摘要:
C. An impassioned circulation of affection time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard outp 阅读全文
摘要:
D. Two Melodies time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Two Melodies time lim 阅读全文
摘要:
E. Army Creation time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output E. Army Creation time l 阅读全文
摘要:
You have written on a piece of paper an array of n positive integers a[1], a[2], ..., a[n] and m good pairs of integers (i1, j1), (i2, j2), ..., (im, 阅读全文
摘要:
The determinant is quite important in Linear Algebras, but I think that almost everyone who has ever learnt Linear Algebras is tired of the complicate 阅读全文
摘要:
Archaeologists find ruins of Ancient ACM Civilization, and they want to rebuild it. The ruins form a closed path on an x-y plane, which has nn endpoin 阅读全文
摘要:
You have multiset of n strings of the same length, consisting of lowercase English letters. We will say that those strings are easy to remember if for 阅读全文