Assume numbers is a vector that contains these integers: 2 4 6 8 10 Then the following code executes: numbers.resize (9) ; numbers.resize (11, 5) ; What does the vector contain now? 11 11 11 11 11 0 0 0 0 2 4 6 8 10 0 0 0 0 2 4 6 8 10 5 5 2 4 6 8 10 0 0 0 0 11 11 11 11 11 5 5 0 0 0 0 2 4 6 8 10 O 2 4 6 8 1o 0 0 0 0 5 5 Assume vec1 is a vector that contains these integers: 10 20 30 40 50 60 70 80 90 100 And vec2 is a vector that contains these integers: 3 6 9 12 15 Then the following code executes: vec1.resize (7) ; vec1.swap (vec2) ; What do the vectors contain now? vec1 contains 3 6 9 12 15 vec2 contains 10 20 30 40 50 60 70 vec1 contains 3 6 9 12 15 0 0 vec2 contains 10 20 30 40 50 60 70 vec1 contains 3 6 9 12 15 vec2 contains 50 60 70 80 90 100 vec1 contains 0 0 3 6 9 12 15 vec2 contains 50 60 70 80 90 100 This code creates a compiler error.
Assume numbers is a vector that contains these integers: 2 4 6 8 10 Then the following code executes: numbers.resize (9) ; numbers.resize (11, 5) ; What does the vector contain now? 11 11 11 11 11 0 0 0 0 2 4 6 8 10 0 0 0 0 2 4 6 8 10 5 5 2 4 6 8 10 0 0 0 0 11 11 11 11 11 5 5 0 0 0 0 2 4 6 8 10 O 2 4 6 8 1o 0 0 0 0 5 5 Assume vec1 is a vector that contains these integers: 10 20 30 40 50 60 70 80 90 100 And vec2 is a vector that contains these integers: 3 6 9 12 15 Then the following code executes: vec1.resize (7) ; vec1.swap (vec2) ; What do the vectors contain now? vec1 contains 3 6 9 12 15 vec2 contains 10 20 30 40 50 60 70 vec1 contains 3 6 9 12 15 0 0 vec2 contains 10 20 30 40 50 60 70 vec1 contains 3 6 9 12 15 vec2 contains 50 60 70 80 90 100 vec1 contains 0 0 3 6 9 12 15 vec2 contains 50 60 70 80 90 100 This code creates a compiler error.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question

Transcribed Image Text:### Vector Resizing and Swapping Example
#### Example 1: Resizing a Vector
Assume `numbers` is a vector that contains these integers:
```
2 4 6 8 10
```
The following code executes:
```cpp
numbers.resize(9);
numbers.resize(11, 5);
```
What does the vector contain now?
- Option 1: `11 11 11 11 11 0 0 2 4 6 8 10`
- Option 2: `0 0 0 0 2 4 6 8 10 5 5`
- Option 3: `2 4 6 8 10 0 0 0 11 11 11`
- Option 4: `5 5 0 0 2 4 6 8 10`
- Option 5: `2 4 6 8 10 0 0 0 0 5 5`
#### Example 2: Resizing and Swapping Vectors
Assume `vec1` is a vector that contains these integers:
```
10 20 30 40 50 60 70 80 90 100
```
And `vec2` is a vector that contains these integers:
```
3 6 9 12 15
```
The following code executes:
```cpp
vec1.resize(7);
vec1.swap(vec2);
```
What do the vectors contain now?
- Option 1:
- `vec1` contains `3 6 9 12 15`
- `vec2` contains `10 20 30 40 50 60 70`
- Option 2:
- `vec1` contains `10 20 30 40 50 60 70`
- `vec2` contains `3 6 9 12 15`
- Option 3:
- `vec1` contains `3 6 9 12 15 0 0`
- `vec2` contains `10 20 30 40 50 60 70`
- Option 4:
- `vec1` contains `3 6 9 12 15`
- `vec2` contains `50 60 70 80
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