摘要：
题目链接： 题目 "F. Polycarp and Hay" time limit per test: 4 seconds memory limit per test: 512 megabytes input: standard input output: standard output 问题描述 阅读全文
摘要：
题目链接： 题目 "How far away ？" Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) 问题描述 There are n houses in the village and 阅读全文