What is - while(scanf("%d %d",&n,&m)!=EOF) ?

lit-857

lit-857

@lit-857-hXUEGJ • Oct 26, 2024
wts EOF AND IS SCANF returen values?
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  • Whats In Name

    Whats In Name

    @whats-in-name-KdgM7o • Apr 11, 2013

    scanf returns the number of items assigned,EOF means end-of-file and has value -1,so this statement probably means run the loop 2 times.

    *Please correct me,if I am wrong
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  • rahul69

    rahul69

    @rahul69-97fAOs • Apr 11, 2013

    lit-857
    wts EOF AND IS SCANF returen values?
    This statement simply means keep on scanning the values of m and n until End of File is reached.
    Scanf returns number of variables scanned normally but it returns EOF if End of File is reached before variables could be scanned.😀
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  • Prateek Gupta

    Prateek Gupta

    @prateek-gupta-Vp5hwc • Apr 17, 2013

    scanf :- used to scan the values.
    EOF:- indicates the End Of File.
    != :- relational operator (not equal to)
    this can be understood like this :-
    keep scanning the values in variables n and m from the file until EOF has not been found.
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