lldb报错:Terminating app due to uncaught exception 'NSGenericException', reason: '*** Collection <__NSArrayM: 0x7f9a5a47dda0> was mutated while being enumerated.' bug代码: //判断是否存在,存在就删除 for (NSDictionary *dic in userAccountPwdMutalDatas) { if ([dic obj
题目1 : Visiting Peking University 时间限制:1000ms 单点时限:1000ms 内存限制:256MB 描述 Ming is going to travel for n days and the date of these days can be represented by n integers: 0, 1, 2, …, n-1. He plans to spend m consecutive days(2 ≤ m ≤ n)in Beijing. During
/** * Determine whether the given object is an array: * either an Object array or a primitive array. * @param obj the object to check */ public static boolean isArray(Object obj) { return (obj != null && obj.getClass().isArray()); } /** * Determin