Input help needed

This is a discussion on Input help needed within the C Programming forums, part of the General Programming Boards category; ok i'm trying to input the following input into my program: Code: 4 6 Ryan 4 Peter 5 Harold 2 ...

  1. #1
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    Input help needed

    ok i'm trying to input the following input into my program:

    Code:
    4 6
    Ryan 4
    Peter 5
    Harold 2
    John 9
    Carlos 1
    Terry 7
    end
    the first two are for this array but the problem is i dont know how to input "Ryan" "Peter" and stuff by having the first letter of the name stored in an array[1] and the number afterwards stored in array2[1]. It should stop scanning in numbers once the user types in "end". Here's the code i have right now but its a lil funky and does not work:

    Code:
    #include <stdio.h>
    
    main()
    {
         char board[30][30];
         int b_rows, b_cols;
         char gem[27];
         int gem_value[27];
         char c;
         int rows, cols, num=0;
    
         scanf("%d%d", &b_rows, &b_cols);
         printf("Rows = %d Cols = %d\n", b_rows, b_cols);
    
         for(rows=0; rows<b_rows; rows++)
           for(cols=0; cols<b_cols; cols++)
             board[rows][cols] = '.';
    
    rows=0;
    while(rows<27)
      {
          scanf("%c", &gem[rows]);
          if(gem[rows] != 'e')
            scanf("%d", &gem_value[rows]);
          rows++;
      }
    
         for(rows=0; rows<27; rows++)
           printf("Gem Name: %c Gem Value: %d\n", gem[rows], gem_value[rows]);
    and here's the output with the input from above:

    Code:
    4 6
    Rows = 4 Cols = 6
    Ryan 4
    Peter 5
    Harold 2
    John 9
    Carlos 1
    Gem Name:
     Gem Value: -688123
    Gem Name: R Gem Value: -688123
    Gem Name: y Gem Value: -688123
    Gem Name: a Gem Value: -688123
    Gem Name: n Gem Value: 4
    Gem Name:
     Gem Value: -688123
    Gem Name: P Gem Value: -688123
    Gem Name: e Gem Value: -688123
    Gem Name: t Gem Value: -688123
    Gem Name: e Gem Value: -688123
    Gem Name: r Gem Value: 5
    Gem Name:
     Gem Value: -688123
    Gem Name: H Gem Value: -688123
    Gem Name: a Gem Value: -688123
    Gem Name: r Gem Value: -688123
    Gem Name: o Gem Value: -688123
    Gem Name: l Gem Value: -688123
    Gem Name: d Gem Value: 2
    Gem Name:
     Gem Value: -688123
    Gem Name: J Gem Value: -688123
    Gem Name: o Gem Value: -688123
    Gem Name: h Gem Value: -688123
    Gem Name: n Gem Value: 9
    Gem Name:
     Gem Value: -688123
    Gem Name: C Gem Value: -688123
    Gem Name: a Gem Value: -688123
    Gem Name: r Gem Value: -688123
    can anyone give me some hints or tips on how to make this work? any help would be much appreciated thanks!

  2. #2
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    is there a way to store just the first letter of the name in the first array and then the number in the second without using strings? Again i only need to store the first letter in the array not the whole name. Thanks

  3. #3
    End Of Line Hammer's Avatar
    Join Date
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    6,231
    Originally posted by blindleaf
    is there a way to store just the first letter of the name in the first array and then the number in the second without using strings? Again i only need to store the first letter in the array not the whole name. Thanks
    As you need to check the input against the word "end", you'd probably be best of by reading into a temporary array, doing that check, then assigning the first element of the input array to the store array.

    >>array[0] = input[0];
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  4. #4
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    ahhh i still can't figure this out here's what i have now, but its basically doing the same thing can anyone help?

    Code:
    main()
    {
         char board[30][30];
         int b_rows, b_cols;
         char gem[27], temp[27];
         int gem_value[27];
         char c;
         int rows, cols, num=0, index=0;;
    
         scanf("%d%d", &b_rows, &b_cols);
         printf("Rows = %d Cols = %d\n", b_rows, b_cols);
    
         for(rows=0; rows<b_rows; rows++)
           for(cols=0; cols<b_cols; cols++)
             board[rows][cols] = '.';
    
    rows=0;
    while(num == 0)
      {
        scanf("%c%d", &gem[rows], &gem_value[rows]);
        for(index=rows; index<rows+4; index++)
          temp[index] = gem[index];
        if(temp[rows] == 'e')
            num = 1;
        else
            gem[rows] = temp[rows];
        rows++;
      }
    
    for(rows=0; rows<27; rows++)
           printf("Gem Name: %c Gem Value: %d\n", gem[rows], gem_value[rows]);

  5. #5
    Casual Visitor
    Join Date
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    Posts
    350
    index = 0;

    loop
    {
    fgets(temp, sizeof(temp), stdin);
    /* other operations */
    gem[index++] = temp[0];
    }


    Don't use a counter to copy each element of temp to gem or you'll just be doing the same thing as before. If I understand what you're asking correctly.
    I haven't used a compiler in ages, so please be gentle as I try to reacclimate myself. :P

  6. #6
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    i can't use fgets

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