Dancing Lessons Time Limit: 5000ms Memory Limit: 262144KB This problem will be judged on CodeForces. Original ID: 45C64-bit integer IO format: %I64d      Java class name: (Any)   There are n people taking dancing lessons. Every person is characterize…

C. Dancing Lessons   There are n people taking dancing lessons. Every person is characterized by his/her dancing skill ai. At the beginning of the lesson they line up from left to right. While there is at least one couple of a boy and a girl in the l…

Hometask Time Limit: 2000ms Memory Limit: 262144KB This problem will be judged on CodeForces. Original ID: 154A64-bit integer IO format: %I64d      Java class name: (Any)   Sergey attends lessons of the N-ish language. Each lesson he receives a homet…

B. Infinite Maze time limit per test  2 seconds memory limit per test  256 megabytes input standard input output  standard output We've got a rectangular n × m-cell maze. Each cell is either passable, or is a wall (impassable). A little boy found the…

Double Profiles Time Limit: 3000ms Memory Limit: 262144KB This problem will be judged on CodeForces. Original ID: 154C64-bit integer IO format: %I64d      Java class name: (Any)   You have been offered a job in a company developing a large social net…

An interesting mobile game Time Limit: 1000ms Memory Limit: 32768KB This problem will be judged on HDU. Original ID: 329564-bit integer IO format: %I64d      Java class name: Main   XQ,one of the three Sailormoon girls,is usually playing mobile games…

Colliders Time Limit: 2000ms Memory Limit: 262144KB This problem will be judged on CodeForces. Original ID: 155D64-bit integer IO format: %I64d      Java class name: (Any)   By 2312 there were n Large Hadron Colliders in the inhabited part of the uni…

C - Design the city Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Description Cerror is the mayor of city HangZhou. As you may know, the traffic system of this city is so terrible, that there are traffic jams everywhere.…

E - Palindromic Numbers Time Limit:2000MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Description A palindromic number or numeral palindrome is a 'symmetrical' number like 16461 that remains the same when its digits are reversed. In this…

D - Round Numbers Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Description The cows, as you know, have no fingers or thumbs and thus are unable to play Scissors, Paper, Stone' (also known as 'Rock, Paper, Scissors', 'R…