@fei

codeforce 1783e

原题：D. Insert a Progressiontime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a sequence of nintegers a1,a2,…,ana_1,a_2,…,a_na1​,a2​,…,an​. You are also given x integers 1,2,…,x.Yo

原题：D. The Number of Pairstime limit per test2 secondsmemory limit per test512 megabytesinputstandard inputoutputstandard outputYou are given three positive (greater than zero) integers c, d and x.You have to find the number of pairs of positive

原题：D. Same GCDstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two integers a and m. Calculate the number of integers x such that 0≤x<m and gcd(a,m)=gcd(a+x,m).Note: gcd(a,b)

原题：C. Two Arraystime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two integers n and m. Calculate the number of pairs of arrays (a,b) such that:the length of both arrays is equal to

原题：B. Yet Another Meme Problemtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputTry guessing the statement from this picture http://tiny.cc/ogyoiz.You are given two integers A and B, calculate t

原题：C. Infinite Fencetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are a rebel leader and you are planning to start a revolution in you...

原题：D. Santa’s Bottime limit per test5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputSanta Claus has received letters from ndifferent kids throughout this ...

原题：B. A and Btime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two integers a and b. You can perform a sequence of operations...

uva 10090 So you want to be a 2n-aire?

UVA 10910 Marks Distribution

uva 10254 The Priest Mathematician

uva 10519 !! Really Strange !!

uva 10359 Tiling

uva 10940 Throwing cards away II

uva 10918 Tri Tiling

uva 10229 Modular Fibonacci

uva 10862 Connect the Cable Wires

uva 10334 Ray Through Glasses

uva 10518 How Many Calls?

uva 113 Power of Cryptography

F. Coprime Subsequences Educational Codeforces Round 20contest/803

uva 580 Critical Mass

原题：D. Zero Quantity Maximizationtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two arrays aand b, each contains n intege...

原题：D. Magic Gemstime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputReziba has many magic gems. Each magic gem can be split into M normal gems. ...

原题：C. Meme Problemtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a non-negative integer d. You have to find two non-negative r...

原题：B. Divisor Subtractiontime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given an integer number n. The following algorithm is appli...

原题： D. Vasya And The Matrix time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Now Vasya is taking an exam in mathematics. In order to get ...

原题： E. Intercity Travelling time limit per test1.5 seconds memory limit per test256 megabytes inputstandard input outputstandard output Leha is planning his journey from Moscow to Saratov. He ha...

原题： D. Inversion Counting time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output A permutation of size n is an array of size n such that each i...

原题： Piotr found a magical box in heaven. Its magic power is that if you place any red balloon inside it then, after one hour, it will multiply to form 3 red and 1 blue colored balloons. Then in the

codeforcesEducational Codeforces Round 34 Almost Difference

原题： E. Counting Arrays time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given two positive integer numbers x and y. An array F is

原题： Alice got an array of length n as a birthday present once again! This is the third year in a row! And what is more disappointing, it is overwhelmengly boring, filled entirely with zeros. Bob dec...

uva 10157 Expressions

uva 11029 Leading and Trailing

uva 10328 Coin Toss

原题： E. Vasya’s Function time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Vasya is studying number theory. He has denoted a function f(a, b)

原题： Another common social inability is known as ACM (Abnormally Compulsive Meditation). This psy- chological disorder is somewhat common among programmers. It can be described as the temporary (alth

uva 10465