Planning a Solution

 Unit # 01    

Planning a solution:

Some strategies are.

1. Divide & conquer: It divides a complex problem into smaller problems.
2. Guess, check & improve: The designer guesses a solution to a problem & then checks the correctness of the solution.
3. Act it out: The designer defines the list of "to-do" tasks. Afterwards he/she performs a task.
4. Prototype (Draw): This technique draws a pictorial representation of the solution. It is not the final solution, however, it may help designer to understand the components of the solution.

• The selection of a strategy depends upon the nature of the problem.
• Candid Solutions:
• Candid⇾ Refers ⇾Unplanned
• Example: If you are asked to find number of students in your school who can play cricket.
• Candid Solution: 

You can estimate by finding cricket players in your class & then multiplying it by the total number of classes in your school.

(Cricket players in your class) X (Total numbers of classes in school)

• For exact solutions: You have to visit each class or getting data from teachers.
•  Selecting the Best Solution: 
• Example: Assume that names of all the students in your school are available on a website & you are asked to search a name.
• Possible Solutions:

1. Look at each name on the website one by one until the name is found or list is over.
2. Take printouts & search required name.
3. Copy names, put them in Excel sheet & sort them in alphabetical order.
4. Press Ctrl+F, when the list is in a browser. You can type the name to search automatically.