nascar2000

i coded a sudoku program ,but i am having a problem with it. my sudoku can find whether row/col/and 3*3 duplicate numbers(uses isLegal() function). grid is generated by random numbers .these random numbers will go into empty grids in the square. if duplicate numbers exists(isLegal function becomes false) i make the current square empty. after that i want to count other numbers and check whether its valid or not, if valid it will go to the empty squares.any help is appreciated..

code-------------------------------------------------------------------
bool generation(int newGrid[9][9],int r,int c) //generation function with arg
{
if(c == 9)
{
if(++r == 9)
return true;
c = 0;
}
if(newGrid[r][c] != 0)
return generation(newGrid, r, c + 1);
do
{
const int randV = (rand() % 9) + 1;
newGrid[r][c] = randV;
if(!isLegal())
{
newGrid[r][c] = 0;
return false;
}
}
while(!generation(newGrid, r, c + 1));

return true;


}

nnxion

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