Code Review: Code refactoring

- Add from_json classmethod
- Question language is passed directly to the code server
- Fix errors in evaluation of code
- Fix test cases

18 files changed, 654 insertions, 0 deletions

diff --git a/testapp/exam/c_cpp_files/main.cpp b/testapp/exam/c_cpp_files/main.cpp
new file mode 100755
index 0000000..ebe1f08
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main.cpp
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int add(int, int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = add(0,0);
+        printf("Input submitted to the function: 0, 0");
+	check(0, result);
+	result = add(2,3);
+        printf("Input submitted to the function: 2 3");
+	check(5,result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main2.c b/testapp/exam/c_cpp_files/main2.c
new file mode 100755
index 0000000..ccd1768
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main2.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int add(int, int, int);
+
+template <class T>
+void check(T expect,T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (0);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = add(0,0,0);
+        printf("Input submitted to the function: 0, 0, 0");
+	check(0, result);
+	result = add(2,3,3);
+        printf("Input submitted to the function: 2, 3, 3");
+	check(8,result);
+	printf("All Correct\n");
+}
diff --git a/testapp/exam/c_cpp_files/main_array_check.cpp b/testapp/exam/c_cpp_files/main_array_check.cpp
new file mode 100755
index 0000000..ea34fdd
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_array_check.cpp
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern  bool array_check(int [], int);
+
+template <class T>
+
+void check(T expect,T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+ 	int a[] = {1,2,3,0,0};
+	result = array_check(a, 2);
+	printf("Input submitted to the function: {1, 2, 3, 0, 0} and index 2");
+	check(false, result);
+	int b[] = {1,2,3,4,5};
+	result = array_check(b, 3);
+	printf("Input submitted to the function: {1, 2, 3, 4, 5} and index 3");
+	check(true, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_array_check_all.cpp b/testapp/exam/c_cpp_files/main_array_check_all.cpp
new file mode 100755
index 0000000..140578e
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_array_check_all.cpp
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern  bool array_check_all(int []);
+
+template <class T>
+
+void check(T expect,T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	int a[] = {1,2,3,2,8};
+	result = array_check_all(a);
+	printf("Input submitted to the function: {1, 2, 3, 2, 8}");
+	check(false, result);
+	int b[] = {4,2,32,4,56};
+	result = array_check_all(b);
+	printf("Input submitted to the function: {4, 2, 32, 4, 56}");
+	check(true, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_array_sum.cpp b/testapp/exam/c_cpp_files/main_array_sum.cpp
new file mode 100755
index 0000000..55b2ebf
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_array_sum.cpp
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int array_sum(int []);
+
+template <class T>
+
+void check(T expect,T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+        int a[] = {1,2,3,0,0};
+	result = array_sum(a);
+        printf("Input submitted to the function: {1, 2, 3, 0, 0}");
+	check(6, result);
+	int b[] = {1,2,3,4,5};
+       	result = array_sum(b);
+        printf("Input submitted to the function: {1, 2, 3, 4, 5}");
+	check(15,result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_blackJack.cpp b/testapp/exam/c_cpp_files/main_blackJack.cpp
new file mode 100755
index 0000000..cc54e78
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_blackJack.cpp
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int blackJack(int, int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = blackJack(11, 12);
+	printf("Input submitted to the function: 11, 12");
+	check(12, result);
+	result = blackJack(15, 19);
+	printf("Input submitted to the function: 15, 19");
+	check(19, result);
+	result = blackJack(10, 21);
+	printf("Input submitted to the function: 10, 21");
+	check(21, result);
+	result = blackJack(31, 22);
+	printf("Input submitted to the function: 31, 22");
+	check(0, result);
+	result = blackJack(91, 61);
+	printf("Input submitted to the function: 91, 61");
+	check(0, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_check_digit.cpp b/testapp/exam/c_cpp_files/main_check_digit.cpp
new file mode 100755
index 0000000..d3bf3d6
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_check_digit.cpp
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern bool check_digit(int, int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	result = check_digit(12, 23);
