Mine

     void help(int array[9][9], int di, int dj)        {        int i;        if  (array[di][dj] == 0) {        printf("Ta diathesima noumera einai:");        for (i=1 ; i<=9; i++) {    if (numberInRow(array,di,i) == 0 &&  numberInCol(array,dj,i) == 0 &&  numberIn3x3(array,di,dj,i) == 0)                printf("%d ", i);};        };        printf("\n");        }