小编Ray*_*hua的帖子

我想用Python写一个Op.本教程仅解释如何使用Python包装器在c ++中执行此操作. https://www.tensorflow.org/versions/master/how_tos/adding_an_op/index.html#adding-a-new-op

我怎样才能在Python中完全编写它？

在我开始之前,我不得不为重复提出另一个排列的情况而道歉.我已经浏览了大部分搜索结果,无法找到我想要的内容.我已阅读有关Lexicographical命令并已实施它.对于这个问题,我想要实现一个递归方法,它打印出长度为n的所有字符串,其中只包含a和b等于a和b的字符a和b.字符串必须按词汇顺序一次打印出一行.所以,例如,一个电话:

printBalanced(4);

将打印字符串:

aabb
abab
abba
baab
baba
bbaa

这是代码

public static void main(String[] args){
    printBalanced(4);
}


public static void printBalanced(int n){
    String letters = "";

    //string to be duplicates of "ab" depending the number of times the user wants it
    for(int i =0; i<n/2;i++){
        letters += "ab";
    }


    balanced("",letters);

}

private static void balanced(String prefix, String s){

    int len = s.length();

    //base case
    if (len ==0){
        System.out.println(prefix);
    }
    else{
            for(int i = 0; i<len; i++){     

                balanced(prefix + s.charAt(i),s.substring(0,i)+s.substring(i+1,len));


            } …

我有一段代码,我无法弄清楚它为什么在线程"main"java.lang.StackOverflowError中给我异常.

这是个问题:

Given a positive integer n, prints out the sum of the lengths of the Syracuse 
sequence starting in the range of 1 to n inclusive. So, for example, the call:
lengths(3)
will return the the combined length of the sequences:
1
2 1
3 10 5 16 8 4 2 1 
which is the value: 11. lengths must throw an IllegalArgumentException if 
its input value is less than one.

我的代码:

import java.util.HashMap;

public class Test {

HashMap<Integer,Integer> syraSumHashTable …

在观看了 Udacity 中的“AI 简介”课程后，我正在尝试实施统一成本搜索。但是，我的算法没有得到正确的路径。在这里发帖之前一直在尝试一整天。我添加了一张地图来帮助可视化场景。该算法应该找到从 Arad 到 Bucharest 的最短加权路径

import java.util.PriorityQueue;
import java.util.HashSet;
import java.util.Set;
import java.util.Collections;
import java.util.List;
import java.util.ArrayList;
import java.util.Comparator;

//diff between uniform cost search and dijkstra algo is that UCS has a goal

public class UniformCostSearchAlgo{
    public static void main(String[] args){

        //initialize the graph base on the Romania map
        Node n1 = new Node("Arad");
        Node n2 = new Node("Zerind");
        Node n3 = new Node("Oradea");
        Node n4 = new Node("Sibiu");
        Node n5 = new Node("Fagaras");
        Node n6 = …