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实现 strStr() 函数。
给你两个字符串 haystack 和 needle ，请你在 haystack 字符串中找出 needle 字符串出现的第一个位置（下标从 0 开始）。如果不存在，则返回 -1 。
说明：
当 needle 是空字符串时，我们应当返回什么值呢？这是一个在面试中很好的问题。
对于本题而言，当 needle 是空字符串时我们应当返回 …
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I noticed that using the Nodegraph method ``n_unique_kmers()`` returns 0 whenever a Nodegraph is saved and then reloaded. Minimum working example:
```python
import khmer
import tempfile
import os
…
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When I added space to the substring that is the subject of the search(e.g " e "), program returns me names that do not include that substring.
Expected: Only names that have " e " are given as o…
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```
What steps will reproduce the problem?
import pyodbc
conn = pyodbc.connect("DSN=neuron;user=ccurvey;password=XXXXXX")
cursor = conn.cursor()
cursor.execute("drop table if exists foobar");
curso…
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```
What steps will reproduce the problem?
import pyodbc
conn = pyodbc.connect("DSN=neuron;user=ccurvey;password=XXXXXX")
cursor = conn.cursor()
cursor.execute("drop table if exists foobar");
curso…
-
```
What steps will reproduce the problem?
import pyodbc
conn = pyodbc.connect("DSN=neuron;user=ccurvey;password=XXXXXX")
cursor = conn.cursor()
cursor.execute("drop table if exists foobar");
curso…
-
```
What steps will reproduce the problem?
import pyodbc
conn = pyodbc.connect("DSN=neuron;user=ccurvey;password=XXXXXX")
cursor = conn.cursor()
cursor.execute("drop table if exists foobar");
curso…
-
```
What steps will reproduce the problem?
1. OCR the attached image in PSM_SINGLE_BLOCK using tesseract 3.04 latest with
default eng.traineddata
What is the expected output? What do you see instead…
-
```
What steps will reproduce the problem?
1. OCR the attached image in PSM_SINGLE_BLOCK using tesseract 3.04 latest with
default eng.traineddata
What is the expected output? What do you see instead…
-
```
What steps will reproduce the problem?
1. OCR the attached image in PSM_SINGLE_BLOCK using tesseract 3.04 latest with
default eng.traineddata
What is the expected output? What do you see instead…