+	printf("Input submitted to the function: 12, 23");
+	check(true, result);
+	result = check_digit(22, 11);
+	printf("Input submitted to the function: 121");
+	check(false, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_count667.cpp b/testapp/exam/c_cpp_files/main_count667.cpp
new file mode 100755
index 0000000..f146e8c
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_count667.cpp
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int count667(int[]);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	int arr[5] = {2,6,4,5,6};
+	result = count667(arr);
+	printf("Input submitted to the function: [2, 6, 4, 5,6]");
+	check(0, result);
+	int arr2[5] = {6,6,2,17,9};
+	result = count667(arr2);
+	printf("Input submitted to the function: [6, 6, 2, 17, 9]");
+	check(1, result);
+	int arr3[5] = {6,6,6,7,1};
+	result = count667(arr3);
+	printf("Input submitted to the function: [6, 6, 7, 2, 1]");
+	check(3, result);
+	int arr4[5] = {6,7,7,6,6};
+	result = count667(arr4);
+	printf("Input submitted to the function: [6, 7, 7, 6, 6]");
+	check(2, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_count7.cpp b/testapp/exam/c_cpp_files/main_count7.cpp
new file mode 100755
index 0000000..982e930
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_count7.cpp
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int count7(int[]);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	int arr[4] = {2,3,4,5};
+	result = count7(arr);
+	printf("Input submitted to the function: [2, 3, 4, 5]");
+	check(0, result);
+	int arr2[4] = {1,2,17,9};
+	result = count7(arr2);
+	printf("Input submitted to the function: [1, 2, 17, 9]");
+	check(0, result);
+	int arr3[4] = {7,9,2,1};
+	result = count7(arr3);
+	printf("Input submitted to the function: [7, 9, 2, 1]");
+	check(1, result);
+	int arr4[4] = {1,7,7,7};
+	result = count7(arr4);
+	printf("Input submitted to the function: [1, 7, 7, 7]");
+	check(3, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_fact.cpp b/testapp/exam/c_cpp_files/main_fact.cpp
new file mode 100755
index 0000000..a4ff230
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_fact.cpp
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int factorial(int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = factorial(0);
+        printf("Input submitted to the function: 0");
+	check(1, result);
+	result = factorial(3);
+        printf("Input submitted to the function: 3");
+	check(6, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_greatest.cpp b/testapp/exam/c_cpp_files/main_greatest.cpp
new file mode 100755
index 0000000..6d0a7c2
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_greatest.cpp
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int greatest(int, int, int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = greatest(1, 2, 3);
+        printf("Input submitted to the function: 1, 2, 3");
+	check(3, result);
+	result = greatest(5, 9, 2);
+        printf("Input submitted to the function: 5, 9, 2");
+	check(9, result);
+	result = greatest(7, 2, 4);
+        printf("Input submitted to the function: 7, 2, 4");
+	check(7, result);
+        result = greatest(11, 2, 45);
+        printf("Input submitted to the function: 11, 2, 45");
+        check(45, result);
+        result = greatest(2, 7, 0);
+        printf("Input submitted to the function: 2, 7, 0");
+        check(7, result);
+        result = greatest(9, 6, 5);
+        printf("Input submitted to the function: 9, 6, 5");
+        check(9, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_hello_name.c b/testapp/exam/c_cpp_files/main_hello_name.c
new file mode 100755
index 0000000..71b83a2
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_hello_name.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+void check(char expect[], char result[])
+{
+    if (expect == result)
+    {
+	printf("Correct:expected %s got %s \n",expect,result);
+    }
+    else 
+    {
+	printf("ERROR:expected %s got %s \n",expect,result);
+	exit (0);
+   }
+}
+
+int main(void)
+{
+	char result[20];
+	char A[20]=" pratham";
+	char B[20]=" sir";
+ 	result[20] = message(A);
+        printf("%s",result);
+	check("hello pratham", result);
+	result[20] = message(B);
+	check("hello sir",result);
+	printf("All Correct\n");
+}
diff --git a/testapp/exam/c_cpp_files/main_lessThan9.cpp b/testapp/exam/c_cpp_files/main_lessThan9.cpp
new file mode 100755
index 0000000..722b4bb
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_lessThan9.cpp
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern bool lessThan9(int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	result = lessThan9(10);
