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WorksheetsQuiz 8: Arrays&Vector
Total questions: 10
Worksheet time: 6mins
Declare a string array "score" that has 57 elements.
(a)
Given the following For loop, what is the appropriate declaration for the integer array "matrix"?
for (n = 0; n <= 81; n++)
cout << matrix[n];
int matrix[80];
int matrix[82];
int matrix[79];
int matrix[81];
Given the following declarations, which of the following computes the sum of all the elements in "beta"?
int beta[24];
int sum= 0;
for (index=1; index <= 24; index++)
sum = sum+ beta[index];
for (index=0; index < 24; index++)
sum = sum+ beta[index];
for (index=0; index < 24; index++)
sum = sum+ beta;
for (index=1; index <= 24; index++)
sum = sum+ beta;
Given the following function prototype and the array declaration:
float ComputeSomething (short[], int );
short beta[39];
which of the following is the activation statement that calls the function "ComputeSomething" with the array "beta" and prints the returned value?
cout << ComputeSomething(beta, 39);
ComputeSomething(beta, 39);
ComputeSomething(beta[39], 39);
cout << ComputeSomething(beta[39], 39);
The following program code is the function definition of PrintArray which prints an array of double type with "sizeOfArray" elements.
void PrintArray( _________________________)
{
for (int i=0; i< sizeOfArray; i++)
cout << i << gamma[i] << endl;
}
Which of the following is the correct choice for the blank?
gamma[], sizeOfArray
int gamma[], int sizeOfArray
double gamma[], int sizeOfArray
double gamma, int sizeOfArray
Declare an integer array "matrix" that is a two-dimensional array of 91 rows and 25 columns.
(a)
Which of the following is the correct function prototype for a void function named DisplayThis that has three parameters where the first parameter is a two-dimensional array and the rest are integers?
void DisplayThis ( double [5 ][10], int, int )
void DisplayThis ( double [10][ ], int, int )
void DisplayThis ( double [10], int, int );
void DisplayThis ( double [ ][10], int, int );
Given the following function prototype and the array declaration:
float SumOfArr ( float anArray[ ][45], int rowSize, int colSize);
float arr[90][45];
which of the following is the activation statement that calls the function "SumOfArr" with the array "arr" and prints the returned value?
cout << SumOfArr(arr, 90, 45);
cout << SumOfArr(arr[90][45]);
SumOfArr(arr[ ][45], 90, 45);
cout << SumOfArr(arr[90][45], 90, 45);
Which of the following C++ statements adds a new element to the end of the vector Scores?
cores.push(score);
Scores.push_back(score);
Scores.at(score);
Scores.begin(score);
Given the following vector in C++, how would you access the seventh element within the vector:
vector <int> ages;
cout << ages[7] << endl;
cout << ages.begin(7) << endl;
cout << ages.at(7) << endl;
cout << ages.at(6) << endl;
