Exam 5: Control Structures II Repetition

The number of iterations of a counter-controlled loop is known in advance.

In a(n) "____________________" problem, either the loop executes one too many or one too few times.

In ____ structures, the computer repeats particular statements a certain number of times depending on some condition(s).

In a sentinel-controlled while loop, the body of the loop continues to execute until the EOF symbol is read.

Assume all variables are properly declared. The output of the following C++ code is 2 3 4 5. n = 1; while (n < 5) { n++; cout << n << " "; }

Suppose j, sum, and num are int variables, and the input is 26 34 61 4 -1. What is the output of the code? sum = 0; cin >> num; for (int j = 1; j <= 4; j++) { $\quad$ sum = sum + num; $\quad$ xin >> num; } cout << sum << endl;

Consider the following code. (Assume that all variables are properly declared.) cin >> ch; While (cin) { cout << ch; cin >> ch; } This code is an example of a(n) ____ while loop.

Which executes first in a do...while loop?

The statement in the body of a while loop acts as a decision maker.

Assume that all variables are properly declared. The following for loop executes 20 times. for (i = 0; i <= 20; i++) cout << i;