java next permutation

Solutions on MaxInterview for java next permutation by the best coders in the world

showing results for - "java next permutation"
Jennette
07 Apr 2017
1public static boolean next_permutation(int[] arr) {
2	int len = arr.length;
3	int i = len - 1;
4
5    // 1. find largest i where arr[i - 1] < arr[i]
6	while (i > 0) {
7		if (arr[i - 1] < arr[i]) break;
8    	i--;
9  	}
10
11  	if (i <= 0) return false;
12
13  	// 2. find largest j where arr[i - 1] < arr[j] and j >= i
14  	int j = len - 1;
15  	while (j >= i) {
16    	if (arr[i - 1] < arr[j]) break;
17    	j--;
18  	}
19
20	// 3. swap elements between arr[i-1] and arr[j]
21  	swap(i - 1, j, arr);
22
23  	// 4. reverse elements from i to end of array
24  	len--;
25  	while (i < len) {
26    	swap(i, len, arr);
27    	len--;
28    	i++;
29  	}
30  	return true;
31}
32
33public static void swap(int x, int y, int[] arr) {
34  	int temp = arr[x];
35  	arr[x] = arr[y];
36  	arr[y] = temp;
37}
queries leading to this page
java 5bpermutationsnext permutation dpstring permutaion in javapermutations in javanext permutation stl in stringfind next permutation javanext permutation programnext permutations in java collectionsstring permutation in javanext permutation with string javapermutation javanext permutation 2cget permutations of list javanext permutation java stringstring permutationjava next permutation equivilent c 2b 2bhow to next permutationpermutation java programusing next permutation in stringwhat does it mean to apply a permutation in javanext permutation gfg javajava inbuilt permutation functionnext permutation intiutionnext permutation inbuiltpermutations function in javajava inbuilt permutationpermutation of string in javanext permutation javahow to get the next permutationjava permutationspermutation function javanext permutation of sting javajava next permutation equivilentpermutation in javajava next permutation built inc 2b 2b next permutation in javanext permutation in javajava permutation of 3 variablesnext permutation implementationpython next permutationjava program which returns the next permutationbuilt in method of next permutation javapermutation code in javajava predefined functions for permutaitonpermutation implementation javafind next permutationnext permutation javajava next permutationhow to generate permutations in javapermutation of numbers in javawhy i need next permutationnext permutation using applicationnext permutationjava code for next permutationhow to build next permutationpermutations built in function in javastring next permutationnext permutation on a stringhow to do permutations in javanext permutation stringgenerate permutations javanext permuation in javainteger permutation javanext permutation function in javastring permutation javawhat is next permutationcalculate permutations in javanext permutation permutation program in javapermutation 3cith next permutationnext permutation in javaall permutations of javastring next permutation javapermutation using javapermutation of a string javajava next permutation