Login
Enregistrez
QOJ.ac
QOJ
QOJ
Concours
Category
Problèmes
Soumissions
Hack!
Live
Afficher les étiquettes
Afficher les statistiques
21
22
23
24
25
26
27
28
29
30
31
ID
Problème
Interactive
Output Only
Communication
Évaluation
#2501
Olympic Bus
JOI 2019/2020
#2502
Fire
JOI 2019/2020
#2505
报数
NOIP 2021
#2506
数列
NOIP 2021
#2507
方差
NOIP 2021
#2508
棋局
NOIP 2021
#2509
Right-Coupled Numbers
Taipei-Hsinchu Regional 2020
#2510
Make Numbers
Taipei-Hsinchu Regional 2020
#2511
Pyramid
Taipei-Hsinchu Regional 2020
#2512
Quality Monitoring
Taipei-Hsinchu Regional 2020
#2513
A Color Game
Taipei-Hsinchu Regional 2020
#2514
Cable Protection
Taipei-Hsinchu Regional 2020
#2515
Graph Cards
Taipei-Hsinchu Regional 2020
#2516
Optimization for UltraNet
Taipei-Hsinchu Regional 2020
#2517
Critical Structures
Taipei-Hsinchu Regional 2020
#2518
Puzzle Game
Taipei-Hsinchu Regional 2020
#2519
Number with Bachelors
Taipei-Hsinchu Regional 2020
#2520
Save lives or money
Taipei-Hsinchu Regional 2020
#2521
Keystroke
Taipei-Hsinchu Regional 2020
#2522
Autonomous Vehicle
Seoul Regional 2020
#2523
Commemorative Dice
Seoul Regional 2020
#2524
Dessert Café
Seoul Regional 2020
#2525
Electric Vehicle
Seoul Regional 2020
#2526
Imprecise Computer
Seoul Regional 2020
#2527
Ink Mix
Seoul Regional 2020
#2528
Mobile Robot
Seoul Regional 2020
#2529
Needle
Seoul Regional 2020
#2530
Stock Analysis
Seoul Regional 2020
#2531
Switches
Seoul Regional 2020
#2532
Tiling Polyomino
Seoul Regional 2020
#2533
Two Buildings
Seoul Regional 2020
#2534
Lampice
COCI 2021/2022 Contest #3
#2535
Cijanobakterije
COCI 2021/2022 Contest #3
#2536
Akcija
COCI 2021/2022 Contest #3
#2537
Ekoeko
COCI 2021/2022 Contest #3
#2538
Kućice
COCI 2021/2022 Contest #3
#2539
Announcements
Petrozavodsk Winter 2022 Day 1
#2540
Build The Grid
Petrozavodsk Winter 2022 Day 1
#2541
Coins and Boxes
Petrozavodsk Winter 2022 Day 1
#2542
Destructive Game
Petrozavodsk Winter 2022 Day 1
#2543
Edges, Colors and MST
Petrozavodsk Winter 2022 Day 1
#2544
Flatland Currency
Petrozavodsk Winter 2022 Day 1
#2545
Game with Balls and Boxes
Petrozavodsk Winter 2022 Day 1
#2546
High Powers
Petrozavodsk Winter 2022 Day 1
#2547
Items and Heroes
Petrozavodsk Winter 2022 Day 1
#2548
Juggler's Trick
Petrozavodsk Winter 2022 Day 1
#2549
King's Palace
Petrozavodsk Winter 2022 Day 1
#2550
Lion and Zebra
Petrozavodsk Winter 2022 Day 1
#2551
Math String
Petrozavodsk Winter 2022 Day 1
#2552
Points
Petrozavodsk Winter 2022 Day 2
#2553
Bingo
Petrozavodsk Winter 2022 Day 2
#2554
AND PLUS OR
Petrozavodsk Winter 2022 Day 2
#2555
Two Bullets
Petrozavodsk Winter 2022 Day 2
#2556
Yet Another Interval Graph Problem
Petrozavodsk Winter 2022 Day 2
#2557
Lag
Petrozavodsk Winter 2022 Day 2
#2558
Critical Vertex
Petrozavodsk Winter 2022 Day 2
#2559
Endless Road
Petrozavodsk Winter 2022 Day 2
#2560
Streetlights
Petrozavodsk Winter 2022 Day 2
#2561
Diameter Pair Sum
Petrozavodsk Winter 2022 Day 2
#2562
Fake Plastic Trees 2
Petrozavodsk Winter 2022 Day 2
#2563
Curly Racetrack
Petrozavodsk Winter 2022 Day 2
#2564
Two Trees
Petrozavodsk Winter 2022 Day 3
#2565
Tarzan Jumps
Petrozavodsk Winter 2022 Day 3
#2566
Inversions
Petrozavodsk Winter 2022 Day 3
#2567
Hidden Rook
Petrozavodsk Winter 2022 Day 3
Interactive
#2568
Mountains
Petrozavodsk Winter 2022 Day 3
#2569
Kill All Termites
Petrozavodsk Winter 2022 Day 3
#2570
Maximal Subsequence
Petrozavodsk Winter 2022 Day 3
#2571
Aidana and Pita
Petrozavodsk Winter 2022 Day 3
#2572
Box Packing
Petrozavodsk Winter 2022 Day 3
#2573
Two Permutations
Petrozavodsk Winter 2022 Day 3
#2574
Fancy Arrays
Petrozavodsk Winter 2022 Day 3
#2575
Restricted Arrays
Petrozavodsk Winter 2022 Day 3
#2576
麻将
ZJOI 2019 Day 1
#2577
线段树
ZJOI 2019 Day 1
#2578
Minimax 搜索
ZJOI 2019 Day 1
#2579
开关
ZJOI 2019 Day 2
#2580
语言
ZJOI 2019 Day 2
#2581
浙江省选
ZJOI 2019 Day 2
#2582
物理实验
SDOI 2018
#2583
战略游戏
SDOI 2018
#2584
反回文串
SDOI 2018
#2585
原题识别
SDOI 2018
#2586
旧试题
SDOI 2018
#2587
荣誉称号
SDOI 2018
#2588
甲苯先生的字符串
TJOI 2019
#2589
甲苯先生的滚榜
TJOI 2019
#2590
唱、跳、rap和篮球
TJOI 2019
#2591
大中锋的游乐场
TJOI 2019
#2592
甲苯先生和大中锋的字符串
TJOI 2019
#2593
甲苯先生的线段树
TJOI 2019
#2594
Ants
Petrozavodsk Winter 2022 Day 5
#2595
Interesting Subsegments
Petrozavodsk Winter 2022 Day 5
#2596
Even Forest
Petrozavodsk Winter 2022 Day 5
#2597
Yellow Blue Bus
Petrozavodsk Winter 2022 Day 5
#2598
Permutation Matrix
Petrozavodsk Winter 2022 Day 5
#2599
Anti-stress
Petrozavodsk Winter 2022 Day 5
#2600
Mismatch
Petrozavodsk Winter 2022 Day 5
21
22
23
24
25
26
27
28
29
30
31