#### Category : n-queens

trying to solve the N-queen problem. CHANGE- Use VOID return type function to solve the problem . Intro./Mechanism of the problem– initially no queen is placed on board and i recursively place the Queen piece in each column and with initial fixed col. fixed i go forwrd looking for other rows in next column to ..

I’m trying to do this nQueens problem and my code looks like this: class Solution { public: vector<vector<string>> ans; bool canPlace(vector<string> &board, int row, int col, int n){ //upper left diagonal int rowIndex = row; int colIndex = col; while(rowIndex >= 0 and colIndex >= 0){ if(board[rowIndex][colIndex] == ‘Q’){ return false; } rowIndex–; colIndex–; } ..

I am trying to solve the N Queens problem, I can solve it by C++, but I want to change the code to Java, but I don’t know how to code it. Please help me. Thank you! Vector<Vecotr<String>> res = new Vector<Vector<String>>(); Vector<Vector<String>> solveNQueens(int n) { Vector<String> board(n, String(n, ‘.’)); backtrack(board, 0); return res; } ..

Recently got an assignment on solving n-queens problem using BFS/DFS. My BFS stops at N=7 and I think it’s understandable but DFS has problem with N=8 and goes on for few minutes. Do you have any suggestions how to speed it up? Also can you recommend what should I learn to speed up my code ..

here is my code #include <iostream> #include <vector> using namespace std; int k = 4; vector<int> QLocation(k,0); vector<vector<string> > board(k, vector<string>(k, ".")); bool check(int row, int column) { if (row == 0) return true; for (int m = row – 1, n = 1; m >= 0; m–, n++) { if (board[m][column] == "Q") return ..

I wanted to work on the N-Queen but I found this variant of the problem with some added walls that can be random on the board and limited range for the queens. I made the code for the classical N-Queen problem but I don’t seem to figure out how to implement the two other requirements ..

I have to solve n-Queen problem using Standard Template Libraries <stack> and <forward_list>. I’ve already implemented the backtracking algorithm and the printing of the solution and I only have to check if there are conflicts between queens or not. The function I’ve to use returns a boolean value and has const std::stack<unsigned int>& s as ..