Regarding n queen

#1

sir please tell me the correction in this code

#2

your is_possible function is the culprit , the condition in while condition should use && operator instead of ||

bool is_possible(int board[][100],int n,int i,int j)
{
    for(int x=0;x<i;x++)
    {
        if(board[x][j]==1) return false;
    }

    int x=i-1,y=j-1;
    while(x>=0 && y>=0)  // your code : while(x>=0 || y>=0)
    {
        if(board[x][y]==1) return false;
    x--;
    y--;
    }
    
    x=i-1,y=j+1;
    while(x>=0 && y<n)        // your code : while(x>=0 || y<n) 
    {
        if(board[x][y]==1) return false;
    x--;
    y++;
    }
return true;
}

mark your doubt as resolved if you got the answer :slight_smile:

#3

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