Graph

# ID Name Difficulty Solver
1 abc225_b C. Star or Not -345 12129
2 yahoo_procon2019_qual_b B. Path -122 5363
3 abc061_b B. Counting Roads 108 18487
4 abc204_c C. Tour 629 11908
5 abc362_d G. Shortest Path 3 634 9534
6 abc209_d D. Collision 686 9023
7 abc454_d G. (xx) 706 7516
8 abc376_d G. Cycle 743 8382
9 abc350_d G. New Friends 773 9579
10 abc420_e H. Reachability Query 790 6658
11 abc368_d G. Minimum Steiner Tree 816 8243
12 abc016_3 C. 友達の友達 830 5357
13 abc320_d G. Relative Position 873 7615
14 abc160_d D. Line++ 879 11832
15 abc138_d D. Ki 920 12269
16 abc315_e H. Prerequisites 921 6653
17 abc079_d D. Wall 949 7967
18 abc309_e H. Family and Insurance 957 6489
19 abc395_e H. Flip Edge 978 6473
20 abc088_d D. Grid Repainting 999 9925
21 abc218_e H. Destruction 1004 7293
22 abc291_e H. Find Permutation 1069 6308
23 abc239_e H. Subtree K-th Max 1084 6024
24 abc325_e H. Our clients, please wait a moment 1093 5226
25 arc037_b B. バウムテスト 1109 4292
26 abc286_e H. Souvenir 1128 4961
27 abc192_e E. Train 1135 6018
28 abc282_d G. Make Bipartite 2 1154 5750
29 abc328_e H. Modulo MST 1160 5592
30 abc012_4 D. バスと避けられない運命 1166 5360
31 abc070_d D. Transit Tree Path 1182 6610
32 abc277_e H. Crystal Switches 1183 5274
33 abc208_d D. Shortest Path Queries 2 1190 6876
34 abc146_d D. Coloring Edges on Tree 1192 7007
35 abc237_e H. Skiing 1208 5046
36 abc361_e H. Tree and Hamilton Path 2 1213 5731
37 abc256_e H. Takahashi's Anguish 1224 4914
38 agc014_b B. Unplanned Queries 1236 4014
39 abc054_c C. One-stroke Path 1244 10734
40 abc176_d D. Wizard in Maze 1248 8081
41 abc126_d D. Even Relation 1279 9661
42 abc296_e H. Transition Game 1285 4137
43 code_festival_morning_easy_c C. 身体バランス 1293 1295
44 abc252_e H. Road Reduction 1294 5323
45 abc357_e H. Reachability in Functional Graph 1295 5144
46 arc030_2 B. ツリーグラフ 1298 1858
47 abc235_e H. MST + 1 1304 5217
48 abc289_e H. Swap Places 1318 4653
49 abc191_e E. Come Back Quickly 1323 5210
50 abc021_c C. 正直者の高橋くん 1324 3153
51 arc111_b B. Reversible Cards 1334 3784
52 abc073_d D. joisino's travel 1345 5359
53 abc348_e H. Minimize Sum of Distances 1347 5070
54 agc039_b B. Graph Partition 1393 2918
55 abc245_f I. Endless Walk 1451 4404
56 abc342_e H. Last Train 1476 3609
57 arc011_3 C. ダブレット 1488 1455
58 abc022_c C. Blue Bird 1505 2874
59 nikkei2019_qual_d D. Restore the Tree 1541 2641
60 arc083_b D. Restoring Road Network 1563 5080
61 abc051_d D. Candidates of No Shortest Paths 1566 4794
62 abc035_d D. トレジャーハント 1591 3233
63 abc282_e H. Choose Two and Eat One 1604 4525
64 arc076_b D. Built? 1615 6644
65 abc383_e H. Sum of Max Matching 1616 3063
66 abc210_e E. Ring MST 1618 3161
67 zone2021_e E. Sneaking 1624 2263
68 abc132_e E. Hopscotch Addict 1625 5045
