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原题： A - Summer Camp Time Limit:1000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64uDescription Every year, hundreds of people come to summer camps, they learn new algorithms and solve

A - Infinite Sequence Time Limit:1000MS Memory Limit:262144KB 64bit IO Format:%I64d & %I64u SubmitStatusPracticeCodeForces 675A Appoint description: Description Vasya likes everything inf

B - Restoring PaintingTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit Status Practice CodeForces 675BAppoint description: System Crawler  (Aug 10, 2

题目： A monster is chasing after Rick and Morty on another planet. They’re so frightened that sometimes they scream. More accurately, Rick screams at times b, b + a, b + 2a, b + 3a, … and Morty screams

题目： Since the giant heads have appeared in the sky all humanity is in danger, so all Ricks and Mortys from all parallel universes are gathering in groups to find a solution to get rid of them.There ar

题目： Anton’s favourite geometric figures are regular polyhedrons. Note that there are five kinds of regular polyhedrons:Tetrahedron. Tetrahedron has 4 triangular faces. Cube. Cube has 6 square faces.

题目： Anton likes to play chess. Also he likes to do programming. No wonder that he decided to attend chess classes and programming classes.Anton has n variants when he will attend chess classes, i-th v