Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2424	P3394 机器人的领域洛谷月赛	0 / 0	6
	2204	P3395 路障模拟 O2优化广度优先搜索,BFS	0 / 0	3
	2207	P3396 哈希冲突 O2优化根号分治	0 / 0	4
	2409	P3397 地毯枚举前缀和	3 / 13	2
	2426	P3398 仓鼠找 sugar 倍增 Tarjan 最近公共祖先,LCA 洛谷月赛	0 / 0	4
	2202	P3399 丝绸之路动态规划,dp 洛谷月赛	6 / 21	3
	2205	P3400 仓鼠窝单调队列洛谷原创洛谷月赛	0 / 0	5
	2206	P3401 洛谷树线段树洛谷原创树链剖分洛谷月赛	0 / 0	6
	2195	P3402 可持久化并查集并查集可持久化	0 / 0	6
	2196	P3403 跳楼机图论	1 / 1	5
	2422	P3405 [USACO16DEC] Cities and States S 2016 USACO	0 / 0	2
	2193	P3406 海底高铁前缀和	0 / 0	3
	2415	P3407 散步枚举	0 / 0	4
	2431	P3408 恋爱动态规划,dp	0 / 0	4
	2430	P3409 值日班长值周班长数学	0 / 0	5
	2432	P3410 拍照网络流	0 / 0	6
	2452	P3411 序列变换动态规划,dp	0 / 0	5
	2408	P3412 仓鼠找sugar II 洛谷原创概率论期望洛谷月赛	0 / 0	6
	2450	P3413 SAC#1 - 萌数动态规划,dp 洛谷原创数位 dp 洛谷月赛	0 / 0	6
	2451	P3414 SAC#1 - 组合数数学组合数学洛谷月赛	1 / 1	3
	2453	P3415 祭坛线段树	0 / 0	6
	2470	P3416 [USACO16DEC] Moocast S 2016 USACO	0 / 0	3
	2477	P3417 [POI 2005] BANK-Cash Dispenser 2005 POI	0 / 0	5
	2478	P3418 [POI 2005] PUN-Points 2005 并查集 POI 最短路	0 / 0	6
	2479	P3419 [POI 2005] SAM-Toy Cars 贪心 2005 POI 优先队列队列	0 / 0	5
	2480	P3420 [POI 2005] SKA-Piggy Banks 2005 并查集 POI 连通块	0 / 0	3
	2481	P3421 [POI 2005] SKO-Knights 2005 POI Special Judge	0 / 0	5
	2482	P3422 [POI 2005] LOT-A Journey to Mars 2005 单调队列 POI 前缀和	0 / 0	5
	2483	P3423 [POI 2005] BAN-Bank Notes 动态规划,dp 2005 POI Special Judge	0 / 0	4
	2484	P3424 [POI 2005] SUM-Fibonacci Sums 贪心 2005 POI 斐波那契,Fibonacci	0 / 0	5
	2485	P3425 [POI 2005] KOS-Dicing 2005 POI 网络流 Special Judge 生成树最小割	0 / 0	6
	2486	P3426 [POI 2005] SZA-Template 树形数据结构 2005 平衡树 POI KMP	0 / 1	6
	2487	P3427 [POI 2005] DZI-Hollows 2005 POI	0 / 0	6
	2488	P3428 [POI 2005] AKC-Special Forces Manoeuvres 计算几何 2005 POI	0 / 0	6
	2489	P3429 [POI 2005] DWA-Two Parties 贪心 2005 POI Special Judge	0 / 0	6
	2490	P3430 [POI 2005] DWU-Double-row 2005 POI	0 / 0	5
	2491	P3431 [POI 2005] AUT-The Bus 动态规划,dp 递推 2005 树状数组 POI	0 / 0	5
	2492	P3432 [POI 2005] LUS-Mirror Trap 贪心 2005 POI	0 / 0	6
	2493	P3433 [POI 2005] PRA-Dextrogyrate Camel 2005 POI	0 / 0	7
	2494	P3434 [POI 2006] KRA-The Disks 2006 POI	0 / 0	3
	2495	P3435 [POI 2006] OKR-Periods of Words 2006 POI KMP	1 / 1	5
	2496	P3436 [POI 2006] PRO-Professor Szu 动态规划,dp 2006 POI 拓扑排序 Tarjan	0 / 0	5
	2497	P3437 [POI 2006] TET-Tetris 3D 2006 线段树 POI	0 / 0	5
	2498	P3438 [POI 2006] ZAB-Frogs 2006 二分单调队列 POI 广度优先搜索,BFS	0 / 0	6
	2499	P3439 [POI 2006] MAG-Warehouse 数学 2006 POI Special Judge	0 / 0	6
	2500	P3440 [POI 2006] SZK-Schools 2006 POI 深度优先搜索,DFS 最大流最小割	0 / 0	6
	2501	P3441 [POI 2006] MET-Subway 贪心 2006 POI	0 / 0	6
	2502	P3442 [POI 2006] NAJ-The Invasion 2006 POI 凸包	0 / 0	6
	2503	P3443 [POI 2006] LIS-The Postman 2006 POI Special Judge 欧拉回路	0 / 0	6
	2504	P3444 [POI 2006] ORK-Ploughing 2006 POI	0 / 0	6
	2505	P3445 [POI 2006] TAN-Dancing in Circles 2006 POI	0 / 0	6
	2506	P3446 [POI 2006] EST-Aesthetic Text 2006 POI	0 / 0	6
	2507	P3447 [POI 2006] KRY-Crystals 2006 POI	0 / 0	6
	2508	P3448 [POI 2006] MIS-Teddies 2006 POI	0 / 0	4
	2509	P3449 [POI 2006] PAL-Palindromes 2006 POI 哈希,HASH 字典树,Trie	0 / 0	6
	2510	P3450 [POI 2006] ZOS-Sophie 2006 POI	0 / 0	6
