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链接：https://ac.nowcoder.com/acm/contest/984/A来源：牛客网时间限制：C/C++ 1秒，其他语言2秒空间限制：C/C++ 32768K，其他语言65536K64bit IO Format: %lld题目描述Some of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hai...

链接：https://ac.nowcoder.com/acm/contest/881/A来源：牛客网时间限制：C/C++ 2秒，其他语言4秒空间限制：C/C++ 524288K，其他语言1048576K64bit IO Format: %lld题目描述Two arrays u and v each with m distinct elements are called equ...

链接：https://ac.nowcoder.com/acm/contest/882/H来源：牛客网时间限制：C/C++ 1秒，其他语言2秒空间限制：C/C++ 262144K，其他语言524288K64bit IO Format: %lld题目描述Given a N×MN×M binary matrix. Please output the size of second l...