import java.util.ArrayList;import java.util.Scanner;public class Main { public static goods[] goodsList; public static ArrayList <activity> activityId; public static void main(String[] args) { Scanner in = new Scanner(System.in); while (in.hasNextInt()) {//注意while处理多个case int n = in.nextInt(); // goods int m = in.nextInt(); // requests int gid; int peple; int limitQuantity; goodsList = new goods[n]; for (int i = 0; i < n; i++) { gid = in.nextInt(); peple = in.nextInt(); limitQuantity = in.nextInt(); goods g = new goods(gid, peple, limitQuantity); goodsList[i] = g; } for (int i = 0; i < m; i++) { int currentStamp = in.nextInt(); String requestType = in.next(); switch (requestType){ case "add": { int res; int st = in.nextInt(); int et = in.nextInt();int gi = in.nextInt(); int limit = in.nextInt(); if (st > currentStamp && st < et) { res = addActivity(st, et, gi, limit); } else res = -1; System.out.println(res); } case "buy": { int res; int activid = in.nextInt(); int quantity = in.nextInt(); res = buyGoods(currentStamp,activid, quantity); System.out.println(res); } case "list": { ArrayList<activity> activiId = getActivityList(currentStamp); for (activity a: activiId ) { System.out.print(a.id+ " "); } } } } } } public static int addActivity(int st, int et,int gid, int Quantity){ if (!activityId.isEmpty()){ for (activity a: activityId ) { if (a.go.gid == gid){ // 已经加入过了,返回某值 return -1; }else { goods gForAct = null; for (int i = 0; i < goodsList.length; i++) { if (gid == goodsList[i].gid){ goods g = goodsList[i]; g.limitQuantity -= Quantity; // 修改商品参加活动后剩余库存 gForAct = new goods(gid, g.peple, Quantity); } } activityId.add(new activity(st, et, Quantity, gForAct)); return 1; } } }else { goods gForAct = null; for (int i = 0; i < goodsList.length; i++) { if (gid == goodsList[i].gid){ goods g = goodsList[i]; g.limitQuantity -= Quantity; gForAct = new goods(gid, g.peple, Quantity); } } activityId.add(new activity(st, et, Quantity, gForAct)); return 1; } return -1; } public static int buyGoods(int cuTime, int activid, int quantity){ if (activityId.isEmpty()){ return -1; }else { for (activity a: activityId ) { if (a.id == activid){ if (a.eti > cuTime){ if (quantity < a.go.limitQuantity){ a.go.limitQuantity -= quantity; return 1; }else return -1; // 没有合并判断是为了根据情况返回不同值,忘记题目了。。 }else return -1; }else return -1; } } return -1; } public static ArrayList getActivityList(int cuTime){ if (activityId.isEmpty()) return null; for (activity a:activityId ) { if (a.eti < cuTime){ // 活动a结束 } else { if (a.go.limitQuantity < 0){ // 活动a售罄 } else{ // 活动a在售 } } } // 按规定多级排序 activityId return activityId; } static class goods{ // 商品 private int gid; private int peple; private int limitQuantity; public goods(int g, int p, int l){ gid = g; peple = p; limitQuantity = l; } } static class activity{ // 秒杀活动 private goods go; private int id = 0; ; private int eti; private int sti; public activity(int st, int et, int Quantity, goods g){ id ++; go = g; go.limitQuantity = Quantity; sti = st; eti = et; } } }
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04-27 15:11
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华东师范大学 算法工程师
暑期实习从2月开始投,面了两个月,流程该挂的都挂完了,腾讯字节一共号称是1.7w个hc,不知道都发给谁了,估计今年秋招要难顶。Timeline米哈游、美团、蚂蚁、微软等公司直接简历挂穿,没进面。携程:3.3&nbsp;投递、测评3.12&nbsp;笔试3.18&nbsp;一面3.25&nbsp;二面4.13&nbsp;ai面(hr面)4.14&nbsp;英语测评4.23&nbsp;offer(已拒)腾讯:2.6&nbsp;测评2.28&nbsp;wxg一面3.5&nbsp;wxg二面(挂)3.11&nbsp;teg一面3.21&nbsp;teg二面(取消)3.31&nbsp;teg一面4.10&nbsp;teg二面(挂)4.21&nbsp;wxg一面4.24&nbsp;wxg二面(挂)字节:1.28&nbsp;aml约面(取消)3.17&nbsp;火山一面(挂)4.8&nbsp;aml一面(挂)4.20&nbsp;抖音data一面(挂)阿里:3.23&nbsp;投递、测评3.28&nbsp;笔试3.31&nbsp;淘天一面4.8&nbsp;钉钉一面4.9&nbsp;淘天二面4.10&nbsp;阿里控股一面4.12&nbsp;钉钉二面(取消)4.15&nbsp;淘天hr面4.16&nbsp;淘天offer(已接)4.21&nbsp;高德一面(取消)4.22&nbsp;淘宝闪购一面(取消)面试最大的感触是,现在撞上ai转型,一堆老业务急着转向,新业务非常不成熟,研究型的组bar非常高根本进不去,业务侧挂着算法的岗位干的都是工程活,面试却又要问算法,另外agent的落地也远没有那么广,绝大多数还是那套写死的系统调一下llm&nbsp;api或者做做rag,其余少部分真的在搭agent的,基本不能在线上服务用什么很智能的模型,现阶段成本太高,进去大概率就是给垃圾模型从工程方面兜底,除了业务场景的应用和数据经验以外,技术方面很难有什么提升。算法岗做不了基模的还是去搜广推好,之前判断失误了完全没投,秋招不知道还进不进得去。
嵌入式的小白:不错啊,淘天也是挺好的,恭喜
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