From 50558803fa68b4fa4bf326f96a22caa6cff0cbf3 Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 18:37:07 +0330
Subject: [PATCH 1/6] no bug

---
 4.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/4.cpp b/4.cpp
index a9a32f2..5a6ab7a 100644
--- a/4.cpp
+++ b/4.cpp
@@ -6,4 +6,5 @@ int main()
     float *ptr2 = ptr1 + 3;
     printf("%f", *ptr2 - *ptr1);
     return 0;
-}
\ No newline at end of file
+}
+//78.000 will print
\ No newline at end of file

From bcd6e57a394d4595713ba50e1a9d6313cda49b7e Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 18:37:35 +0330
Subject: [PATCH 2/6] no bug

---
 5.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/5.cpp b/5.cpp
index e9a1737..60e58ee 100644
--- a/5.cpp
+++ b/5.cpp
@@ -7,4 +7,6 @@ int main()
     printf("%d\n", (*ptr2 - *ptr1));
     printf("%c", (char)(*ptr2 - *ptr1));
     return 0;
-}
\ No newline at end of file
+}
+//50 will print
+//2 will print
\ No newline at end of file

From cbc674257c229e6ccf1acee87f4357da7a62361d Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 18:37:52 +0330
Subject: [PATCH 3/6] no bug

---
 6.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/6.cpp b/6.cpp
index bb721c3..1c1f682 100644
--- a/6.cpp
+++ b/6.cpp
@@ -9,3 +9,4 @@ int main()
 	printf("%d\n", a);
 	return 0;
 }
+//513 will print

From 249d03e96a8aa1d2e6065d9d8f02040fee9e12a4 Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 18:38:09 +0330
Subject: [PATCH 4/6] no bug

---
 7.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/7.cpp b/7.cpp
index 7b065a0..23eeabc 100644
--- a/7.cpp
+++ b/7.cpp
@@ -7,4 +7,5 @@ int main()
 	p += 2;
 	printf("%d", *p);
 	return 0;
-}
\ No newline at end of file
+}
+//3 will print
\ No newline at end of file

From 3e8f93a07b08d723fa799896d33f0af4e9b32bf2 Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 19:02:12 +0330
Subject: [PATCH 5/6] bug fixed

---
 2.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/2.cpp b/2.cpp
index 6a27746..624107a 100644
--- a/2.cpp
+++ b/2.cpp
@@ -5,11 +5,11 @@ using namespace std;
 
 // count all the specific char in the whole array of strings
 int countAllSpecificChars(string sArr[], int arrLength, char specificChar) {
-    int count;
-    for (int i = 0; i <= arrLength; ++i)
-        for (int j = 0; j <= sArr[i].size(); ++j)
+    int count = 0;
+    for (int i = 0; i < arrLength; i++)//i++    i < arrLength
+        for (int j = 0; j < sArr[i].size(); j++)//j++ j < sArr[i].size()
             // if the jth char of the string is the specific char
-            if (sArr[i][j] = specificChar)
+            if (sArr[i][j] == specificChar)//==
                 count++;
     return count;
 }

From 04435cb27fa8d1346a0f480c7d5898e68a5de2b7 Mon Sep 17 00:00:00 2001
From: Amir965419 <133672881+Amir965419@users.noreply.github.com>
Date: Mon, 15 May 2023 19:02:45 +0330
Subject: [PATCH 6/6] bug fixed, one bug remains

---
 1.cpp | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/1.cpp b/1.cpp
index 190c209..fbbe4b6 100644
--- a/1.cpp
+++ b/1.cpp
@@ -2,12 +2,18 @@
 using namespace std;
 
 class container {
-
+protected:
 	int size;
 public:
 	float* p;
+	container(){
+
+	}
 	container(int s) :size(s){}
 	const int& getsize() { return size;}
+	void set_size(int size){
+		this->size = size;
+	}
 
 };
 
@@ -15,11 +21,14 @@ class vector :public container {
 
 	int call_num;
 public:
-	explicit vector(int l) :len(l),size(1 * 100){
+	vector(){
+
+	}
+	explicit vector(int l) :len(l),container(1 * 100){
 		p = new float();
 	}
 	int len;
-	int& getlen() const {
+	int& getlen(){
 		call_num ++;
 		return len;
 	}
@@ -29,12 +38,13 @@ class vector :public container {
 int main() {
 
 	container c1(100);
-	vector v1 = c1;
+	vector v1 = (vector)c1;
 	container& r1 = v1;
 	container c2 = 100;
-	c2.getsize() = 20;
+	c2.set_size(20);//set function 
+	c2.getsize();
 	cout << c2.getsize();
-	vector v2 = 100;
-	v2.getlen = 40;
+	vector v2{100};
+	v2.getlen() = 40;
 	cout << v2.getlen();
 }
\ No newline at end of file