prateek27/launchpad-aug-18-pitampura/blob/master/Lecture-09/nqueen.cpp

LP18Aug0022 · October 9, 2018, 2:17pm

prateek27/launchpad-aug-18-pitampura/blob/master/Lecture-09/nqueen.cpp

#include<iostream>
using namespace std;


bool Left[30] = {0};
bool Right[30] = {0};
bool col[30] = {0};

void solveNQueen(int i,int n,int board[][10]){
	//Base Case
	if(i==n){
		//Print the board
		for(int i=0;i<n;i++){
			for(int j=0;j<n;j++){
				cout<<(board[i][j]?'Q':'.');
			}
			cout<<endl;
		}
		cout<<endl;
		return;

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in this why we did left[30]={0}

and why 30

Abhishek-Vanjani-1385688111468238 · October 10, 2018, 12:27pm

left[30]={0}, initialises it to 0 which is required initially.
30 is taken as a safeguard, you can take 10 as we assumed a 10X10 board.