A - Is It A Tree? Crawling in process... Crawling failed Time Limit:1000MS Memory Limit:10000KB 64bit IO Format:%lld & %llu Description A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or mor…
Points on Cycle Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Description There is a cycle with its center on the origin. Now give you a point on the cycle, you are to find ou…