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Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

 

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Please note reading occurs conditionally, then we may not suppose the input should be already provided.

Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Please note reading occurs conditionally, then we may not suppose the input should be already provided.

Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Please note reading occurs conditionally, then we may not suppose it should be already provided.

Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Please note reading occurs conditionally, then we may not suppose the input should be already provided.

Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Based on this definition of algorithm from Wikipedia:

In mathematics and computer science, an algorithm is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation, data processing, and automated reasoning.

An algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and initial input (perhaps empty), the instructions describe a computation that, when executed, proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state.

Is "Wait for user input" or simply read() counted an step of algorithm?

I thought for the following reasons it may not fit in the definition:

• It seems it's not an step which can be executed as an operation is executed.
• It should wait for an external signal to get finished, it could be against of the self-contained in the definition.
• Moreover the definition talks about an initial input, so I suppose the input should be already provided.

Am I correct?

Update: If it's not an step, then how would you represent the following sequence, is it an algorithm?

• X = 5
• Y = X + 4
• if ( Y > 10) Z = Read() // get the user input
• else Z = 1
• if (Z > 2) Z = Z + X

Please note reading occurs conditionally, then we may not suppose it should be already provided.