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1. Top results related to what is a timeline of indian history in order to explain the number

   • What is the most pythonic way to filter list of strings with a list of regular expressions in the order of the regex?

     Top Answer

     Answered Jun 12, 2016 · 3 votes

     Convert your list of strings to a set for easy element removal, then continuously loop over the remaining strings to see if a regex matches. You need to be careful with removing elements from sets while iterating, so make a copy each time:

     tomatch = set(strlst)outlist = []for regex in rexlst: for value in set(tomatch): if regex.match(value): outlist.append(value) tomatch.remove(value)

     This can be converted to a list comprehension but this does hurt readability:

     tomatch = set(strlst)outlist = [v for regex in rexlst for v in set(tomatch) if regex.match(v) and not tomatch.remove(v)]-

     These work even if strings from strlst match more than one regular expression.

     Demo of the list comprehension:

     >>> import re>>> strlst = ['aaaaaa', '1234', 'bbbbb', '------', '.+/4-3', 'a1b2c3']>>> rexlst = [re.compile(x) for x in [r'^[a-z]+$', r'^\d+$']]>>> tomatch = set(strlst)>>> [v for regex in rexlst for v in set(tomatch) if regex.match(v) and not tomatch.remove(v)]['aaaaaa', 'bbbbb', '1234']

     You are left with the unmatched strings in tomatch, if that is any help:

     >>> tomatchset(['.+/4-3', 'a1b2c3', '------'])-

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     1/5

   • What is the code to ask a user to input a number and print the square and cube of that number in python 3.5?

     Top Answer

     Answered Sep 30, 2016 · 2 votes

     when in doubt, add print statements

     number = input ('Please enter a number ')print("number is %s of type %s" % (number, type(number)))print("number is {} of type {}".format(number, type(number)))-y = number ** 2print("y is {} of type {}".format(y, type(y)))z = number **3print("z is {} of type {}".format(z, type(z)))print (y+z)

     Output:

     python3 x.pyPlease enter a number 4number is 4 of type <class 'str'>number is 4 of type <class 'str'>Traceback (most recent call last): File "x.py", line 5, in <module> y = number ** 2TypeError: unsupported operand type(s) for ** or pow(): 'str' and 'int'

     AS you can see, number is a string because in python3, input returns the users input as a string

     change it to int(input('Please enter a number'))

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     2/5

   • What is the maximum number of comparisons required to find a key in a binary tree having 191 nodes and whose height is equal to nine?

     Top Answer

     Answered May 10, 2013 · 1 votes

     Since the height is specified, that's undoubtedly the easiest way to work.

     The maximum number of comparisons is the maximum number of non-leaf nodes you could traverse getting from the root to a leaf node. Depending on how he's defined the height (which, unfortunately, isn't universally agreed upon) that will be either the height or one less than the height.

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     3/5

   • What is the number of comparisons required to search an element in a sorted linked list in the worst case?

     Top Answer

     Answered Feb 26, 2016 · 0 votes

     here is a way to step through the linked list with only 2 comparisons per node.

     while( curr = head; curr != NULL && curr->skey != skey; curr = curr->next);-

     worst case is the skey is not in the linked list

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     4/5

   • What is the best way to determine the number of days in a month with JavaScript?

     Top Answer

     Answered Sep 21, 2021 · 242 votes

     function daysInMonth (month, year) { // Use 1 for January, 2 for February, etc. return new Date(year, month, 0).getDate();}-console.log(daysInMonth(2, 1999)); // February in a non-leap year.console.log(daysInMonth(2, 2000)); // February in a leap year.

     Day 0 is the last day in the previous month. Because the month constructor is 0-based, this works nicely. A bit of a hack, but that's basically what you're doing by subtracting 32.

     See more : Number of days in the current month

     Other Answers

     Answered May 23, 2017 · 13 votes

     Some answers (also on other questions) had leap-year problems or used the Date-object. Although javascript's Date object covers approximately 285616 years (100,000,000 days) on either side of January 1 1970, I was fed up with all kinds of unexpected date inconsistencies across different browsers (most notably year 0 to 99). I was also curious how to calculate it.

     So I wrote a simple and above all, small algorithm to calculate the correct (Proleptic Gregorian / Astronomical / ISO 8601:2004 (clause 4.3.2.1), so year 0

     exists and is a leap year and negative years are supported) number of day's for a given month and year. It uses the short-circuit bitmask-modulo leapYear algorithm (slightly modified for js) and common mod-8 month algorithm.

