Commit 01c355d

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Day13

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	`1`	`+# implemet Binary Search Algorithm`
	`2`	`+`
	`3`	`+# Note For binary serch Array must be sorted`
	`4`	`+`
	`5`	`+__author__ = "Mahtab Alam"`
	`6`	`+`
	`7`	`+`
	`8`	`+def bianry_search(alist, item):`
	`9`	`+ """Binary Search Algorithm"""`
	`10`	`+ first = 0`
	`11`	`+ last = len(alist)-1`
	`12`	`+ found = False`
	`13`	`+ while first <= last and not found:`
	`14`	`+ mid = (first+last)//2`
	`15`	`+ if alist[mid] == item:`
	`16`	`+ found = True`
	`17`	`+ else:`
	`18`	`+ if item < alist[mid]:`
	`19`	`+ last = mid-1`
	`20`	`+ else:`
	`21`	`+ first = mid+1`
	`22`	`+ return found`
	`23`	`+`
	`24`	`+`
	`25`	`+print(bianry_search([4, 5, 6, 7, 8, 9], 4))`

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	`1`	`+`
	`2`	`+`
	`3`	`+# Problem Link https://www.hackerrank.com/challenges/swap-case/problem`
	`4`	`+`
	`5`	`+`
	`6`	`+__author__ = "Mahtab Alam"`
	`7`	`+`
	`8`	`+`
	`9`	`+def swap_case(s):`
	`10`	`+ a = ""`
	`11`	`+ for word in s:`
	`12`	`+ if word.isupper() == True:`
	`13`	`+ a += (word.lower())`
	`14`	`+ else:`
	`15`	`+ a += (word.upper())`
	`16`	`+ return a`
	`17`	`+`
	`18`	`+`
	`19`	`+s = "Www.HackerRank.com"`
	`20`	`+`
	`21`	`+print(swap_case(s))`

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