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C. Polycarp Restores Permutation time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output An array of integersp1,p2,…,pnp1,p2,…,pnis cal...

Recently, the bear started studying data structures and faced the following problem. You are given a sequence of integersx1, x2, ..., xnof lengthnandmqueries, each of them is characterized by t...

题目链接:http://codeforces.com/problemset/problem/568/A Rikhail Mubinchik believes that the current definition of prime numbers is obsolete as they are too complex and unpredictable. A palindromic number...