我有三个数字x,y,z.
对于数字x和y之间的范围.
如何找到%与z为0的总数,即x和y之间的数字可被z整除？
我在 gremlin 控制台中收到此错误
cegprakash@cegprakash:~/workspace/janusgraph-0.2.1-hadoop2$ ./bin/gremlin.sh
\,,,/
(o o)
-----oOOo-(3)-oOOo-----
plugin activated: janusgraph.imports
plugin activated: tinkerpop.server
plugin activated: tinkerpop.utilities
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/cegprakash/workspace/janusgraph-0.2.1-hadoop2/lib/slf4j-log4j12-1.7.12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/cegprakash/workspace/janusgraph-0.2.1-hadoop2/lib/logback-classic-1.1.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
19:10:12 WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
plugin activated: tinkerpop.hadoop
plugin activated: tinkerpop.spark
plugin activated: tinkerpop.tinkergraph
gremlin> def graph=ConfiguredGraphFactory.create("mygraph")
org.janusgraph.graphdb.management.utils.ConfigurationManagementGraphNotEnabledException: Please add …我在aws中创建了一个海王星实例。我现在如何连接到它？
我从笔记本电脑本地尝试了文档中给出的示例。
from gremlin_python.structure.graph import Graph
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
graph = Graph()
g = graph.traversal().withRemote(DriverRemoteConnection('ws://my_endpoint:8182/gremlin','g'))
print(g.V().limit(2).toList())
但是我在以下堆栈跟踪中获得了超时异常
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/driver_remote_connection.py", line 45, in __init__
password=password)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 76, in __init__
self._fill_pool()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 88, in _fill_pool
conn = self._get_connection()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/client.py", line 101, in _get_connection
self._transport_factory, self._executor, self._pool)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/connection.py", line 40, in __init__
self.connect()
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/connection.py", line 46, in connect
self._transport.connect(self._url)
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/gremlin_python/driver/tornado/transport.py", line 33, in connect
lambda: websocket.websocket_connect(url))
File "/home/cegprakash/.virtualenvs/cegprakash-6Wq6Rd61/lib/python3.5/site-packages/tornado/ioloop.py", line 458, in run_sync …圆心：Cx,Cy
圆半径：a
我们需要绘制切线的点：Px,Py
考虑到上述所有情况，我需要公式来找到两条切线 (t1x, t1y) 和 (t2x,t2y)。
编辑：是否有使用向量代数或其他方法的更简单的解决方案，而不是找到两条直线的方程，然后求解两条直线的方程以分别找到两条切线？另外这个问题并不是偏离主题，因为我需要编写一段代码来最佳地找到它
我需要一个c ++ STL中的数据结构来执行log(n)中第k个元素的插入,搜索和检索
(注意:k是变量而不是常数)
我有一个类似的课程
class myClass{
int id;
//other variables
};
我的比较器只是基于这个id,没有两个元素具有相同的id.
有没有办法使用STL或我手动编写log(n)函数以在任何时间点按排序顺序维护数组？