S_Black的专栏

Codeforces Round #355 (Div. 2)    说实在话，CF手快不及眼快，我题目意思还没读懂别人都写完了…冲1800的希望又破灭了…Codeforces官方题解A. Vanya and Fence    大于h就是2，小于等于就是2，一个个加起来。#include <iostream>#include <cstdio>#include <cstring>using na

C. Captain Marmottime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputCaptain Marmot wants to prepare a huge and

A. Currency System in Geraldiontime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputA magic island Geraldion, w

D. Flowerstime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe saw the little game Marmot made for Mole's

F. Ant colonytime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMole is hungry again. He found one ant colony,

B. Wormstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputIt is lunch time for Mole. His friend, Marmot, prep

A. Keyboardtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputOur good friend Mole is trying to code a big me

D. CGCDSSQtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGiven a sequence of integers a1, ..., an and q q

D. Red-Green Towerstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are r red and g green blocks fo

C. Kamal-ol-molk's Paintingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputRumors say that one of Kamal-ol

B. Strongly Connected Citytime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputImagine a city with n horizontal

A. Bayan Bustime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe final round of Bayan Programming Contest w

A. Expressiontime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPetya studies in a school and he adores Maths.

B. Towerstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAs you know, all the kids in Berland love playing

C. Table Decorationstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou have r red, g green and b blue ba

A. Examstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputStudent Valera is an undergraduate student at the U

E. Pillarstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMarmot found a row with n pillars. The i-th pil

A. Dreamoon and Sumstime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDreamoon loves summing up something

A. Calculating Functiontime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputFor a positive integer n let's defin

D. Interesting Arraytime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe'll call an array of n non-negative i

C. Hacking Cyphertime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPolycarpus participates in a competition for

B. Queuetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDuring the lunch break all n Berland State Univers

A. Team Olympiadtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe School №0 of the capital of Berland has

B. Valuable Resourcestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMany computer strategy games require b

C. Bitstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputLet's denote as  the number of bits set ('1' bits) i

C. Diverse Permutationtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPermutation p is an ordered set of in

B. Friends and Presentstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou have two friends. You want to pr

这次比赛写的好蠢，只A了2前两道，第一题一开始还想错了……程序这东西还是要多练，最近也要比赛了，自己要加油~~A. Tricky Sumtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard

C. Riding in a Lifttime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputImagine that you are in a building that

B. Long Jumpstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputValery is a PE teacher at a school in Berland.

B. Dreamoon and WiFitime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputDreamoon is standing at the position 0 

A. Dreamoon and Stairstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputDreamoon wants to climb up a stair of

B. Random Teamstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputn participants of the competition were split

C. Dreamoon and Stringstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputDreamoon has a string s and a patter

B. Inbox (100500)time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOver time, Alexey's mail box got littered

D. Gargari and Permutationstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGargari got bored to play with

B. Caisa and Pylonstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputCaisa solved the problem with the sugar

C. Appleman and Toastmantime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAppleman and Toastman play a game.

C. Gargari and Bishopstime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGargari is jealous that his friend C

D. Pashmak and Parmida's problemtime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputParmida is a clever girl a