Online Judge System
PCMS Online Judge System

An Online Judge System For Begneers

AC: Accept.
NA: Not Accepted. Some test cases were not currect.
WA: Wrong Answer with the line number and current answer.
TLE: Time Limit Exceed.
MLE: Memory Limit Exceed.
OLE: Output Limit Exceed.
RE: Runtime Error e.q.: Out of range in Array.
RF: Restricted Function.
CE: Compile Error. The Compiler
SE: System Error, undefined Errors.

本系統目前支援的程式語言如下:

User's guide | 我要加題目

Announcement

KGOI 2026 第二季 (2026-03-25 10:17)
KGOI-S 2026 Season 1 (PCOI 2025 Season 2 预热赛) 排行榜 (2026-03-02 14:51)
zero1 -> hydro (2026-02-10 23:00)
PCOI 2025 第一季 題目清單 (2025-10-22 20:28)
PCOI 2023 第二季 題目 (2024-02-24 23:45)

Latest Problems

b368. 停車場收費
b708. 水題
b711. 奇偶校验
b710. 药房管理
b709. 判断能否被 3,5,7 整除
a119. 等差數列末項計算
b707. 班中男女生統計
a888. 約瑟夫環問題
b700. 最高的分数
b679. 骑车与走路
b699. 樂樂的得分
b698. 倒帶人生2
a173. 有效的括號
b697. 字母轉換 -- P5704 【深基2.例6】
b682. 兩數之和
b681. 求最大的乘積
b575. 兼職 (parttime) -- MOI-2026MOI-J 2026
b576. 收拾球⼦ (balls) -- MOI-2026MOI-S 2026
b578. 社群 (comm) -- MOI-2026MOI-S 2026
b577. 爬上爬落 (climb) -- MOI-2026MOI-S 2026
b680. 找最長有效的括號長度
b572. 轉轉轉 (round) -- MOI-2026MOI-P 2026
b570. 差別 (gaps) -- MOI-2026MOI-P 2026
b573. 換錢黨 (exchange) -- MOI-2026MOI-J 2026
Top Coder
1361145-3@g.... (S4A29陳偉祺)
834/83%
826/83%
1360174-1@g.... (S4A03何彥樂)
766/77%
1554101-0@g.... (S2B27黃宇彬)
741/74%
1453222-0@g.... (S3B08余汶憲)
735/74%
1454884-4@g.... (S3A06吳雨慧)
733/73%
1454530-6@g.... (S3A14區叡恆)
724/72%
1360198-9@g.... (黃彥信S4A35)
712/71%
1164114-2@g.... (S6B32戴卓妍)
708/71%
1452945-9@g.... (S3F39羅振軒)
691/69%
more...
Top Author
kichan@g.pui... (陳嘉賢CHAN KA IN)
ricky (電腦黃)
lamkinun@gma... (Kinda Lam)
admin (Judge)
zero (管理員)
kulam@g.puic... (林建源)
cwng@g.puich... (吳振華NG CHAN WA)
xllin@g.puic... (Emily Lin)
issin@g.puic... (冼一心老師)
1360174-1@g.... (S4A03何彥樂)
Top School
1: Pui Ching Middle School
2: Pui Ching Middle SchooI
more...