time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output In Absurdistan, there are n towns (numbered 1 through n) and m bidirectional railways. There is also an absurdly simple road network - for each…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output There are n servers in a laboratory, each of them can perform tasks. Each server has a unique id - integer from 1 to n. It is known that during…
Description through n) and m bidirectional railways. There is also an absurdly simple road network — for each pair of different towns x and y, there is a bidirectional road between towns x and yif and only if there is no railway between them. Travell…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Anton loves transforming one permutation into another one by swapping elements for money, and Ira doesn't like paying for stupid games. Help them…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Local authorities have heard a lot about combinatorial abilities of Ostap Bender so they decided to ask his help in the question of urbanization…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output A big company decided to launch a new series of rectangular displays, and decided that the display must have exactly n pixels. Your task is to de…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Limak is going to participate in a contest on the last day of the 2016. The contest will start at 20:00 and will last four hours, exactly until m…
time limit per test5 seconds memory limit per test512 megabytes inputstandard input outputstandard output This task is very simple. Given a string S of length n and q queries each query is on the format i j k which means sort the substring consisting…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Kevin Sun has just finished competing in Codeforces Round #334! The round was 120 minutes long and featured five problems with maximum point valu…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Chloe, the same as Vladik, is a competitive programmer. She didn't have any problems to get to the olympiad like Vladik, but she was confused by…
time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Vanya has a scales for weighing loads and weights of masses w0,?w1,?w2,?-,?w100 grams where w is some integer not less than 2 (exactly one weight…
time limit per test4 seconds memory limit per test256 megabytes inputstandard input outputstandard output All our characters have hobbies. The same is true for Fedor. He enjoys shopping in the neighboring supermarket. The goods in the supermarket hav…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Every Codeforces user has rating, described with one integer, possibly negative or zero. Users are divided into two divisions. The first divisio…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output In this problem we assume the Earth to be a completely round ball and its surface a perfect sphere. The length of the equator and any meridian i…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Running with barriers on the circle track is very popular in the country where Dasha lives, so no wonder that on her way to classes she saw the…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output After overcoming the stairs Dasha came to classes. She needed to write a password to begin her classes. The password is a string of length n whi…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output After overcoming the stairs Dasha came to classes. She needed to write a password to begin her classes. The password is a string of length n whi…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Dasha logged into the system and began to solve problems. One of them is as follows: Given two sequences a and b of length n each you need to wr…
time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Every Codeforces user has rating, described with one integer, possibly negative or zero. Users are divided into two divisions. The first divisio…
