摘要:
A binary tree is a finite set of vertices that is either empty or consists of a root r and two disjoint binary trees called the left and right subtree 阅读全文
摘要:
B. Cells Not Under Attack time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output B. Cells Not U 阅读全文
摘要:
Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Ouli 阅读全文
摘要:
畅通工程续 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 44889 Accepted Submission(s): 16651 Problem 阅读全文
摘要:
Square Problem Description Given a set of sticks of various lengths, is it possible to join them end-to-end to form a square? Input The first line of 阅读全文