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CS151 # Module 1 - Solved
Course Introduction
## Project 1 - Use a vector to sort numbers (10 points)
The purpose of this project is to generate thirty random whole numbers between 1 and 10, insert them into a vector in *descending* order, then and print the numbers in *ascendin*g order:
Use the following plan of attack:
1. Create an empty vector of **int** elements.
2. Use the **srand** function to change the "seed" for generating random numbers so that the **rand** function will generate a *different* set of random numbers every time your program is run.
3. Use the **rand** function to generate a random number whole number between 0 and **RAND_MAX** (using Dev-C++, **RAND_MAX** is 32,767).
4. Convert this number into a number between 1 and 10.
- *hint:* use the **%** operator.
5. Use a loop to **scan** the vector until you find the position of an element containing a number that is less than the random number just generated above.
6. Use an iterator to *insert* the random number into the vector at that position.
7. Go back to step 3 and perform again until the vector contains 30 random numbers
8. After all 30 numbers have been generated and inserted into the vector, they should appear in *descending* order in the vector.
9. Use the **pop_back** function in a loop to print the numbers in *ascending* order on the console until the vector is empty.
## Project 2 - Use a vector to sort countries by area (15 points)
Below is a list of the 14 countries in South America, including their population and area:
| Name | Population (in 1,000's) | Area (sq. miles) |
| :--------------: | :---------------------: | :--------------: |
| Argentina | 45,258 | 1,073,234 |
| Bolivia | 11,696 | 424,052 |
| Brazil | 212,845 | 3,287,086 |
| Chile | 19,206 | 291,855 |
| Columbia | 51,115 | 440,715 |
| Ecuador | 17,705 | 106,851 |
| Falkland Islands | 3 | 4,700 |
| French Guiana | 290 | 32,253 |
| Guyana | 787 | 82,978 |
| Paraguay | 7,145 | 157,056 |
| Peru | 33,108 | 496,093 |
| Suriname | 586 | 63,252 |
| Uruguay | 3,475 | 68,037 |
| Venezuela | 28,102 | 353,748 |
Create a class called **Country**.
- The properties (variables) of each country will be its name, population, and area.
- Put the definitions of those properties and prototypes of functions in a header file with a guard.
- Put the function definitions in a .cpp file.
- Functions should include a constructor and "getters" for each property of the class.
Then, similar to what you did in project 1:
1. Create an empty vector of **Country** elements (make this a global variable).
2. In main, in alphabetic order, create a **Country** object for each of the countries in South America.
- as each is created insert it into the vector in *ascending* order based on the country's area.
- consider writing a function which takes a **Country** object and inserts it into the vector in the appropriate spot in the vector.
3. Once the vector is filled, print a report showing each country.
- At the top of the report, put headings at the top of each column.
- Do *not* use **pop_back**. Instead, simply use a loop to access and print the values of each country in the vector, starting with element #0.
4. Inside the loop, use the **cout** object to align columns:
- The name of the country should be left-aligned (padded to the right)
- The population and area should be right-aligned (padded to the left)
5. The first part of your report might look like the following:
```
Country Population Area
---------------- ---------- ----------
Falkland Islands 3 4700
French Guiana 290 32253
Suriname 586 63252
Uruguay 3475 68037
Guyana 787 82978
Ecuador 17705 106851
. . . . . . . .
```
6. After all countries have been printed, show totals for the population and area columns.
