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PROBLEM SOLVING AND PYTHON PROGRAMMING QUIZ

1) What is the first step in problem-solving? A) Writing code B) Debugging C) Understanding the problem D) Optimizing the solution Answer: C 2) Which of these is not a step in the problem-solving process? A) Algorithm development B) Problem analysis C) Random guessing D) Testing and debugging Answer: C 3) What is an algorithm? A) A high-level programming language B) A step-by-step procedure to solve a problem C) A flowchart D) A data structure Answer: B 4) Which of these is the simplest data structure for representing a sequence of elements? A) Dictionary B) List C) Set D) Tuple Answer: B 5) What does a flowchart represent? A) Errors in a program B) A graphical representation of an algorithm C) The final solution to a problem D) A set of Python modules Answer: B 6) What is pseudocode? A) Code written in Python B) Fake code written for fun C) An informal high-level description of an algorithm D) A tool for testing code Answer: C 7) Which of the following tools is NOT commonly used in pr...

Basic data types

BASIC DATA TYPES
Data type defines the group of values that a data item can take and the operations that can be performed on the item. C language provides four basic data types. Below table lists the data types, their size, range, and usage for a C programmer.
The char data type is of one byte and is used to store single characters. Note that C does not give any data type for storing text. This is because text is made up of individual characters.You might have been surprised to see that the range of char is given as –128 to 127. char is used to store characters not numbers, so why this range? The answer is that in the memory, characters are stored in the form of ASCII codes. For example, the character ‘A’ has the ASCII code of value 65. In memory we will not store ‘A’ but stored as 65 (in binary number format). 

Table: Basic data types in c
In addition, C also supports four modifiers two sign specifiers (signed andunsigned) and two size specifiers (short and long). Table below shows the variants of basic data types.
Table: Basic data types and their variants
While the smaller data types take less memory, the larger data types incur a performance penalty. Although the data type we use for our variables does not have a big impact on the speed or memory usage of the application, we should always try to use int unless there is a need to use 
any other data type.

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