周叔找的房子在城东一个老小区里，六楼，没电梯，两室一厅。小区是九十年代建的，外墙刷过两次，看着还算整洁。房子不大，但采光好，主卧朝南，冬天有太阳。周叔提前找人打扫过了，换了新锁，煤气水电都通好了。 宋瑶瑶搬进去那天是周日。宋明轩开车送她，后备箱里塞了一个行李箱和两床新被子。到了楼下，宋明轩帮她把箱子提上六楼。开门进去，他把箱子放在客厅地上，环顾了一圈。 “小了点。”他说。 “够住了。”宋瑶瑶站在窗边，把窗帘拉开。阳光照进来，落在旧地板上，暖融融的。 宋明轩从口袋里掏出一张卡放在桌上。 “第一个月房租爸出了。这张卡里是三个月的生活费，省着点花。” 宋瑶瑶看着那张卡，没有立刻去拿。 “哥，我说了自己付。” “三个月。”宋明轩说，“三个月之后你自己付。这三个月你攒点钱，万一工作上出什么岔子，手里有点底。” 宋瑶瑶想了想，把卡收了。 宋明轩走到门口，回头看了她一眼。 “冰箱里有周叔提前买的菜。锅碗瓢盆在橱柜里。缺什么跟周叔说。”他顿了一下，“每周日回家吃顿饭。爸说的。” 宋瑶瑶点了点头。 宋明轩走了。门关上之后，屋子里安静下来。宋瑶瑶站在客厅中央，听着窗外小区里隐隐约约的人声，和楼下谁家炒菜的油烟气飘上来。她在沙发上坐了一会儿，然后站起来，把行李箱打开，开始收拾。 衣服挂进衣柜，洗漱用品摆进卫生间，笔记本电脑放在卧室的小书桌上。收拾到一半，她从箱子最底下翻出来一样东西。是一个旧的笔袋，里面装着一支铅笔和一块橡皮。那是她初三时候用的，后来搬家的时候一直没扔。 她把笔袋放在书桌上，看了几秒，拉上了拉链。 第二天早上，她去宋氏大厦报到。老赵给她安排了一个工位，在技术部最角落的位置，给了她一台旧笔记本和一堆文档，让她先看。看了一上午，中午吃饭的时候她一个人去了楼下的便利店，买了个饭团，坐在大厦后面的花坛边上吃完了。 下午老赵让她整理测试用例，把文档里的案例一条一条录入系统。活不难，但很繁琐，几百条记录，每条都要核对字段。她录到第六十页的时候，眼睛花了，揉了揉，继续往下翻。 老赵路过她工位的时候，看了一眼屏幕，没说什么，走了。过了五分钟，他端了一杯咖啡过来，放在她桌上。 “别急，慢慢录。录错了更麻烦。” 宋瑶瑶点了点头，继续干。录到第七十页的时候，她发现文档里有一条用例的格式跟其他不一样，少了两个字段。她举手问老赵。 老赵过来看了一眼，皱起眉：“这个是我上周写的，好像漏了。你把这页单独标出来，我回头补。” 宋瑶瑶把那一页折了角，放在一边。老赵走了之后，她盯着那页看了几秒，忽然想起一件事。初三那年她第一次在论坛上找霜语要代码，对方发给她一段程序，末尾附了一行注释：“别只抄结果，看看过程。”她当时没当回事。 现在她知道了。过程就是这些枯燥的字段和用例。一条一条录，一条一条核对。抄结果的人永远停在抄的那一步，看过程的人才能往前走。 第一周结束的时候，老赵给她批了周报，写了一句：“录入速度偏慢，但零错误。下周提速。”她看着那行批注，笑了一下。 周日她回了宋家老宅。进门的时候，周叔正在摆碗筷，看到她来，多放了一双。宋国栋坐在沙发上看报纸，看到她，点了点头。沈清韵从厨房出来，端着一盘菜，看到她，脸上笑了一下。 江婉花已经在餐桌旁坐着了，面前一碗白粥，一碟咸菜。宋瑶瑶在她旁边坐下，周叔端了一碗汤过来。宋瑶瑶端起碗喝了一口，放下，说了一句：“周叔，我那边煤气灶的火不太稳，有时候打不着。” 周叔说：“回头我找人去修。” 宋国栋放下报纸，看了她一眼。 “住得惯吗？” 宋瑶瑶想了想。 “还行。就是晚上有点吵，隔壁那家养了条狗，半夜叫。” 宋国栋嘴角动了一下，像是要笑，又忍住了。 “住不惯就回来。”他说完，低头继续看报纸。 宋瑶瑶没接这话。她夹了一筷子菜，低头吃了。

