Laboratory 3: 

1. vectors

There are many similarities between arrays and vectors, but there are also some significant differences. Arrays are lower-level abstraction than vectors, so they are less convenient. An array cannot be resized. These limits make arrays more cumbersome to use than vectors.
Vectors are a recent addition to C++. Arrays are faster and more efficient than vectors.

Goals: 
1.To become familiar with using vectors.
2.To be able to access vector elements and resize vector.
3.To be able to pass vectors to functions

• Example 1:  work with vectors
  Sample 1-1: Computes the average of a vector of floating-point values
  average.cpp
  Sample 1-2: Raise all values in a vector by a given percentage
  raisesal.cpp
  
  Exercise 1-1: Returns all values within a range
  between.cpp (solution)
  Exercise 1-2: Returns the position of all values within a range
  matches.cpp (solution)
  
  
• Example 2: Removing and Inserting elements
  Sample 2-1: Removes an element from an unordered vector
  erase1.cpp
  
  Exercise 2-1: Inserts an element into a vector
  insert.cpp (solution)
  
• Example 3: Parallel Vectors
  bestval1.cpp
  
  Exercise 3-2: Returns the position of all values within a range
  bestval2.cpp (optional)
  

2. Functions

Goals: 
1. To be able to program functions and procedures
2. To become familiar with the concept of parameter passing
3. To recognize when to use value and reference parameters

• Example 1:  Variable Scope and Global Variables
  Sample 1-1: local variables
  local.cpp
  Sample 1-2: global variables
  global.cpp
  
  
• Example 2:  
  Sample 2-1: Print an object of type time in the format h:mm:ss
  ccc_time.h
  ccc_time.cpp
  printime.cpp
  
  
• Example 3:
  Sample 3-1:  overloaded1
  overloaded1.cpp
  Sample 3-2:  overloaded2
  overloaded2.cpp
  
  
• Example 4: 
  Exercise 4-1: Turns a digit into its English name
  intname.cpp (solution)