Quiz 2 - CS110

What will be the output?

int i = 1;

int j = i--;

cout << "i is " << i;

cout << " and j is " << j;

• i is 1 and j is 1

• i is 1 and j is 0

• i is 0 and j is 1

• i is 0 and j is 0

Which of these data types requires the most amount of memory?

• short

• float

• int

• long

Which of these data types requires the most amount of memory?

• double

• long double

• short

• long

Solve the following problem

int X = 3;

int Y = x % 2 / 10+10 / 2

What does Y equal to?

• 3

• 1

• 5

• 6

• 8

is q6uub9TN a valid C++ Identifier?

• True

• False

What is a resonable constant value? (Choose 3)

• Pi

• Inflation

• Speed of light

• Gravity

• Gas prices

What header should be included to use advanced math functions?

• #include <c++math>

• #include <advmath>

• #include <cmath>

• #include <arithmathc>

Which header file should be included to use setprecision()?

• #include <iostream>

• #include <iomanip>

• #include <manipulator>

• #include <manipio>

What is the output?

float area = 2.4;

cout << "area";

cout << area;

• area3.5

• 3.53.5

• 3.5 3.5

• area 3.5

Which of the following statements is the same?

(A) x -= x + 4;

(B) x = x + 4 - x;

(C) x = x - (x + 4);

• A and B

• B and C

• C and A

• A and B and C