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 ..

#### Category : n-queens

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 ..

I tried to code the n queens problem but spent the whole day and ended up with this, I’m sure that main logic is right but there’s some extra output being printed too, please check and help me my code gives output as: 00 12 13 21 01 13 20 32 00 12 13 21 ..

I managed to understand the solution for the N-Queens problem but I have a slight confusion regarding the time complexity of the solution. I tink that overall complexity would be O(n!*(n^2)). I know it is wrong. Please Help. ` void placeQueens(int row, vector<int> &columns,int n, vector<vector<int>>&ans){ if(row==n){ ans.push_back(columns); return; } for(int col=0;col<n;col++){ // O(n) time ..

template void Stack<Item>::push(const Item& entry) // Library facilities used: cassert { assert(size()<CAPACITY); data[used]=entry; ++used; } template <class Item> Item Stack<Item>::pop( ) // Library facilities used: cassert { assert(!empty()); –used; return data[used]; } I have these two functions for a stack,but I want to change them so that the stack grows down , the first push ..

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