摘要：
题目链接： Balancing Act Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11845 Accepted: 4993 Description Consider a tree T with N (1 <= N <= 20 阅读全文
摘要：
题目链接： D. Kay and Snowflake time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output time limit pe 阅读全文