	2511	P3451 [POI 2007] ATR-Tourist Attractions 动态规划,dp 2007 POI O2优化状态压缩最短路	0 / 0	6
	2512	P3452 [POI 2007] BIU-Offices 2007 线性数据结构 POI 深度优先搜索,DFS	2 / 12	5
	2513	P3453 [POI 2007] DRZ-Trees 2007 线段树 POI	0 / 0	6
	2514	P3454 [POI 2007] OSI-Axes of Symmetry 字符串计算几何 2007 POI KMP	0 / 0	6
	2515	P3455 [POI 2007] ZAP-Queries 2007 POI 最大公约数,gcd 莫比乌斯反演	1 / 1	5
	2516	P3456 [POI 2007] GRZ-Ridges and Valleys 2007 POI 广度优先搜索,BFS	0 / 0	4
	2517	P3457 [POI 2007] POW-The Flood 贪心 2007 并查集 POI	0 / 0	5
	2518	P3458 [POI 2007] SKA-Rock Garden 2007 POI 枚举	0 / 0	6
	2519	P3459 [POI 2007] MEG-Megalopolis 2007 线段树树状数组 POI 深度优先搜索,DFS 栈	0 / 0	5
	2520	P3460 [POI 2007] TET-Tetris Attack 贪心 2007 树状数组 POI Special Judge 栈	0 / 0	6
	2521	P3461 [POI 2007] KOL-Railway 2007 POI Special Judge	0 / 0	(None)
	2522	P3462 [POI 2007] ODW-Weights 搜索贪心 2007 POI 进制	0 / 0	6
	2523	P3463 [POI 2007] EGZ-Driving Exam 动态规划,dp 2007 POI	0 / 0	5
	2524	P3464 [POI 2007] WAG-Quaternary Balance 动态规划,dp 2007 POI 进制	0 / 2	6
	2525	P3465 [POI 2008] CLO-Toll 2008 并查集 POI Special Judge	0 / 0	5
	2526	P3466 [POI 2008] KLO-Building blocks 2008 平衡树 POI Special Judge	0 / 0	5
	2527	P3467 [POI 2008] PLA-Postering 2008 POI 栈	0 / 0	3
	2528	P3468 [POI 2008] ROB-Robinson 2008 POI	0 / 0	6
	2529	P3469 [POI 2008] BLO-Blockade 2008 POI Tarjan 割点	0 / 0	5
	2530	P3470 [POI 2008] BBB-BBB 2008 单调队列 POI	0 / 0	6
	2531	P3471 [POI 2008] POC-Trains 2008 平衡树 POI 离散化哈希,HASH	0 / 0	6
	2532	P3472 [POI 2008] MAF-Mafia 贪心 2008 POI	0 / 0	6
	2533	P3473 [POI 2008] UCI-The Great Escape 动态规划,dp 2008 POI	0 / 0	6
	2534	P3474 [POI 2008] KUP-Plot purchase 贪心 2008 单调队列 POI Special Judge	0 / 0	6
	2535	P3475 [POI 2008] POD-Subdivision of Kingdom 动态规划,dp 2008 POI Special Judge 深度优先搜索,DFS 状态压缩	0 / 0	5
	2536	P3476 [POI 2008] TRO-Triangles 计算几何 2008 POI 深度优先搜索,DFS 叉积	0 / 0	6
	2537	P3477 [POI 2008] PER-Permutation 2008 POI	0 / 0	6
	2538	P3478 [POI 2008] STA-Station 动态规划,dp 树形数据结构 2008 POI Special Judge O2优化	7 / 23	4
	2539	P3479 [POI 2009] GAS-Fire Extinguishers 贪心 2009 POI	0 / 0	6
	2540	P3480 [POI 2009] KAM-Pebbles 博弈论 2009 POI	0 / 0	6
	2541	P3481 [POI 2009] PRZ-Algorithm Speedup 2009 POI	0 / 0	6
	2542	P3482 [POI 2009] SLO-Elephants 2009 POI 置换	0 / 0	5
	2543	P3483 [POI 2009] STR-Fire Brigade 2009 树状数组 POI	0 / 0	(None)
	2544	P3484 [POI 2009] WYS-Isles in a Triangular Grid 2009 POI	0 / 0	5
	2545	P3485 [POI 2009] BAJ-The Walk of Bytie-boy 动态规划,dp 2009 POI Special Judge 广度优先搜索,BFS	0 / 0	6
	2546	P3486 [POI 2009] KON-Ticket Inspector 动态规划,dp 2009 POI	0 / 0	5
	2547	P3487 [POI 2009] ARC-Architects 2009 单调队列 POI	0 / 0	5
	2548	P3488 [POI 2009] LYZ-Ice Skates 2009 线段树 POI	0 / 0	6
	2549	P3489 [POI 2009] WIE-Hexer 动态规划,dp 2009 POI 最短路	0 / 0	5
	2550	P3490 [POI 2009] FIB-Words 2 2009 POI	0 / 0	(None)
	2551	P3491 [POI 2009] SLW-Words 2009 POI 枚举	0 / 0	5
	2552	P3492 [POI 2009] TAB-Arrays 模拟 2009 POI	0 / 0	5
	2553	P3493 [POI 2009] WSP-Island 计算几何 2009 POI Special Judge 半平面交	0 / 0	6
	2554	P3494 [POI 2009] KOD-The Code 2009 POI 深度优先搜索,DFS	0 / 0	(None)

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