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howard
297
exam_system/data/input/cpp/2025-10/cpp-easy-v1.json
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297
exam_system/data/input/cpp/2025-10/cpp-easy-v1.json
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{
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"examId": "cpp-easy-v1",
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"title": "C++ Fundamentals - Easy Level",
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"subject": "C++",
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"difficulty": "beginner",
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"durationMinutes": 40,
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"passingScore": 70,
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"sections": [
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{
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"id": "basics",
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"title": "C++ Basics & Syntax",
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"questions": [
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{
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"id": "q1",
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"type": "single_choice",
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"prompt": "What is the correct file extension for a C++ source file?",
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"choices": [
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{ "key": "A", "text": ".c" },
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{ "key": "B", "text": ".cpp" },
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{ "key": "C", "text": ".cxx" },
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{ "key": "D", "text": "Both B and C are correct" }
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],
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"answer": "D",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q2",
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"type": "true_false",
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"prompt": "In C++, every program must have a main() function.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q3",
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"type": "single_choice",
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"prompt": "Which header file is required to use cout in C++?",
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"choices": [
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{ "key": "A", "text": "#include <stdio.h>" },
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{ "key": "B", "text": "#include <iostream>" },
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{ "key": "C", "text": "#include <conio.h>" },
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{ "key": "D", "text": "#include <stream>" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q4",
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"type": "multiple_choices",
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"prompt": "Which of the following are valid C++ data types? (Select all that apply)",
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"choices": [
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{ "key": "A", "text": "int" },
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{ "key": "B", "text": "boolean" },
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{ "key": "C", "text": "float" },
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{ "key": "D", "text": "char" }
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],
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"answer": ["A", "C", "D"],
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"partialCredit": true,
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"allowIDK": true,
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"points": 10
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},
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{
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"id": "q5",
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"type": "true_false",
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"prompt": "C++ is case-sensitive, meaning 'Variable' and 'variable' are different identifiers.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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}
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]
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},
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{
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"id": "variables_operators",
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"title": "Variables & Operators",
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"questions": [
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{
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"id": "q6",
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"type": "single_choice",
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"prompt": "Which operator is used to assign a value to a variable in C++?",
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"choices": [
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{ "key": "A", "text": "==" },
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{ "key": "B", "text": "=" },
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{ "key": "C", "text": "===" },
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{ "key": "D", "text": ":=" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q7",
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"type": "multiple_choices",
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"prompt": "Which of the following are arithmetic operators in C++? (Select all that apply)",
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"choices": [
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{ "key": "A", "text": "+" },
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{ "key": "B", "text": "%" },
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{ "key": "C", "text": "&&" },
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{ "key": "D", "text": "*" }
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],
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"answer": ["A", "B", "D"],
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"partialCredit": true,
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"allowIDK": true,
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"points": 10
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},
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{
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"id": "q8",
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"type": "true_false",
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"prompt": "In C++, you must declare a variable before using it.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q9",
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"type": "single_choice",
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"prompt": "What is the result of: 10 % 3 in C++?",
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"choices": [
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{ "key": "A", "text": "3" },
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{ "key": "B", "text": "1" },
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{ "key": "C", "text": "3.33" },
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{ "key": "D", "text": "0" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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}
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]
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},
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{
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"id": "control_flow",
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"title": "Control Flow & Loops",
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"questions": [
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{
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"id": "q10",
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"type": "single_choice",
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"prompt": "Which keyword is used for conditional statements in C++?",
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"choices": [
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{ "key": "A", "text": "when" },
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{ "key": "B", "text": "if" },
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{ "key": "C", "text": "check" },
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{ "key": "D", "text": "condition" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q11",
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"type": "true_false",
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"prompt": "A 'while' loop checks the condition before executing the loop body.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q12",
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"type": "multiple_choices",
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"prompt": "Which are valid loop types in C++? (Select all that apply)",
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"choices": [
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{ "key": "A", "text": "for loop" },
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{ "key": "B", "text": "while loop" },
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{ "key": "C", "text": "do-while loop" },
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{ "key": "D", "text": "repeat-until loop" }
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],
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"answer": ["A", "B", "C"],
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"partialCredit": true,
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"allowIDK": true,
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"points": 10
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},
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{
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"id": "q13",
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"type": "single_choice",
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"prompt": "What does the 'break' statement do in a loop?",
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"choices": [
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{ "key": "A", "text": "Skips the current iteration" },
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{ "key": "B", "text": "Exits the loop completely" },
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{ "key": "C", "text": "Pauses the loop" },
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{ "key": "D", "text": "Restarts the loop" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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}
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]
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},
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{
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"id": "functions_arrays",
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"title": "Functions & Arrays",
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"questions": [
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{
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"id": "q14",
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"type": "true_false",
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"prompt": "A function in C++ can return only one value.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q15",
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"type": "single_choice",
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"prompt": "How do you declare a function that doesn't return any value?",
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"choices": [
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{ "key": "A", "text": "int functionName()" },
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{ "key": "B", "text": "void functionName()" },
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{ "key": "C", "text": "null functionName()" },
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{ "key": "D", "text": "empty functionName()" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q16",
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"type": "multiple_choices",
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"prompt": "Which statements about arrays in C++ are true? (Select all that apply)",
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"choices": [
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{ "key": "A", "text": "Array indices start at 0" },
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{ "key": "B", "text": "Arrays have fixed size once declared" },
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{ "key": "C", "text": "You can store different data types in the same array" },
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{ "key": "D", "text": "Arrays are stored in contiguous memory locations" }
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],
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"answer": ["A", "B", "D"],
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"partialCredit": true,
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"allowIDK": true,
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"points": 10
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},
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{
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"id": "q17",
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"type": "single_choice",
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"prompt": "What is the correct way to declare an integer array of size 5 in C++?",
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"choices": [
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{ "key": "A", "text": "int arr[5];" },
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{ "key": "B", "text": "array int arr[5];" },
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{ "key": "C", "text": "int[5] arr;" },
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{ "key": "D", "text": "int arr{5};" }
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],
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"answer": "A",
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"allowIDK": true,
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"points": 5
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}
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]
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},
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{
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"id": "pointers_basics",
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"title": "Pointers & References Basics",
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"questions": [
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{
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"id": "q18",
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"type": "true_false",
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"prompt": "A pointer stores the memory address of another variable.",
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"answer": true,
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q19",
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"type": "single_choice",
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"prompt": "Which operator is used to get the address of a variable?",
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"choices": [
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{ "key": "A", "text": "*" },
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{ "key": "B", "text": "&" },
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{ "key": "C", "text": "@" },
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{ "key": "D", "text": "#" }
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],
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"answer": "B",
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"allowIDK": true,
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"points": 5
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},
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{
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"id": "q20",
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"type": "multiple_choices",
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"prompt": "Which are true about references in C++? (Select all that apply)",
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"choices": [
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{ "key": "A", "text": "References must be initialized when declared" },
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{ "key": "B", "text": "References can be reassigned to refer to different variables" },
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{ "key": "C", "text": "References are aliases for existing variables" },
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{ "key": "D", "text": "References cannot be NULL" }
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],
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"answer": ["A", "C", "D"],
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"partialCredit": true,
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"allowIDK": true,
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"points": 10
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}
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]
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}
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],
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"metadata": {
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"version": "1.0.0",
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"createdAt": "2025-10-21T12:00:00Z",
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"createdBy": "system",
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"tags": ["cpp", "c++", "fundamentals", "beginner", "auto-graded"],
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"description": "Comprehensive C++ fundamentals exam covering basics, variables, operators, control flow, functions, arrays, and pointer basics."
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}
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}
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