Is a program design aid that serves the function of a flowchart in expressing the detailed logic of a program.

A flowchart is a diagrammatic representation for the program. Any lay-man can understand flowchart easily.

It is not necessary that only programmers should use flowchart.

Flow chart can be used for any kind of problem to be solved diagrammatically. It consists of certain shapes which represents an action.

A Oval symbol represents “Start and Stop”

A diamond symbol represents “Decision making”

A Parallelogram represents “Input and Output”

A rectangle represents “Processing”

An Arrow represent “Flow”. "

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the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.