Problem 1
Mark the following statements as true or false. a. \(A\) double type is an example of a simple data type. b. \(A\) one-dimensional array is an example of a structured data type. c. Arrays can be passed as parameters to a function either by value or by reference. d. A function can return a value of type array. e. The size of an array is determined at compile time. f. The only aggregate operations allowable on int arrays are the increment and decrement operations. g. Given the declaration: \(\ln t\) is [10] the statement: 11st \([5]=11\) st \([3]+11 s t[2]\) updates the content of the fifth component of the array list. h. If an array index goes out of bounds, the program always terminates in an error. i. In \(\mathrm{C}++,\) some aggregate operations are allowed for strings. I. The declaration: char name \([16]=\) wohn \(\mathrm{K}\). Miller" declares name to be an array of 15 characters because the string "John \(\mathrm{K}\). Miller" has only 14 characters. k. The declaration: char str = "Sunny Day" declares str to be a string of an unspecified length. I. As parameters, two-dimensional arrays are passed either by value or by reference.
Problem 2
Consider the following declaration: double passwords [100] In this declaration, identify the following: a. The array name. b. The array size. c. The data type of each array component. d. The range of values for the index of the array.
Problem 3
Identify error(s), if any, in the following array declarations. If a statement is incorrect, provide the correct statement. a. double weights[100]; b. int age[0..80]; c. string students[101]; d. int100 list[]; e. double[50] salaries; f. const double LENGTH = 30.00; double list[LENGTH]; g. const int SIZE = 100; int list[SIZE - 1];
Problem 4
Determine whether the following array declarations are valid. If a declaration is invalid, explain why. a. string employees[82]; b. int myArray[50; c. int SIZE; double list[SIZE]; d. int X = 50; double list[X - 60]; e. int ids[-30]; f. names string[10];
Problem 5
What would be a valid range for the index of an array of size 64?
Problem 6
Write C++ statements to do the following: a. Declare an array beta of 20 components of type double. b. Initialize each component of the array beta to 0. c. Output the value of the fifth component of the array beta. d. Set the value of the ninth component of the array beta to 70.50. e. Set the value of the twelth component of beta to four times the value of the eighth component of beta minus 15. f. Use a for loop to output the value of a component of beta if its index is a multiple of 3. g. Output the value of the last component of beta. h. Output the value of beta so that ten components per line are printed.
Problem 7
What is the output of the following program segment? double temp[5]; for (int i = 0; i < 5; i++) temp[i] = pow(i, 2.0) + 2; for (int i = 0; i < 5; i++) cout << temp[i] << " "; cout << endl; temp[0] = pow(temp[1], 3); temp[1] = temp[4] - temp[2]; temp[2] = temp[0] - 5; for (int i = 0; i < 5; i++) cout << temp[i] << " "; cout << endl;
Problem 8
What is stored in list after the following C++ code executes? int list[10]; for (int i = 0; i < 5; i++) { list[i] = i * i - 5; if (i % 3 == 0) list[i] = list[i] + i; else list[i] = list[i] - i; }
Problem 9
What is stored in list after the following C++ code executes? int list[10]; list[0] = 2; list[1] = 3; for (int i = 2; i < 10; i++) { list[i] = list[i - 1] + list[i - 2]; if (i > 7) list[i] = 2 * list[i] - list[i - 2]; }
Problem 10
What is stored in myList after the following C++ code executes? double myList[5]; myList[0] = 3.0; myList[1] = 4.0; for (int i = 2; i < 5; i++) { myList[i] = myList[i - 1] * myList[i - 2]; if (i > 3) myList[i] = myList[i] / 4; }
