摘要:
题目描述Farmer John has installed a new system of N-1N−1 pipes to transport milk between the NN stalls in his barn ( 2 \leq N \leq 50... 阅读全文
摘要:
Time Limit: 1 Sec Memory Limit: 256 MB Submit: 916 Solved: 408 [Submit][Status][Discuss] Description一个由自然数组成的数列按下式定义: 对于i k: a... 阅读全文