Answer:
Stack
Explanation:
Any function that call itself can be regarded as recursive function, it should be noted that Recursion is a natural use for a stack, especially in the area of book keeping.
 Recursion is very important because some of problems are usually recursive in nature such as Graph and others, and when dealing with recursion , only base and recursive case is needed to be defined.
 Some areas where recursion is used are in sorting and searching.
 
        
             
        
        
        
Answer:
Usually, Google Docs save automatically. If you remember some keywords that you typed, try searching for it. For example, if you typed up a report about dogs, search "dogs" when you're on the Google Docs home screen. 
Explanation:
If this doesn't help, leave a comment and I'll try to help more!
 
        
                    
             
        
        
        
Answer:
if(y==10)
{
      x=0;   // assigning 0 to x if y equals 10.
}
else
{
    x=1;   // assigning 1 to x otherwise.
}
Explanation:
In the if statement i have used equal operator == which returns true if value to it's right is equal to value to it's left otherwise false.By using this operator checking value of y and if it is 10 assigning 0 to x and if it is false assigning 1 to x.
 
        
             
        
        
        
<h3>Master File :-</h3>
- Master files contain descriptive data, such as name and address, as well as summary information, such as amount due and year-to-date sales. 
<h3>Transaction File :-</h3>
- Fast performance with a rapid response is critical. Organisations rely heavily on their TPS with failure possibly stopping business.
<h3>Reference File :-</h3>
- Information in one drawing can be overlaid on a different drawing, eliminating the need to redraw information. 
- Proper use of reference files will result in significant time savings and greater coordination of drawings.
Explanation:
<h3>Hope it helps you!</h3>