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Python adding space between characters in string. Most efficient way


Python adding space between characters in string. Most efficient way

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Python adding space between characters in string. Most efficient way
Tag : python , By : Lars
Date : November 29 2020, 01:01 AM


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C# adding space after few characters in string


Tag : development , By : Alan Little
Date : March 29 2020, 07:55 AM
I wish this help you I wanna add space in string( string from array) after 2 characters, for example: 1234567890 should be 12 34 56 78 90, any suggestions how to do that? , You would probably have to do a loop as such:
int i = 0;
int amount = 2;
string s = "1234567890";
string withspaces = "";

while (i+amount < s.Length) {
  s += s.Substring(i,i+amount);
  s += " ";
  i = i + amount;
}

Removing specified characters from a string - Efficient methods (time and space complexity)


Tag : cpp , By : Chris Lomax
Date : March 29 2020, 07:55 AM
it fixes the issue Assuming that you're studying algorithms, and not interested in library solutions:
Hash tables are most valuable when the number of possible keys is large, but you only need to store a few of them. Your hash table would make sense if you were deleting specific 32-bit integers from digit sequences. But with ASCII characters, it's overkill.
void remove_chars(string& str, const string& chars)
{
    // set up the look-up table
    std::vector<bool> discard(256, false);
    for (int i = 0; i < chars.size(); ++i)
    {
        discard[chars[i]] = true;
    }

    for (int j = 0; j < str.size(); ++j)
    {
        if (discard[str[j]])
        {
            // do something, depending on your storage choice
        }
    }
}

more efficient way split quoted string by space with python?


Tag : python , By : Gerhard Miller
Date : March 29 2020, 07:55 AM
Any of those help Just wrote a regex based on the sample line, I don't actually know the meaning of some fields so I used placeholder names for them, you can rename them to more meaningful ones. On my machine this snippet is 4~5 times faster than your first one.
log_line_re = re.compile(
r"""
(?P<float1>[0-9.]+)
\s
(?P<float2>[0-9.]+)
\s
(?P<ip1>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
\s
(?P<field1>.+?)
\s
(?P<ip_port_1>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d{1,5})
\s+
\[(?P<request_date>.+?)\]
\s
(?P<host>.+?)
\s
"
(?P<http_method>[A-Z]+)
\s
(?P<request_path>.+?)
\s
HTTP/(?P<http_version>[0-9.]+)
"
\s
(?P<status_code>\d{3})
\s
(?P<number>\d+)
\s
"
(?P<referer>.+?)
"
\s
"(?P<user_agent>.+?)"
\s
"(?P<field2>.+?)"
\s
"(?P<field3>.+?)"
\s
(?P<field4>.+?)
"
(?P<ip2>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
\s
(?P<request_guid>.+?)
"
""", re.VERBOSE)


def convert(line):
    return log_line_re.match(line).groupdict()

Adding space to a string after 3 characters starting from right in mysql


Tag : mysql , By : Noah
Date : March 29 2020, 07:55 AM
I wish this help you I have a requirement where at first I need to remove all space from a string, then put a space after 3 characters started from right.
SELECT INSERT('AX1098', 4, 0, ' ');
UPDATE YOURTABLE
SET YOURCOL = INSERT(YOURCOL, 4, 0, ' ');

Adding space between characters of a string containing special accented character


Tag : python , By : user183526
Date : March 29 2020, 07:55 AM
I hope this helps you . You can use re.findall with a pattern that matches a word character optionally followed by an non-word character (which matches an accent):
import re
s = 'abakə̃tə̃'
print(' '.join(re.findall(r'\w\W?', s)))
print(' '.join(re.split(r'(?<=.)(?=\w)', s)))
a b a k ə̃ t ə
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