c - Assigning unknown values in an array to variables -

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okay have array of 9 integers. of values given , unknown. how assign integer variable such 'a' - 'z' these unknown values? example:

index [0] unknown  index [1] 27  index [2] 6 index [3] 9  index [4] unknown  index [5] 21  index [6] 24 index [7] 3  index [8] unknown

i want 

index [0] index [1] 27  index [2] 6 index [3] 9  index [4] b index [5] 21  index [6] 24 index [7] 3  index [8] c         (ii=0; ii<maxline/2; ii++)   {     if (uniquenumbers[ii] == unknown_input)     {        printf("unkown_input @ [%d]\n", ii);     }   }

since not seem use negative values (you mark unknown -1) use negative ascii value of chars store information.

index [0] (-97) index [1] 27  index [2] 6 index [3] 9  index [4] b (-98) index [5] 21  index [6] 24 index [7] 3  index [8] c (-99)

when printing use (char)(-1 * index[i]).


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