     Note that in AD/BC notation, year 0 AD/BC does not exist: instead year 1 BC is the leap-year! IF you need to account for BC notation then simply subtract one year of the (otherwise positive) year-value first!! (Or subtract the year from 1 for further year-calculations.)

     function daysInMonth(m, y){ return m===2?y&3||!(y%25)&&y&15?28:29:30+(m+(m>>3)&1);}

     <!-- example for the snippet --><input type="text" value="enter year" onblur=" for( var r='', i=0, y=+this.value ; 12>i++ ; r+= 'Month: ' + i + ' has ' + daysInMonth(i, y) + ' days<br>' ); this.nextSibling.innerHTML=r;" /><div></div>

     Note, months must be 1-based!

     Note, this is a different algorithm then the magic number lookup I used in my Javascript calculate the day of the year (1 - 366) answer, because here the extra branch for the leap-year is only needed for February.

     Other Answers

     Answered May 23, 2017 · 7 votes

     If you call this function often, it may be useful to cache the value for better performance.

     Here is caching version of FlySwat's answer:

     var daysInMonth = (function() { var cache = {}; return function(month, year) { var entry = year + '-' + month;- if (cache[entry]) return cache[entry]; return cache[entry] = new Date(year, month, 0).getDate(); }})();

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     5/5

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2. www.geeksforgeeks.org › indian-history-timelineIndian History Timeline : Ancient to Modern History Chronology

   www.geeksforgeeks.org › indian-history-timeline

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   Feb 28, 2024 · The Indian history Timeline is divided into three periods : ancient, medieval, and modern. The chronology of Indian history spans thousands of years, from prehistoric times to the modern era. Each period is marked by various events, rulers, and social transformations that shaped Indian history.

3. en.wikipedia.org › wiki › History_of_IndiaHistory of India - Wikipedia

   en.wikipedia.org › wiki › History_of_India

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   Indian cultural influence (Greater India) Timeline of Indian history. Chandragupta Maurya overthrew the Nanda Empire and established the first great empire in ancient India, the Maurya Empire. India's Mauryan king Ashoka is widely recognised for his historical acceptance of Buddhism and his attempts to spread nonviolence and peace across his ...

4. Videos

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     Complete Indian History Timeline For UPSC Preparation (भारतीय इतिहास समयरेखा)

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     India - Summary since 1900

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     75 years of Independence: the India story | The Hindu

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5. byjus.com › govt-exams › movements-indian-freedomTimeline of Important Events During the Indian Freedom ...

   byjus.com › govt-exams › movements-indian-freedom

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   The Indian National Movement is a very relevant topic in Indian History for many government exams, and the significance of this topic can only be appreciated by being aware of the kinds of questions that can be asked in the examination. Hence, candidates should practice enough questions related to the topic.

6. archive.southernwv.edu › form-library › uploadedTimeline Of Indian History - archive.southernwv.edu

   archive.southernwv.edu › form-library › uploaded

   dateline quoted in epigraphic records, Purunas and other Sanskrit texts to fix the epochs of various events of Indian history and personalities. Hope the present work will be helpful to learned and laity alike for understanding the actual and factual dateline of Indian history. The Timeline History of India Dilip Hiro,2005

7. www.nature.com › articles › 459646aAn Indian history of numbers | Nature

   www.nature.com › articles › 459646a

   Jun 3, 2009 · In the Early Vedic period (1200–600 BC ), a decimal system of numbers was already established in India, together with rules for arithmetical operations ( ganita) and geometry ( rekha-ganita ...

   • Author: Pervez Hoodbhoy

   • Publish Year: 2009

8. testbook.com › india-after-independence-timelineIndia After Independence - Know All Major Events With Timeline

   testbook.com › india-after-independence-timeline

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   May 8, 2023 · India After Independence Timeline (1947-2021) 1947. Independence of India. 1947. Integration of princely states. Jawaharlal Nehru is appointed as the first Prime Minister of Independent India. 1948. The assassination of Mahatma Gandhi. India-Pakistan war on Kashmir.

9. en.wikipedia.org › wiki › Timeline_of_numerals_andTimeline of numerals and arithmetic - Wikipedia

   en.wikipedia.org › wiki › Timeline_of_numerals_and

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   150 BC — Jain mathematicians in India write the “Sthananga Sutra”, which contains work on the theory of numbers, arithmetical operations, geometry, operations with fractions, simple equations, cubic equations, quartic equations, and permutations and combinations. 50 BC — Indian numerals, the first positional notation base-10 numeral ...