Help with vector usage

This is a discussion on Help with vector usage within the C++ Programming forums, part of the General Programming Boards category; I'd like to define a vector that contains 5 vector s, and each of the 5 vectors should contain 5 ...

  1. #1
    C/C++Newbie Antigloss's Avatar
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    Help with vector usage

    I'd like to define a vector that contains 5 vectors, and each of the 5 vectors should contain 5 ints. But it cannot be done by using the following statement:

    vector< vector<int> > vec(5,5); // error!

    What can I do to define such a vector?

    Thank you in advance.
    Last edited by Antigloss; 06-21-2005 at 07:32 PM.

  2. #2
    Registered User
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    Interesting. I myself do not work with preinitialized vector within a vector. You could always manually construct the vectors.

    Kuphryn

  3. #3
    Skunkmeister Stoned_Coder's Avatar
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    Code:
    vector<vector<int> > vec(1,vector<int>(5,5));
    Last edited by Stoned_Coder; 06-21-2005 at 08:56 PM.
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

  4. #4
    C/C++Newbie Antigloss's Avatar
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    Thanks Stoned_Coder ^_^
    It works

  5. #5
    #include<xErath.h> xErath's Avatar
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    Quote Originally Posted by Stoned_Coder
    Code:
    vector<vector<int> > vec(1,vector<int>(5,5));
    that creates a vector that contains one vector that holds 5 ints with value 5

    here's the answer
    Code:
    vector<vector<int> > vec(5,vector<int>(5));
    almost there

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