2.15. Mixed-Up Code Exercises¶

Answer the following Mixed-Up Code questions to assess what you have learned in this chapter.

Construct a block of code that prints: "Lions &" one the first line, "Tigers & Bears!" on the second line, and "Oh my!" on the FOURTH line.

```
cout << " Bears!" << '\n';
```
```
cout << "Bears!" << '\n';
```
```
cout << "Lions &" << '\n';
```
```
cout << "Lions &";
```
```
cout << "Oh my!";
```
```
cout << "Tigers &" << '\n';
```
```
cout << "Tigers &";
```
```
cout << '\n';
```
```
int main() {
```
```
}
```

Construct a block of code that swaps the value of integers x and y, which have values 3 and 6, respectively.

```
int main() {
```
```
int temp = x;
```
```
int x = 3 #distractor
int y = 6
```
```
int x;
int y;
```
```
x = 3;
y = 6;
```
```
x = y;
y = temp;
```
```
x = y; #distractor
y = x;
```
```
}
```

Dan Humphrey is a 3.98 student at Constance High School. His crush's first initial is S. Construct a program that assigns the variables name, GPA, and crush, in that order.

```
char crush = 'S';
```
```
char crush = 'S';
```
```
double GPA;
GPA = 3.98;
```
```
int GPA = 3.98;
```
```
int main() {
```
```
string name = "Dan Humphrey";
```
```
string name;
name = Dan Humphrey;
```
```
}
```

You decide to make homemade Mac 'n' Cheese for you and your roomates. Whoever wrote the recipe wanted to make things hard for you by stating that it calls for 1% of a gallon of milk. Construct a block of code that converts this to tablespoons.

```
double cups = 16 * gallons;
```
```
double cups;
16 * gallons = cups;
```
```
double gallons = 0.01
```
```
double gallons = 0.01;
```
```
double tbsp = 16 * cups
```
```
double tbsp;
tbsp = 16 * cups;
```
```
int main() {
```
```
}
```

Construct a block of code that takes the volume of the rectangular prism defined by length, width, and height and prints the result to the terminal.

```
cout << volume;
```

int length = 2;
int width = 3;
int height = 4;

```
int main() {
```

int volume = length * width * height #distractor

```
int volume;
```
```
length = 2;
width = 3;
height = 4;
```
```
print (volume) #distractor
```
```
volume = height * width * length;
```
```
}
```

Construct a block of code that changes the value of the variable a from the character 'a' to the character 'z'.

```
a = a + 25;
```
```
a = a + 26;
```
```
a = a + 27;
```
```
char a = 'a';
```
```
char a = 'a';
```
```
int main() {
```
```
}
```

Construct a block of code that outputs the volume of a cylinder with a radius of 3 and a height of 4. There are many ways to do this using the choices below, but only the correct answer that uses the LEAST lines of code will be accepted.

```
base = 3.14 * 3 * 3; #distractor
```
```
base = 3.14 * 3 ^ 2; #distractor
```
```
cout << 3.14 * 3 * 3 * 4;
```
```
cout << 3.14 * 3 ^ 2 * 4; #distractor
```
```
cout << base * height; #distractor
```
```
cout << volume; #distractor
```
```
height = 4; #distractor
```
```
int main() {
```
```
volume = base * height; #distractor
```
```
}
```

Construct a block of code that prints "My favorite class is MATH" on the same line.

cout << "My favorite class is " << '\n';
cout << favorite;

cout << "My favorite class is ";
cout << favorite;

cout << "My favorite class is" << favorite;

```
int main() {
```
```
string favorite = "MATH";
```
```
string favorite = 'MATH';
```
```
}
```

It's Black Friday and the Nintendo Switch you've been saving up for is marked down to 60% of its original price! Construct a block of code that calculates how much money you'd be saving if the system originally cost $359.99?

```
double discount = game * 0.60;
```
```
double discount = game - (0.60 * game);
```
```
double game = $359.99;
```
```
double game = 359.99;
```
```
double saved = discount;
```
```
double saved = game + discount;
```
```
double saved = game - discount;
```
```
int main() {
```
```
}
```

Q10

Your family just bought a dog and everyone has been fighting over what to name it. It went from Champ to Copper to Higgins, and after a few days of being Higgins, everyone agreed on Buddy. Construct a block of code that illustrates this concept.

```
int main() {
```
```
name = "Buddy"
```
```
name = "Buddy";
```
```
name = "Copper";
```
```
string name = "Champ";
```
```
string name = "Copper";
```
```
string name = "Higgins";
```
```
string name = 'Champ';
```

string new_name = "Higgins";
name = new_name;

```
}
```

Q11

Construct a block of code that prints the remainder of 18 when divided by 13.

```
cout << x % y;
```
```
cout << y % x;
```
```
cout << y / x;
```
```
int main () {
```
```
int x = 18;
int y = 13;
```
```
}
```