69 abc243_e H. Edge Deletion 1637 4576
70 soundhound2018_summer_qual_d D. Saving Snuuk 1637 2699
71 abc202_e E. Count Descendants 1638 5013
72 nikkei2019_2_qual_d D. Shortest Path on a Line 1647 2490
73 arc035_c C. アットコーダー王国の交通事情 1655 1420
74 codefestival_2016_qualB_c C. Gr-idian MST 1688 1856
75 arc022_3 C. ロミオとジュリエット 1694 1407
76 abc143_e E. Travel by Car 1695 4543
77 abc294_g G. Distance Queries on a Tree 1702 3395
78 arc056_b B. 駐車場 1726 1374
79 abc137_e E. Coins Respawn 1740 4051
80 arc044_b B. 最短路問題 1744 1358
81 abc387_f I. Count Arrays 1760 1959
82 agc013_b B. Hamiltonish Path 1763 2317
83 arc064_c E. Cosmic Rays 1769 2469
84 abc280_f I. Pay or Receive 1819 2471
85 agc044_a A. Pay to Win 1828 2686
86 abc270_f I. Transportation 1834 2782
87 abc061_d D. Score Attack 1838 4705
88 indeednow_2015_quala_4 D. パズル 1838 522
89 abc165_f F. LIS on Tree 1843 3764
90 abc014_4 D. 閉路 1856 2692
91 abc164_e E. Two Currencies 1877 3350
92 code_festival_2017_qualb_c C. 3 Steps 1883 2365
93 abc142_f F. Pure 1919 2413
94 jsc2019_qual_d D. Classified 1924 1418
95 arc008_3 C. THE☆たこ焼き祭り2012 1927 784
96 abc267_f I. Exactly K Steps 1939 3062
97 abc197_f F. Construct a Palindrome 1945 2879
98 arc025_3 C. ウサギとカメ 1954 822
99 abc216_g G. 01Sequence 1963 2426
100 abc152_f F. Tree and Constraints 1965 2590
101 abc170_f F. Pond Skater 1968 2747
102 arc029_3 C. 高橋君と国家 1973 998
103 arc065_b D. Connectivity 1996 5360
104 tenka1_2012_qualA_3 C. 敵対的引用 1996 347
105 arc045_c C. エックスオア多橋君 2022 882
106 agc035_b B. Even Degrees 2039 1817
107 agc027_c C. ABland Yard 2077 1478
108 abc291_h Ex. Balanced Tree 2097 1066
109 abc286_g G. Unique Walk 2135 1403
110 nikkei2019_2_qual_c C. Swaps 2136 1146
111 arc030_3 C. 有向グラフ 2180 521
112 abc362_f I. Perfect Matching on a Tree 2186 1541
113 arc063_c E. Integers on a Tree 2198 1676
114 agc015_c C. Nuske vs Phantom Thnook 2241 2461
115 arc052_c C. 高橋くんと不思議な道 2277 441
116 agc032_c C. Three Circuits 2284 1413
117 arc026_4 D. 道を直すお仕事 2297 1934
118 agc024_d D. Isomorphism Freak 2307 1117
119 arc049_c C. ぬりまーす 2308 359
120 arc090_c E. Avoiding Collision 2319 1683
121 arc115_d D. Odd Degree 2325 1058
122 abc133_f F. Colorful Tree 2330 2043
123 agc011_c C. Squared Graph 2355 1366
124 dwango2016qual_c C. メンテナンス明け 2384 202
125 jsc2021_g G. Spanning Tree 2451 461
126 abc364_g G. Last Major City 2455 819
127 arc084_b D. Small Multiple 2457 6765
128 agc028_c C. Min Cost Cycle 2463 1230
129 abc163_f F. path pass i 2470 1449
130 arc010_4 D. 情報伝播 2481 261
131 abc254_h Ex. Multiply or Divide by 2 2499 1085
132 arc061_c E. Snuke's Subway Trip 2502 2213
133 abc175_f F. Making Palindrome 2512 831
134 arc039_d D. 旅行会社高橋君 2550 334
135 arc093_c E. Bichrome Spanning Tree 2551 1112
136 tenka1_2015_qualA_d D. ハシポン 2559 118
