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B. Hamming Distance Sumtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGenos needs your help. He was asked

A. Wilbur and Swimming Pooltime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter making bad dives into swim

D. Chip 'n Dale Rescue Rangerstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputA team of furry rescue ranger

D. Igor In the Museumtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputIgor is in the museum and he wants to

A. Tricky Sumtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputIn this problem you are to calculate the sum o

B. Queries on a Stringtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a string s and should

C. Nearest vectorstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given the set of vectors on the

C. Kefa and Parktime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKefa decided to celebrate his first big sa

“Or” Game time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given n numbers a1, a2, …, an. You can perform at most k opera

B. Wilbur and Arraytime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWilbur the pig is tinkering with arrays

A. Two Basestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter seeing the "ALL YOUR BASE ARE BELONG TO U

B. Approximating a Constant Rangetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWhen Xellos was doing a p

A. Saitama Destroys Hoteltime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSaitama accidentally destroyed a h

A. Uncowed Forcestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin Sun has just finished competing in C

C. Alternative Thinkingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin has just recevied his disappo

B. More Cowbelltime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKevin Sun wants to move his precious collec

B. Spongebob and Joketime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWhile Patrick was gone shopping, Spon

A. Patrick and Shoppingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputToday Patrick waits for a visit from

C. The Two Routestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputIn Absurdistan, there are n towns (number

C. Median Smoothingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputA schoolboy named Vasya loves reading b

B. Kefa and Companytime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKefa wants to celebrate his first big s

A. Kefa and First Stepstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputKefa decided to make some money doi

B. Robot's Tasktime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputRobot Doc is located in the hall, with n com

A. 2Chartime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAndrew often reads articles in his favorite magazi

C. The Big Racetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputVector Willman and Array Bolt are the two mo

C. Developing Skillstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPetya loves computer games. Finally a g

A. Vasya the Hipstertime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOne day Vasya the Hipster decided to co

B. Luxurious Housestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe capital of Berland has n multifloor

B. The Monster and the Squirreltime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAri the monster always wakes

A. PawnChesstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputGalois is one of the strongest chess players of

A. Asphalting Roadstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputCity X consists of n vertical and n hori

B. Anton and Linestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe teacher gave Anton a large geometry h

B. Kolya and Tanyatime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputKolya loves putting gnomes at the circle

B. Finding Team Member time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output There is a programing contest named SnakeUp, 2n people wa

A. Wizards' Dueltime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputHarry Potter and He-Who-Must-Not-Be-Named

A. Raising Bacteria time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output You are a lover of bacteria. You want to raise some bacteria

B. Rebrandingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe name of one small but proud corporation c

D. Dima and Lisatime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputDima loves representing an odd number as th

C. Marina and Vasyatime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMarina loves strings of the same length

C. GCD Tabletime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe GCD table G of size n × n for an array o