+	printf("Input submitted to the function: 10");
+	check(false, result);
+	result = lessThan9(17);
+	printf("Input submitted to the function: 17");
+	check(true, result);
+	result = lessThan9(16);
+	printf("Input submitted to the function: 16");
+	check(true, result);
+	result = lessThan9(15);
+	printf("Input submitted to the function: 15");
+	check(false, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_mean.cpp b/testapp/exam/c_cpp_files/main_mean.cpp
new file mode 100755
index 0000000..21a4b1a
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_mean.cpp
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern bool mean(int, int , int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	result = mean(11, 11, 11);
+	printf("Input submitted to the function: 11, 121, 11");
+	check(true, result);
+	result = mean(16, 12, 9);
+	printf("Input submitted to the function: 16, 144, 9");
+	check(true, result);
+	result = mean(19, 221, 9);
+	printf("Input submitted to the function: 19, 221, 9");
+	check(false, result);
+	result = mean(34, 12, 3);
+	printf("Input submitted to the function: 11, 121, 11");
+	check(false, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_palindrome.cpp b/testapp/exam/c_cpp_files/main_palindrome.cpp
new file mode 100755
index 0000000..0e66928
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_palindrome.cpp
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern bool palindrome(int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	result = palindrome(123);
+        printf("Input submitted to the function: 123");
+	check(false, result);
+	result = palindrome(121);
+        printf("Input submitted to the function: 121");
+	check(true, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_roundTo10.cpp b/testapp/exam/c_cpp_files/main_roundTo10.cpp
new file mode 100755
index 0000000..12c961d
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_roundTo10.cpp
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int roundTo10(int,int,int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = roundTo10(10, 22, 39);
+	printf("Input submitted to the function: 10, 22, 39");
+	check(70, result);
+	result = roundTo10(45, 42, 39);
+	printf("Input submitted to the function: 45, 42, 39");
+	check(130, result);
+	result = roundTo10(7, 3, 9);
+	printf("Input submitted to the function: 7, 3, 9");
+	check(20, result);
+	result = roundTo10(1, 2, 3);
+	printf("Input submitted to the function: 1, 2, 3");
+	check(0, result);
+	result = roundTo10(30, 40, 50);
+	printf("Input submitted to the function: 30, 40, 50");
+	check(120, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_specialSum.cpp b/testapp/exam/c_cpp_files/main_specialSum.cpp
new file mode 100755
index 0000000..d614536
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_specialSum.cpp
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int specialSum(int,int,int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	int result;
+	result = specialSum(10, 2, 9);
+	printf("Input submitted to the function: 10, 2, 9");
+	check(21, result);
+	result = specialSum(1, 21, 9);
+	printf("Input submitted to the function: 1, 21, 9");
+	check(1, result);
+	result = specialSum(21, 2, 3);
+	printf("Input submitted to the function: 21, 2, 3");
+	check(0, result);
+	result = specialSum(10, 2, 21);
+	printf("Input submitted to the function: 10, 2, 21");
+	check(12, result);
+	result = specialSum(10, 2, 6);
+	printf("Input submitted to the function: 10, 2, 6");
+	check(18, result);
+	printf("All Correct\n");
+	return 0;
+}
diff --git a/testapp/exam/c_cpp_files/main_within.cpp b/testapp/exam/c_cpp_files/main_within.cpp
new file mode 100755
index 0000000..50f9ad0
--- /dev/null
+++ b/testapp/exam/c_cpp_files/main_within.cpp
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+extern bool within(int, int, int);
+
+template <class T>
+
+void check(T expect, T result)
+{
+    if (expect == result)
+    {
+	printf("\nCorrect:\n Expected %d got %d \n",expect,result);
+    }
+    else 
+    {
+	printf("\nIncorrect:\n Expected %d got %d \n",expect,result);
+	exit (1);
+   }
+}
+
+int main(void)
+{
+	bool result;
+	result = within(12, 3, 20);
+	printf("Input submitted to the function: 12, 3, 20");
+	check(true, result);
+	result = within(12, 13, 20);
+	printf("Input submitted to the function: 12, 13, 20");
+	check(false, result);
+	result = within(29, 13, 120);
+	printf("Input submitted to the function: 29, 13, 120");
+	check(true, result);
+	result = within(12, 12, 20);
+	printf("Input submitted to the function: 12, 3, 20");
+	check(false, result);
+	printf("All Correct\n");
+	return 0;
+}