137 abc306_g G. Return to 1 2563 701
138 keyence2019_e E. Connecting Cities 2623 912
139 abc210_f F. Coprime Solitaire 2632 908
140 arc018_4 D. 僕は友達が少ない 2644 160
141 discovery_2016_final_d D. ディスコ社内ツアーⅡ 2652 57
142 agc038_d D. Unique Path 2682 861
143 jsc2019_qual_e E. Card Collector 2691 707
144 abc155_f F. Perils in Parallel 2738 1239
145 tenka1_2014_qualA_e E. パズルの移動 2750 85
146 agc018_d D. Tree and Hamilton Path 2757 1159
147 arc103_d F. Distance Sums 2836 1599
148 agc016_e E. Poor Turkeys 3029 1371
149 arc045_d D. みんな仲良し高橋君 3039 194
150 arc048_d D. たこ焼き屋とQ人の高橋君 3062 151
151 codefestival_2016_final_g G. Zigzag MST 3072 459
152 arc021_4 D. だいたい最小全域木 3152 72
153 agc017_e E. Jigsaw 3158 653
154 arc062_d F. Painting Graphs with AtCoDeer 3175 594
155 abc269_h Ex. Antichain 3178 315
156 arc069_d F. Flags 3200 1252
157 agc006_f F. Blackout 3530 1131
158 agc027_f F. Grafting 3544 585
159 nikkei2019_2_qual_f F. Mirror Frame 3805 61
160 cf17_final_j J. Tree MST 3822 1024
161 typical90_c 003. Longest Circular Road（★4） null 9534
162 typical90_bz 078. Easy Graph Problem（★2） null 7824
163 typical90_z 026. Independent Set on a Tree（★4） null 5920
164 typical90_m 013. Passing（★5） null 5514
165 typical90_u 021. Come Back in One Piece（★5） null 4245
166 typical90_aq 043. Maze Challenge with Lack of Sleep（★4） null 3699
167 joi2008yo_f F. 船旅 null 2908
168 agc001_c C. Shorten Diameter null 2800
169 joi2016yo_e E. ゾンビ島 (Zombie Island) null 1942
170 practice2_g G. SCC null 1883
171 joisc2010_finals finals. 本選会場 (Finals) null 1595
172 joi2014yo_e E. タクシー (Taxis) null 1583
173 typical90_aw 049. Flip Digits 2（★6） null 1438
174 past201912_k K. Conglomerate null 1432
175 past202004_h H. 1-9 Grid null 1415
176 past201912_j J. Leveling null 1300
177 past201912_l L. Gradation null 1068
178 typical90_ai 035. Preserve Connectivity（★7） null 1028
179 tenka1_2016_qualA_b B. PackDrop null 778
180 mujin_pc_2018_d D. うほょじご null 775
181 code_festival_2018_final_a A. 2540 null 772
182 past202010_j J. ワープ null 711
183 maximum_cup_2018_c C. 嘘つきな天使たち null 686
184 past202005_m M. Real Traveling Salesman null 668
185 joi2015ho_c C. JOI 公園 (JOI Park) null 652
186 joi2017yo_f F. ヘビの JOI 君 (Snake JOI) null 644
187 typical90_bs 071. Fuzzy Priority（★7） null 640
188 iroha2019_day2_d D. 楽しすぎる家庭菜園 null 581
189 joi2021_yo2_b B. パンケーキ (Pancake) null 557
190 past202104_g G. One Step at a Time null 540
191 jsc2019_final_b B. Reachability null 532
192 past202010_m M. 筆塗り null 529
193 code_thanks_festival_2017_g G. Mixture Drug null 524
194 joig2021_e E. パレード (Parade) null 520
195 mujin_pc_2018_e E. 迷路 null 513
196 past202107_j J. Never Ending Journey null 504
197 joisc2007_route route. 象使い (Route) null 493
198 joi2011ho3 C. JOI 国の買い物事情 (Shopping in JOI Kingdom) null 492
