How do I read input and write to output?

[Guest]

Can somebody tell me how to read input data and write results to output?

[Adrian_Kosowski]

Can somebody tell me how to read input data and write results to output?

Use standard input and standard output. These file streams can be accessed as the "default" for reading and writing in many languages. So, you can use e.g. scanf/printf in C, read/write without a filename in pascal, etc. See the Languages section of the forum for examples of how to solve problem TEST in different programming languages.

[shumphreys]

OK, but I am new to these online judges e.g the TEST program .... if the Input example is:
1
2
88
42
99

and output:
1
2
88
42

Does that mean the user enters all the Inputs and THEN the output is processed or can it be taken that user enters '1', '1' is output; users enters '2', '2' is output ... etc..?

[nneonneo]

Whichever one is easier (though the latter is usually preferred).

Check the TEST solutions in each of the programming fora (like https://www.spoj.pl/forum/viewtopic.php?t=49 for example) for some ideas on the input/output methods in each language.