2018.4.24 Java implementation 8 Queen algorithm

Source: Internet
Author: User

Tag:for   java   generated   div    Run     system.in   new   else   todo   

Import Java.util.scanner;public class Nqueens {Private Boolean verify (int[] arr,int i) {//TODO auto-generated method stub for (int j = 1; J! = i; j + +) {if (j = = i) {continue;} if (arr[i]==arr[j]| | Math.Abs (i-j) ==math.abs (Arr[i]-arr[j]) {return false;}} return true;} private void Nqueens (int[] arr,int i,int N) {//TODO auto-generated method stubfor (int j = 1; j < Arr.length; J + +) {AR  R[i] = j;if (verify (Arr,i)) {if (i = = N) {System.out.println ("--------------------"); for (int k = 1; k < arr.length; k++) {SYSTEM.OUT.PRINTLN ("---" + k + "---" + arr[k]);}} else {nqueens (arr,i+1,n);}}}} public static void Main (string[] args) {Scanner s = new Scanner (system.in); String num = S.next (); int n = integer.parseint (num); int[] arr = new Int[n+1];new Nqueens (). Nqueens (Arr,1,n);}}

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2018.4.24 Java implementation 8 Queen algorithm

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