199 joi2013ho3 3. 現代的な屋敷 (Modern Mansion) null 482
200 past202004_o O. Variable Spanning Trees null 472
201 joisc2008_flu flu. インフルエンザ (Flu) null 457
202 past202107_k K. Flying Trip null 442
203 joisc2008_sheet sheet. 色紙 (Sheet) null 437
204 qupc2018_c C. Ito Campus null 434
205 tkppc4_1_h H. don't be late null 433
206 wupc2012_5 E. 会場への道 null 428
207 indeednow_2015_finalb_d D. Game on a Grid null 423
208 joisc2009_advertisement advertisement. 宣伝 (Advertisement) null 400
209 past202104_l L. Urban Planning null 385
210 dwacon5th_final_a A. Taro vs. Jiro null 375
211 iroha2019_day1_i I. リスのお仕事 null 340
212 iroha2019_day2_g G. 通学路 null 338
213 icpc2012autumn_c C. Median Tree null 316
214 joisc2014_f F. 友だちをつくろう null 314
215 past202104_o O. Shortest Distance Query null 304
216 utpc2013_03 C. 直径 null 303
217 kupc2015_c C. 最短経路 null 276
218 yahoo_procon2019_final_b B. Bonsai Grafting null 248
219 asaporo_c A. Graph null 239
220 joi2012ho5 E. JOI 国のお祭り事情 (Festivals in JOI Kingdom) null 237
221 cf_2015_relay_f F. グラフの個数 null 236
222 joisc2014_j J. 電圧 null 226
223 kupc2017_e E. Treasure Hunt null 226
224 fuka_liquid C. 流れ null 216
225 ttpc2019_f F. Road Construction null 194
226 wupc2019_c C. Permutation City null 194
227 utpc2013_08 H. Asteroids2 null 193
228 ttpc2019_m M. Inversion Numbers of Tree null 190
229 joi2017ho_d D. サッカー (Soccer) null 183
230 code_festival_relay_f F. ループを探せ null 177
231 code_thanks_festival_2015_g G. カメレオン null 169
232 yahoo_procon2018_final_c C. 木の問題 null 164
233 s8pc_6_e E. 90-degree Rotations null 147
234 pakencamp_2019_day4_e E. IOI のために null 143
235 tenka1_2015_final_f F. 根付き木のみさわさん null 131
236 ddcc2017_final_c C. グラフいじり null 111
237 njpc2017_h H. 白黒ツリー null 110
238 iroha2019_day2_k K. 虫取り null 106
239 joisc2011_report report. 報告 (Report) null 105
240 code_festival_relay_i I. 信号待ち null 104
241 qupc2018_g G. Tapu & Tapi 2 null 103
242 nyc2015_5 E. ひも null 102
243 utpc2013_06 F. 魔法の糸 null 98
244 yuha_c88_d D. 氷柱の上の聖剣 null 97
245 yahoo_procon2018_qual_e E. グラフの問題 null 94
246 kupc2012_11 K. XOR回廊 null 90
247 maximum_cup_2018_e E. Interrupt Array null 90
248 joisc2012_building2 building2. ビルの飾り付け 2 null 87
249 cpsco2019_s2_g G. MSTX null 78
250 nikkei2019_final_f F. Flights null 78
251 utpc2013_09 I. 支配と友好 null 69
252 otemae2019_g G. 空をかけるピ太郎 (Pitaro, who Leaps through Air) null 68
253 nikkei2019_final_g G. Greatest Journey null 59
254 ttpc2015_n N. 何かグラフの問題 null 55
255 nikkei2019_2_final_d D. 木、 null 54
256 code_festival_exhibition_a A. パズル null 45
257 tenka1_2016_qualA_e E. 無限グラフ null 41
258 cpsco2019_s4_f F. Lost Tree null 41
259 dwacon6th_final_c C. Tree Shrinking null 38
260 dwacon5th_final_c C. Interval and MST null 32
261 k4pc_f F. タイトル未定(Untitled) null 20