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st08-array-sol

# st08-array-sol - CSC 1111 Introduction to Computing using C...

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1 CSC 1111 Introduction to Computing using C++ Arrays (Self-test questions)

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2 Array Initialization int foo[10] = { 10, 9, 8, 7 }; int bar[] = { 1, 2, 3, 4 }; cout << foo [ 0 ] << endl; cout << foo [ 9 ] << endl; cout << bar [ 1 ] << endl; cout << foo [ bar [ 0 ] ] << endl; What's the size of foo[] and bar[] respectively? foo[] has 10 elements bar[] has 4 elements What's is the output? 10 0 2 9
3 Arrays as parameters string foo[1000]; bar(foo, 1000); Which of these definition of function bar() is syntactically correctly? A. void bar(string x[], int n) { … } B. void bar(string x[100], int n) { … } C. void bar(string x[1000], int m) { … } D. int bar(string x[], int foo) { … } Answer: A, B, C, D B, C: Array size (for 1-D array) in parameter is ignored by compiler. D: Return type and parameter list are independent of each other. bar() can return an integer but we do not always need to use the returned value.

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4 Arrays as parameters string foo[1000][20]; bar(foo, 1000); Which of these definition of function bar() is syntactically correctly? A. void bar(string x[][], int n) { … } B. void bar(string x[100][20], int n) { … } C.
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