坐位体前屈，一只手，有人帮忙压，极限-5 一般两只手，没人压，-10左右 800m，只有1m是快的，其它路程不比走路快多少，我还跑的累死 学校没操场，绕教学楼跑 排球垫球莫名的，最近只能垫到20几个 50米14秒，我果然是区 我仰卧起坐为什么是13个，我为什么跟区一样蠕动 为什么我才1.58 我为什么是53公斤左右啊 我班里有个23公斤的，还有赵一鸣(假名)是110.7公斤 我肺活量感觉不错，3628 我立定跳远145 https://www.acgo.cn/discuss/rest/96560 精心编辑，25年11月/12月首发

@日历午后‮🎶 傻。逼 滚 妈的 你个乐子日历午后 你比我班里同学还糖

[CSP-J 2022] 乘方 求 ab 的函数： pow(a, b) ，返回值是 double 类型。数据范围（整数）是： 1e16 求比较大的 ab 的方法：用循环一个个累乘计算。即，求 b 个 a 相乘的运算。 [CSP-J 2022] 解密 通过对题目中两个公式的变形，可以得到两个式子： p + q = n - ed + 2 ， p * q = n 法一：二次方程的求根公式和韦达定理算法 p 和q 法二： 考虑枚举 p 和 q ，在 [1, n - ed + 2] 的范围内枚举，这个时间复杂度是 O(nk) ，一定会超时。 所以考虑用二分枚举 p ，用 p * q = n 验证范围。 [CSP-J 2023] 一元二次方程 遇到模拟，先考虑怎么分类讨论。 分类讨论的依据是，方程的解的情况，解：无实数解，有实数解（有两个相同的实数解，有两个不同的实数解）

本文根据 ACGO 平台公开数据进行归纳整理，数据截至日期 2026 年 10 月。 一、用户 1.注册用户数：17012 二、题库 1.题目总数：25181 其中： ACGO：7486，占约 29.73% codeforces：10997，占约 43.67% atcoder：6698，占约 26.60% 2.ACGO： 入门：2254 普及-：1288 普及/提高-：1227 普及+/提高：764 提高+/省选-：772 省选/NOI-：879 NOI/NOI+/CTSC：302 3.codeforces： 入门：1860 普及-：1351 普及/提高-：1561 普及+/提高：1952 提高+/省选-：1742 省选/NOI-：1521 NOI/NOI+/CTSC：953 4.atcoder： 入门：1262 普及-：793 普及/提高-：306 普及+/提高：559 提高+/省选-：760 省选/NOI-：769 NOI/NOI+/CTSC：938 三、学习（题单） 1.总数：33 其中： 官方：25，占约 75.76% 用户分享：8，占约 24.24% 四、天梯 1.参与用户数量：7538+，占平台用户数约 44.31% 后记： 1.codeforces 和 atcoder 部分题目未评级，导致其平台各难度题目数总和不足平台题目总数。 2.本篇文章所有百分比采用四舍五入取舍。 3.本篇文章所有数据来源 ACGO，且全部为 ACGO 公开数据。 4.其实还有许多没统计进去，但我不想算了。等以后有时间再算。 BY YueDino 2026/10/21

我找回我的洛谷密码了！！！我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了我找回我的洛谷密码了 我可以不用在GO上生活了！！！

现在用pcl不可以下载mc原版的游戏了 这怎么办呀 我开一个团队，存放所有的原版游戏看看行不行吧？

🤡🤡🤡🤡🤡

如图，不知道为什么今天点开商城我的罐头数量就变成这样了！！！其实是我自己改的

我主页个人题库猜输入输出文件，第一个答对者评论晒截图，私信有小奖。(2026.11.10/第一个答对者出现截止)

细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐细思极恐 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 给大家说一个细思极恐的事 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 小朋友不建议亲自尝试 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 如果你在中元节那天午夜十二点，在厨房里那一些糯米放在手心，接着大喝一声去世的人的名字，并把手中的糯米撒向四周，你···································································································· 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如果有人不信的话可以亲自尝试一下 出事不关我的事

不是，我们学校都是运动员转世的吗 //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// #关于我们学校运动会现场感受 （成都七中初中学校的） 我告诉你们，太恐怖了！！！ 本人在运动会开始前被老师可汗大点兵点了个立定跳远 你知道这有多雷霆吗 （我跳远只能跳两米？ 今天去比赛，阴死我了 有个女生跳二米二五！ 本人最后也是荣誉的没进前三，只拿了个第六！！！ 那个六班，全都开了！就今天一天就加了二十多分 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 不过好消息是我们班接力赛还勉强拿了个第一

