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Thread: What is the C++ Implementation for This?

  1. #1
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    What is the C++ Implementation for This?

    I have a Windows text file with the following info inside it:

    25 05 38 26 53 04
    07 45 50 33 19 34
    55 25 21 30 09 39
    26 11 30 12 13 41
    32 23 44 11 50 39
    45 30 07 44 55 54
    21 10 35 46 48 27
    52 41 05 53 11 50
    40 38 17 43 10 54
    45 27 29 12 39 31
    24 42 38 02 18 09
    13 43 28 06 53 30
    45 47 29 30 53 13
    38 45 28 48 47 36
    25 34 18 06 07 55


    How can I code them to break that info apart into six columns and put each column into their own array? (Like in the image below...)

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  2. #2
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
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    Re: What is the C++ Implementation for This?

    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++20 Compiler: Microsoft VS2019 (16.9.3)

  3. #3
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
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    Re: What is the C++ Implementation for This?

    Possibly:

    Code:
    #include <fstream>
    #include <iostream>
    #include <vector>
    #include <iomanip>
    
    int main()
    {
    	std::ifstream ifs("numbers.txt");
    
    	if (!ifs)
    		return (std::cout << "Cannot open file\n"), 1;
    
    	std::vector<int> cols[6];
    
    	while (ifs)
    		for (size_t i = 0; i < 6; ++i) {
    			int n;
    
    			if (ifs >> n)
    				cols[i].push_back(n);
    		}
    
    
    	const size_t noel {cols[0].size()};
    
    	for (size_t c = 1; c <= 6; ++c)
    		std::cout << "[array" << c << "]  ";
    
    	std::cout << '\n';
    
    	for (size_t r = 0; r < noel; ++r) {
    		for (size_t c = 0; c < 6; ++c)
    			std::cout << "   " << std::setw(2) << std::setfill('0') << cols[c][r] << "     ";
    
    		std::cout << '\n';
    	}
    }
    Code:
    [array1]  [array2]  [array3]  [array4]  [array5]  [array6]
       25        05        38        26        53        04
       07        45        50        33        19        34
       55        25        21        30        09        39
       26        11        30        12        13        41
       32        23        44        11        50        39
       45        30        07        44        55        54
       21        10        35        46        48        27
       52        41        05        53        11        50
       40        38        17        43        10        54
       45        27        29        12        39        31
       24        42        38        02        18        09
       13        43        28        06        53        30
       45        47        29        30        53        13
       38        45        28        48        47        36
       25        34        18        06        07        55
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++20 Compiler: Microsoft VS2019 (16.9.3)

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