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Type: Posts; User: AmadeusAD

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  1. Replies
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    Views
    1,753

    Re: Modular Arithmetic

    What exactly do you implement? Modular arithmetic covers a lot... Anything, somehow related to remainders and integer division...
    The signature (x op y) (mod N) means, in terms of C++, that ((x % N)...
  2. Replies
    3
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    1,619

    Re: Display Chinese Characters in c++

    Just a few tips:
    1) You have to use properly adjusted console to display Chinese. I.e., the corresponding fonts must be installed and displayed codepage should be also correct.
    2) You have to...
  3. Replies
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    1,682

    Re: Prime Numbers Help?

    Furthermore, you can replace ++i in both loops with i+=2 with some slight check adding outside the loop.
  4. Replies
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    Re: Prime Numbers Help?

    Not surprisingly that no numbers are displayed. Look at your condition - it is always false since i%n cannot be both i and 1 at the same time. Why do you still code that annoying i%n==1 check? What...
  5. Re: cant see what certain part of this code does..

    Hooooppssss... Just at a glance - this is not your code and it is, by the way, ill-formed C++ style mixed with C... All those questions you ask can, I suppose, find their answers in the low-level...
  6. Replies
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    1,682

    Re: Prime Numbers Help?

    Again, i % n == 1 is a check whether i is divided by n with remainder 1. That is not probably what you want. If you want to check whether i has a divider different from i and 1, then you should (in...
  7. Re: std::vector's push_back() segfaults - very weird

    In my original working code, I have the vector resized after reserve(), so all the elements before push_back() exist.
    About small compilable program - you know, I reproduced the same (I think so)...
  8. Replies
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    Re: Prime Numbers Help?

    You have also ill-formed logic for your task. Consider, that % operator returns the remainder, not the bool value 'divisable'. For determining whether i is divided by j, you have to determine whether...
  9. std::vector's push_back() segfaults - very weird

    Hi All,

    I have been persuaded for a long time that stl containers are the better choice compared to any home-cooked alternatives, partially, because experienced that in my own practice.
    One...
  10. Replies
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    Re: Multi-character characters?

    Why don't you try to experiment yourself writing something like


    #include <stdio.h>

    int main()
    {
    char t = '10'; // compiler probably will warn you, but compilation will not fail
    ...
  11. Replies
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    Re: Cleaner if statement

    And, by the way, your conditions will always be false due to incorrect usage of logical operation 'AND' (&&). You should use 'OR' (||) instead, since word[START] cannot be both, for instance, 'A' and...
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    650

    Re: Cleaner if statement

    int i =3;
    if (word[START] == 'a' && word[START] == 'e' && word[START] == 'i'
    && word[START] == 'o' && word[START] == 'u')
    int i = 1;
    else if(word [START] =='q' && word[START + 1] == 'u')
    ...
  13. Thread: #defines

    by AmadeusAD
    Replies
    25
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    1,874

    Re: #defines

    Maybe, your static library is compiled without _DEBUG defined? Try to recompile all the stuff of your project making sure _DEBUG is defined for each file. You can reach this by doing -D_DEBUG command...
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    815

    Re: Overloading based on l-value or r-value

    You cannot overload function just adding one or more 'const' specifiers anywhere.
    You can use just one int& f1() for both purposes I believe.
  15. Replies
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    Re: why i get these errors..

    I suppose scanf format string is not intended to be used as a regular expression, while in your example you do mix original format string specifiers with regexp literals. Are you sure "[^ ]" would...
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    541

    Re: New

    Discovered the above message after posting my one and page refresh:).
  17. Replies
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    Re: New

    endl declared inside std namespace. So, you should write


    using namespace std;

    int main()
    {
    ...
    }
  18. Re: I can't figure this out, can someone help me 'char' issues

    Also you may use switch to avoid multiplying the if-else tree (that is probably significant for a large number of various discrete variants):


    switch(gender)
    {
    case 'M':
    {
    // ... do...
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    Re: Fundamental question

    Oh, yeah, I saw this approach somewhere - good tricks for C-lovers:) and in general - useful for those who want to understand language constructs better.
    But you see, that's a kind of tricking,...
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    Re: Seg fault error

    At a first glance the following code runs into eyes:

    The arguments to scanf() functions that follow the format string specification are addresses of the vars where the input should be stored. In...
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    Re: Need help with bit algorithm!

    The idea probably is the same, just use appropriate string conversion function and/or format specifications, which recognizes hexadecimal letter-digits. No more info can be provided until you show us...
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    Re: Fundamental question

    Lindley gave complete answer. I'll just focus on conceptual difference - it's based upon the difference between those two languages. C and C++ are structural and object-oriented ones respectively....
  23. Re: BASH: read from end of file upwards

    That was Russian, you are right:)
    The question asks whether one can post in Russian on this forum. Nevermind;)
  24. Re: BASH: read from end of file upwards

    Sorry, I posted that occasionally, just for fun:)

    Actually, I like the process of spending hours solving a problem too, that brings a lot to one's qualification. And was trying to construct...
  25. Re: BASH: read from end of file upwards

    А на этом форуме пишут по-русски?)
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