update,

marissa.sam/_prompts/step2/prompt.md

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+write some cpp functions:
+
+```
+Add marks record
+Delete marks record
+Edit marks record
+Print current marks record in system
+
+press E to exit
+```
+
+if the user entered 1, the run `functionAdd` so on and forth
+
+```cpp
+#include <iostream>
+
+void print_menu() {
+    std::cout << "Mark Record System\n";
+    std::cout << "-----------------\n";
+    std::cout << "1. Add marks record\n";
+    std::cout << "2. Delete marks record\n";
+    std::cout << "3. Edit marks record\n";
+    std::cout << "4. Print current marks record in system\n";
+    std::cout << "E. Exit\n";
+    std::cout << "Enter your choice: ";
+}
+```
+
+write a cpp function that print the above menu
+
+The system can calculates the overall grade of each student.
+User can add, edit and delete the record to the system manually or upload a file.
+The system should have a counter to check how many records are update on each time.
+User can generate report and the report should be able to download.
+
+using cpp, write a console program that accepts user input name, maths marks, chinese marks, english marks and grade,
+print them out when the user input done
+
+
+