随笔分类 - Codeforce
摘要：Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder and Chris th
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摘要：B. Chris and Magic Square time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder a
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摘要：Generate a String Generate a String zscoder wants to generate an input file for some programming competition problem. His input is a string consisting
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摘要：Magic Odd Square Magic Odd Square Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are
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摘要：Optimal Point on a Line Optimal Point on a Line You are given n points on a line with their coordinates xi. Find the point x so the sum of distances t
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摘要：King Moves King Moves The only king stands on the standard chess board. You are given his position in format "cd", where c is the column from 'a' to '
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摘要：Pythagorean Triples Katya studies in a fifth grade. Recently her class studied right triangles and the Pythagorean theorem. It appeared, that there ar
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摘要：Bakery Masha wants to open her own bakery and bake muffins in one of the n cities numbered from 1 to n. There are m bidirectional roads, each of whose
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摘要：Brain's Photos Small, but very brave, mouse Brain was not accepted to summer school of young villains. He was upset and decided to postpone his plans
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摘要：Cleaner Robot Masha has recently bought a cleaner robot, it can clean a floor without anybody's assistance. Schematically Masha's room is a rectangle,
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摘要：Lottery Today Berland holds a lottery with a prize — a huge sum of money! There are k persons, who attend the lottery. Each of them will receive a uni
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摘要：Boulevard Welcoming autumn evening is the best for walking along the boulevard and n people decided to do so. The boulevard can be represented as the
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摘要：Layer Cake Dasha decided to bake a big and tasty layer cake. In order to do that she went shopping and bought n rectangular cake layers. The length an
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摘要：Email Aliases Polycarp has quite recently learned about email aliases. Of course, he used to suspect that the case of the letters doesn't matter in em
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摘要：Winner The winner of the card game popular in Berland "Berlogging" is determined according to the following rules. If at the end of the game there is
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摘要：Ancient Berland Circus Nowadays all circuses in Berland have a round arena with diameter 13 meters, but in the past things were different. In Ancient
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摘要：Bear and Finding Criminals There are n cities in Bearland, numbered 1 through n. Cities are arranged in one long row. The distance between cities i an
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摘要：Vanya and Label While walking down the street Vanya saw a label "Hide&Seek". Because he is a programmer, he used & as a bitwise AND for these two word
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摘要：A. Theatre Square time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Theatre Square in the c
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摘要：Vanya and Food Processor Vanya smashes potato in a vertical food processor. At each moment of time the height of the potato in the processor doesn't e
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