diff --git a/1.cpp b/1.cpp
index fedde2c..e3f82a7 100644
--- a/1.cpp
+++ b/1.cpp
@@ -4,7 +4,7 @@
 
 using namespace std;
 
-long long *b;
+long long b[10];
 
 long long int factorial(int n)
 {
@@ -13,7 +13,6 @@ long long int factorial(int n)
 
 long long int *producingTheFactorialFractions()
 {
-    long long b[10];
 
 	for (int i = 10; i >= 0; i--)
 	{
diff --git a/2.cpp b/2.cpp
index 6a27746..3afb12e 100644
--- a/2.cpp
+++ b/2.cpp
@@ -4,13 +4,20 @@
 using namespace std;
 
 // count all the specific char in the whole array of strings
-int countAllSpecificChars(string sArr[], int arrLength, char specificChar) {
+int countAllSpecificChars(string sArr[], int arrLength, string specificChar) {
     int count;
+    string s;
     for (int i = 0; i <= arrLength; ++i)
+    {
         for (int j = 0; j <= sArr[i].size(); ++j)
+        {
             // if the jth char of the string is the specific char
-            if (sArr[i][j] = specificChar)
+            s=sArr[i][j];
+            if (s == specificChar)
                 count++;
+        }
+    }
+
     return count;
 }
 
@@ -21,7 +28,7 @@ int main() {
             "ap",
             "class"
     };
-    char findIt;
+    string findIt;
     cin >> findIt;
     cout << countAllSpecificChars(sArr, 4, findIt);
 }
\ No newline at end of file
diff --git a/3.cpp b/3.cpp
index 77eb722..b545f7c 100644
--- a/3.cpp
+++ b/3.cpp
@@ -9,6 +9,7 @@ struct alfa {
 	long long x;
 	alfaptr next;
 };
+
 alfaptr rear = NULL, front = NULL;
 void push(int x)
 {
@@ -34,6 +35,7 @@ void pop()
 		front = node;
 	}
 }
+
 void search(int x)
 {
 	alfaptr node = front;
@@ -97,7 +99,7 @@ int average()
 	return sum / count;
 }
 
-void main()
+int main()
 {
 	int cmd;
 	long long int x;
diff --git a/4.cpp b/4.cpp
index a9a32f2..ef3ded9 100644
--- a/4.cpp
+++ b/4.cpp
@@ -1,4 +1,6 @@
 #include<stdio.h>
+using namespace std;
+
 int main()
 {
     float arr[5] = { 12.5, 10.0, 13.5, 90.5, 0.5 };
@@ -6,4 +8,7 @@ int main()
     float *ptr2 = ptr1 + 3;
     printf("%f", *ptr2 - *ptr1);
     return 0;
+
+    //the result
+    //78.000000
 }
\ No newline at end of file
diff --git a/5.cpp b/5.cpp
index 1be3d10..dc355f4 100644
--- a/5.cpp
+++ b/5.cpp
@@ -1,4 +1,6 @@
 #include<stdio.h>
+using namespace std;
+
 int main()
 {
     int arr[] = { 10, 20, 30, 40, 50, 60 };
@@ -7,4 +9,7 @@ int main()
     printf("%d\n", (*ptr2 - *ptr1));
     printf("%c", (char)(*ptr2 - *ptr1));
     return 0;
+
+    //the result
+    //50 , 2
 }
\ No newline at end of file
diff --git a/6.cpp b/6.cpp
index f8b3141..80a3d19 100644
--- a/6.cpp
+++ b/6.cpp
@@ -1,4 +1,6 @@
 #include<stdio.h>
+using namespace std;
+
 int main()
 {
 	int a;
@@ -8,4 +10,7 @@ int main()
 	x[0] = 1;
 	printf("%d\n", a);
 	return 0;
+
+	//the result
+	//513
 }
diff --git a/7.cpp b/7.cpp
index 7b065a0..b6bf691 100644
--- a/7.cpp
+++ b/7.cpp
@@ -1,4 +1,6 @@
 #include<stdio.h>
+using namespace std;
+
 int main()
 {
 	int arr[] = { 1, 2, 3, 4, 5 };
@@ -7,4 +9,7 @@ int main()
 	p += 2;
 	printf("%d", *p);
 	return 0;
+
+	//the result 
+	//3
 }
\ No newline at end of file
diff --git a/8.cpp b/8.cpp
index ac3d613..7da7034 100644
--- a/8.cpp
+++ b/8.cpp
@@ -1,4 +1,5 @@
 #include<stdio.h>
+using namespace std;
 const char * f(const char **p) {
 	auto q = (p + sizeof(char))[1];
 	return q;
@@ -8,6 +9,7 @@ int main() {
 	printf("%c%c ", *f(str), *(f(str) + 1));
 	printf("%c%c%c%c\n", **str, *(*(str + 1) + 1), *((str + 2)[-1] + 1), **&*(&str[-1] + 1));
 
-
+    //the result 
+	//Be WooW
 	
 }