Question on Homework

This is a discussion on Question on Homework within the C Programming forums, part of the General Programming Boards category; how would I store a random number generator into the array? Code: #include <stdio.h> #include <conio.h> #define MAX_SIZE 100//part 2 ...

  1. #1
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    Question on Homework

    how would I store a random number generator into the array?

    Code:
    #include <stdio.h>
    #include <conio.h>
    #define MAX_SIZE 100//part 2
    int main(void)
    
    
    
    //Declaring Statements
    {
        int i;
        int list[MAX_SIZE]={i};//part 2
        int numPrinted=0;//part 2
        srand (time(NULL));
    {
        printf("Numbers Unsorted:\n");
    }
    
        while(i<100)
        for (i=0;i<MAX_SIZE; i++)
        {
    
            printf("%3d, %3d", rand()%1000, list[i]);
            if (numPrinted <9)
                numPrinted++;
            else
                {
            printf("\n");
            numPrinted=0;
            }
    
    
        }
    
    
        return 0;
    
    }
    because if i tried to implement the random number generator to store into the array, the output would keep resulting in printing out 1 number. my goal is to print out 100 random numbers and store them while still having the out put to have at least 10 numbers per line.

    for example: when i put in for(i=0; i<100; i++)
    list[MAX_SIZE]=rand()%1000;

  2. #2
    SAMARAS std10093's Avatar
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    try
    Code:
    list[i]
    You must read again the theory for array's indexing (if not the whole chapter)!

    //A bit advanced (first focus on the indexing of the arrays!), the result of rand is pseudorandom.. More.
    Code - functions and small libraries I use


    It’s 2014 and I still use printf() for debugging.


    "Programs must be written for people to read, and only incidentally for machines to execute. " —Harold Abelson

  3. #3
    Master Apprentice phantomotap's Avatar
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    O_o

    C and C++ don't have the declarative power for that style of approach to work.

    They are both, at the core, simple procedural languages.

    Simply put, you've not "told" the program to store the random values in the array so it, very naturally, does not store the values into the array.

    [Edit]
    Also, your indenting is atrocious and inconsistent. Fix it.
    [/Edit]

    [Edit]
    You must read again the theory for array's indexing (if not the whole chapter)!
    That certainly would not be a bad idea, but I'm compelled, by nearly infinite curiosity this time, to ask: what are you referring to? The indexing is the one thing he seems to have right.
    [/Edit]

    Soma
    Last edited by phantomotap; 04-22-2013 at 07:02 PM.

  4. #4
    SAMARAS std10093's Avatar
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    At this line
    Code:
    list[MAX_SIZE]=rand()%1000;
    he or she has it outside code tags.
    Code - functions and small libraries I use


    It’s 2014 and I still use printf() for debugging.


    "Programs must be written for people to read, and only incidentally for machines to execute. " —Harold Abelson

  5. #5
    Master Apprentice phantomotap's Avatar
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    he or she has it outside code tags
    O_o

    Ah, well, there's my problem; I was looking all over the code! ^_^;

    Soma

  6. #6
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    appreciate the critism and the opinions will apply it thanks

  7. #7
    Algorithm Dissector iMalc's Avatar
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    Line 22, you have both the thing you want to assign and the thing you want to assign it to right there inside the printf.
    Take those bits, and make use of the assignment operator, and you're away laughing!
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    C++ Witch laserlight's Avatar
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    There appears to be a parallel discussion with an equally generic topic name: Question Need Help:
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