boolean nextPermutation(int[] p, int st, int ed) { for (int a = ed - 2; a >= st; a--) { if (p[a] < p[a + 1]) { for (int b = ed - 1; ; b--) { if (p[b] > p[a]) { int t = p[a]; p[a] = p[b]; p[b] = t; for (a++, b = ed - 1; a ...
classSolution {publicvoidnextPermutation(int[] nums) {//高位为nums[0]if(nums !=null&& nums.length >1){inti;for(i = nums.length-2;i>=0;i--){if(nums[i+1]>nums[i]){break; } }if(i >= 0){//如果整个序列为逆序时,i小于0 reverse整个序列,否则找到比nums[i]大的交换次序intk;for(...
Next Permutation Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). The replacement must be in-place, do not all...
next_permutation(a, a + 5);
在了解next_permutation算法是怎么一个过程之前,咱们得先来分析下“下一个排列”的性质。 假定现有字符串(A)x(B),它的下一个排列是:(A)y(B’),其中A、B和B’是“字符串”(可能为空),x和y是“字符”,前缀相同,都是A,且一定有y > x。那么,为使下一个排列字典顺序尽可能小,必有:A尽可能长y尽可能...
由这个例子可以得出next_permutation算法流程为: next_permutation算法 定义升序:相邻两个位置ai < ai+1,ai 称作该升序的首位步骤(二找、一交换、一翻转)找到排列中最后(最右)一个升序的首位位置i,x = ai找到排列中第i位右边最后一个比ai 大的位置j,y = aj交换x,y把第(i+ 1)位到最后的部分翻转还是拿上...
20public static boolean next_permutation(int a[],int n) { 21int i,j;22for(i=n-1;i>=1;i--) { 23if(a[i-1]=i;j--)if(a[j]>a[i-1])break;25 swap(a,i-1,j);26 inArray(a,i,n-1);27break;28 } 29 } 30if(i>=1)return true;31return false;32 } 33 ...
next-permutation number-of-1-bits number-of-digit-one number-of-islands one-edit-distance paint-house palindrome-linked-list palindrome-number palindrome-partitioning-ii palindrome-partitioning palindrome-permutation-ii palindrome-permutation partition-list pascals-triangle-ii pascals-tri...
第一个人随机坐一个座位,后面的人优先坐自己的座位,只有当自己的座位被占了才会随机坐,问第100个人能坐到自己座位的概率(答案50% ,不会)式管理下, CPU取数据要几次访存算法题:给出一个数字串的排列,找出下一一个比当前数更大的一个排列(不能用next_ permutation )三面 ...
21 Next Permutation.java Medium Java [Array] 22 O(1) Check Power of 2.java Easy Java [Bit Manipulation] 23 Palindrome Permutation II.java Medium Java [Backtracking, Permutation] 24 Partition Array by Odd and Even.java Easy Java [Array, Two Pointers] 25 Pascal's Triangle II.java Eas...