gjam 2017 kickstart: parentheses (large) -凯发k8网页登录

created by richard zapor

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this challenge is derived from <a href = "http://code.google.com/codejam/contest/6304486/dashboard#s=p2">gjam 2017 kickstart parentheses</a>. this is the first 100 large cases with 1<=l r<=10^5.<a href = "http://code.google.com/codejam">google code jam 2017 qualifier</a> is march 7, 2017. typically four challenges with small and large aspects with 27 hours to complete.the gjam story is given l left and r right parentheses determine the maximum number of parentheses pairings.input: [l,r], the quantity of parentheses typesoutput: [v], the maximum number of parentheses pairingsexamples: [l,r] [v]; [3,2] [3]for the case ()()(, for example, the three balanced groups are () from indexes 1 to 2, () from indexes 3 to 4, and ()() from indexes 1 to 4.theory: brute force permutations and counting will not succeed in a timely manner for l r=10^5. determining the inherent mathematical pattern is usually the best way to succeed in gjam. <a href = "http://code.google.com/codejam/contest/6304486/scoreboard#vf=1">gjam kickstart solutions(c ,python)</a>.

this challenge is derived from <http://code.google.com/codejam/contest/6304486/dashboard#s=p2 gjam 2017 kickstart parentheses>. this is the first 100 large cases with 1<=l r<=10^5.
<http://code.google.com/codejam google code jam 2017 qualifier> is march 7, 2017. typically four challenges with small and large aspects with 27 hours to complete.
the gjam story is given l left and r right parentheses determine the maximum number of parentheses pairings.
*input:* [l,r], the quantity of parentheses types
*output:* [v], the maximum number of parentheses pairings
*examples:* [l,r] [v]; [3,2] [3]
for the case ()()(, for example, the three balanced groups are () from indexes 1 to 2, () from indexes 3 to 4, and ()() from indexes 1 to 4.
*theory:* brute force permutations and counting will not succeed in a timely manner for l r=10^5. determining the inherent mathematical pattern is usually the best way to succeed in gjam. <http://code.google.com/codejam/contest/6304486/scoreboard#vf=1 gjam kickstart solutions(c ,python)>.

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