h" />
     <ClInclude Include="include\20_MoveZeroes.h" />
+    <ClInclude Include="include\21_Reverse.h" />
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h" />
     <ClInclude Include="include\3_bool IsUgly.h" />
     <ClInclude Include="include\4_IsPalindrome.h" />
@@ -195,6 +197,7 @@
     <None Include="config\19_MySqrt.ini" />
     <None Include="config\1_ContainsNearbyDuplicate.ini" />
     <None Include="config\20_MoveZeroes.ini" />
+    <None Include="config\21_Reverse.ini" />
     <None Include="config\2_ExcelSheetColumnTiTle.ini" />
     <None Include="config\3_bool IsUgly.ini" />
     <None Include="config\4_IsPalindrome.ini" />

Alogrithm/Alogrithm/Alogrithm.vcxproj.filters

@@ -84,6 +84,9 @@
     <ClCompile Include="src\20_MoveZeroes.cpp">
       <Filter>源文件\src</Filter>
     </ClCompile>
+    <ClCompile Include="src\21_Reverse.cpp">
+      <Filter>源文件\src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h">
@@ -143,6 +146,9 @@
     <ClInclude Include="include\20_MoveZeroes.h">
       <Filter>头文件\include</Filter>
     </ClInclude>
+    <ClInclude Include="include\21_Reverse.h">
+      <Filter>头文件\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="config\3_bool IsUgly.ini">
@@ -202,5 +208,8 @@
     <None Include="config\20_MoveZeroes.ini">
       <Filter>资源文件\config</Filter>
     </None>
+    <None Include="config\21_Reverse.ini">
+      <Filter>资源文件\config</Filter>
+    </None>
   </ItemGroup>
 </Project>

Alogrithm/Alogrithm/config/21_Reverse.ini

@@ -0,0 +1,24 @@
+[Test1]
+Input=123
+Output=321
+[Test2]
+Input=-123
+Output=-321
+[Test3]
+Input=2147483647
+Output=0
+[Test4]
+Input=-2147483648
+Output=0
+[Test5]
+Input=2147483641
+Output=1463847412
+[Test6]
+Input=1663847412
+Output=0
+[Test7]
+Input=1000123
+Output=3210001
+[Test8]
+Input=-846384741
+Output=-147483648

Alogrithm/Alogrithm/include/21_Reverse.h

@@ -0,0 +1,3 @@
+#pragma once
+#include <limits.h>
+int Reverse(int x);

Alogrithm/Alogrithm/src/21_Reverse.cpp

@@ -0,0 +1,20 @@
+#include "../include/21_Reverse.h"
+//题目：给出一个32位的有符号整数，你需要将这个整数中每位上的数字进行反转。
+//思路：入参从个位开始取，把取到的数乘10累加，就是需要的结果
+//		溢出问题：在每一次相加之前检查是否溢出
+//				正溢出：当sum大于214748367/10,或者sum 等于 2147483647/10 && 取到的个位数pop大于7，则溢出
+//				负溢出：当sum小于-214748368/10,或者sum 等于 -2147483648/10 && 取到的个位数pop小于-8，则溢出
+int Reverse(int x) {
+	int sum = 0;	//用来存放返回值
+	int pop = 0;	//存放入参个位的数字
+	while (x != 0) {	//对入参循环除10，直到除尽为止
+		pop = x % 10;	//取到个位的数字
+		x = x / 10;		//入参除10，为取下一个数做准备
+		if ((sum > INT_MAX / 10) || (sum == INT_MAX/10 && pop > 7)) //正数溢出判断
+			return 0;
+		if ((sum < INT_MIN / 10) || (sum == INT_MIN/10 && pop < -8)) //负数溢出判断
+			return 0;
+		sum = sum * 10 + pop;	//把得到的个位数*10相加，得到的就是需要返回的数
+	}
+	return sum;
+}