WRITE IN TY-YMH AND ZZZZZZSR（不处）。 众所周知，一场比赛需要一张头图。 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ I'm back! 我又来了！ 大家好，这里是 ZZSR 官方赛事命题组，我们将在？？？，为大家献上一场比赛，本场比赛由我和TY-Ymh联手完成，大家可以关注一下她。 比赛信息： 预计比赛时间： ？？？ 赛制：ACGO 题目数量：444 道。 题目 名称 简介 T1 ymhzsr 跳 T2 尼莫点 点 T3 起飞 ppl can fly T4 智慧树上智慧果 老梗 每道题等分。 奖品 由于本场比赛实在是太简单，所以奖项如下： Promax AK 奖：所有 AKer\tt{AKer}AKer 平分 888888888 罐头，所有在 111 小时内 AK 的选手平分 500500500 罐头（二者互不冲突）。 排名奖：除去所有 AKer\tt{AKer}AKer，排名 1∼81\sim 81∼8 的选手每人 100100100 罐头。 手速奖：每题的首A者得到 100100100 罐头。 反作弊奖：看这里。 本场比赛反作弊奖条件：不为 000 分的题目 ≥3\ge 3≥3 或 总分 >100>100>100。 本场比赛反作弊奖奖池：300300300 罐头。

和平求带 发ID

gcd(a,b)lcm(a,b)=ab 字符串的非空子串的个数是n*(n+1)/2 非空子序列：2的（序列长度）次方-1 汉字一个3字节 同一个变量在表达式里修改了两次（x和x）c++标准没有规定这两个操作的先后顺序——这属于未定义行为 阶乘末尾0数：向下取整（n/5）+向下取整（n/25）+向下取整（n/125）+......... n个盘子的汉诺塔移动次数：2的n次方减一 pow（）只能运算1e16内的东西，且返回类型为double 做提前记得看数据范围，算时间复杂度

#include<iostream> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ int x; cin>>x; if(x>=60){ cout<<x; return 0; } } cout<<-1; return 0; }加粗文本

#include <iostream> using namespace std; int main() { int n, sum = 0; cin >> n; for (int i = 1;i <= n; i++){ sum += i * i; } cout << sum; return 0; }

#include <iostream> using namespace std; int main() { int n, m, cnt = 0; cin >> n >> m; while(n > 0){ if(n % 10 == m) cnt++; n /= 10; } cout << cnt; return 0; }

#include <iostream> using namespace std; int main() { int n; cin >> n; int cnt = 0; // 步数，记得初始化为 0 // 当 n ≠1，做以下的事情： while (n != 1) { // 1. 如果 n 是偶数，除以 2；如果 n 是奇数，×3 + 1 if (n % 2 == 0) { n = n / 2; // n /= 2; } else { n = n * 3 + 1; } // 2. 步数加 1 cnt++; } cout << cnt; return 0; }

C++ 分支结构学习笔记整理 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 一、阶梯式判断（IF-ELSE IF-ELSE 多分支） 核心原理 利用 if-else if 的"短路"特性：只有前面的条件不成立，才会判断后面的条件。 通用模板 ⚠️ 两个常见陷阱 1. 顺序不能乱：n>=90 必须写在 n>=80 前面。如果先判断 n>=80，那么 95 分也会输出 "B"。 2. else 可省略：但省略后要确保逻辑完整，比如上面的例子如果去掉 else，n<60 时什么都不会输出。 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 二、逻辑运算符 运算符 名称 符号 规则 记忆口诀 与 AND && 两个都为 true → true；否则 false 全真才真 或 OR || 两个都为 false → false；否则 true 全假才假 非 NOT ! true 变 false，false 变 true 取反 真值表 a && b（与） a b 结果 true true true true false false false true false false false false a || b（或） a b 结果 true true true true false true false true true false false false !a（非） a 结果 true false false true 代码示例 ⚠️ 短路求值（重要特性） * &&：左边为 false 时，右边不会执行 * ||：左边为 true 时，右边不会执行 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 三、分支嵌套 核心思想 分支内部再套分支，条件的判断有先后顺序，也可能存在所属关系。 三种常见结构 1. 简单嵌套 2. 带 else 的内层 3. 内外都有 else 的完整结构 实例：判断一个数是否为"正偶数" ⚠️ 嵌套的关键注意点 1. 逻辑层次要清楚：内层判断通常是外层成立后才需要考虑的细分情况。 2. else 的配对规则：else 总是与最近的、还未配对的 if 配对。建议一律加 {} 避免歧义。 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 四、三者结合的综合示例 判断某年某月有多少天： 这个例子同时体现了： * 阶梯式判断（月大/月小/2月三分支） * 逻辑运算符（&& 判断闰年、|| 列举小月） * 分支嵌套（2月内部再判断闰年） ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 五、易错点总结 易错点 说明 = vs == 判断相等用 ==，= 是赋值 阶梯判断顺序 范围判断要从大到小或从小到大有序排列 && / || 优先级 && 优先级高于 ||，复杂表达式加括号 悬空 else 嵌套时 else 配最近 if，建议加 {} 短路副作用 依赖短路可避免除零/越界，但别把重要计算放右边 回放：https://live-admin.xiaomawang.com/teacher/view-record?videourl=https://xm-live.oss-cn-shanghai.aliyuncs.com/AgoraRecordStream/merged_LIVE0YMMTB8A0QY9B8TLNAEM9UB6IWEP.m3u8