Alogrithm/Alogrithm/src/main.cpp

@@ -1,13 +1,11 @@
 #include<stdio.h>
-#include "../include/20_MoveZeroes.h"
+#include "../include/21_Reverse.h"
 
 int main()
 {
-	int arr[6] = { 1,2,0,1,0};
-	MoveZeroes(arr, 5);
-	for (int i = 0; i < 5; i++) {
-		printf("%d	", arr[i]);
-	}
+
+		printf("%d	",Reverse(214748364));
+
 
 	
 }

Alogrithm/UnitTest/UnitTest.cpp

@@ -21,6 +21,7 @@ using namespace Microsoft::VisualStudio::CppUnitTestFramework;
 #define FileName_18 "../Alogrithm/config/18_PlusOne.ini"
 #define FileName_19 "../Alogrithm/config/19_MySqrt.ini"
 #define FileName_20 "../Alogrithm/config/20_MoveZeroes.ini"
+#define FileName_21 "../Alogrithm/config/21_Reverse.ini"
 
 namespace UnitTest
 {
@@ -371,4 +372,19 @@ namespace UnitTest
 			}
 		}
 	};
+	TEST_CLASS(UnitTest_21)
+	{
+		TEST_METHOD(TestMethode1)
+		{
+			char Section_Name[100][10] = { 0 };
+			int  Section_Count = CalcCount(100, Section_Name, FileName_21);
+			CString input, output;
+			for (int i = 0; i < Section_Count; i++) {
+				GetPrivateProfileString(Section_Name[i], "Input", " ", input.GetBuffer(100), 100, FileName_21);
+				GetPrivateProfileString(Section_Name[i], "Output", " ", output.GetBuffer(100), 100, FileName_21);
+				int nReal = Reverse(_ttoi(input));
+				Assert::AreEqual(nReal, _ttoi(output));
+			}
+		}
+	};
 }

Alogrithm/UnitTest/UnitTest.vcxproj

@@ -103,7 +103,7 @@
       <SubSystem>Windows</SubSystem>
       <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
-      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;../Alogrithm/Debug/13_MyAtoi.obj;../Alogrithm/Debug/14_SingleNumber.obj;../Alogrithm/Debug/15_WordPattern.obj;../Alogrithm/Debug/16_ReverseBits.obj;../Alogrithm/Debug/18_PlusOne.obj;../Alogrithm/Debug/19_MySqrt.obj;../Alogrithm/Debug/20_MoveZeroes.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>../Alogrithm/Debug/1_ContainsNearbyDuplicate.obj;../Alogrithm/Debug/2_ExcelSheetColumnTitle.obj;../Alogrithm/Debug/3_bool IsUgly.obj;../Alogrithm/Debug/4_IsPalindrome.obj;../Alogrithm/Debug/5_MinDepth.obj;../Alogrithm/Debug/6_ContainsDuplicate.obj;../Alogrithm/Debug/7_MaxDepth.obj;../Alogrithm/Debug/8_HammingWeight.obj;../Alogrithm/Debug/9_AddBinary.obj;../Alogrithm/Debug/10_BinaryTreePaths.obj;../Alogrithm/Debug/11_CanWinNim.obj;../Alogrithm/Debug/12_IsValid.obj;../Alogrithm/Debug/13_MyAtoi.obj;../Alogrithm/Debug/14_SingleNumber.obj;../Alogrithm/Debug/15_WordPattern.obj;../Alogrithm/Debug/16_ReverseBits.obj;../Alogrithm/Debug/18_PlusOne.obj;../Alogrithm/Debug/19_MySqrt.obj;../Alogrithm/Debug/20_MoveZeroes.obj;../Alogrithm/Debug/21_Reverse.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

Alogrithm/UnitTest/pch.h

@@ -32,6 +32,7 @@
 #include"../Alogrithm/include/18_PlusOne.h"
 #include"../Alogrithm/include/19_MySqrt.h"
 #include"../Alogrithm/include/20_MoveZeroes.h"
+#include"../Alogrithm/include/21_Reverse.h"
 
 
 int CalcCount(int n, char(*str)[10],const char *FileName);