Graph

# ID Name Difficulty Solver
1 abc225_b B. Star or Not -345 11490
2 yahoo_procon2019_qual_b B. Path -122 5212
3 abc061_b B. Counting Roads 108 17284
4 abc204_c C. Tour 629 11318
5 abc362_d D. Shortest Path 3 634 8956
6 abc209_d D. Collision 686 8675
7 abc376_d D. Cycle 743 7852
8 abc350_d D. New Friends 773 8799
9 abc420_e E. Reachability Query 790 5897
10 abc368_d D. Minimum Steiner Tree 816 7853
11 abc016_3 C. 友達の友達 830 5247
12 abc320_d D. Relative Position 873 7231
13 abc160_d D. Line++ 879 11591
14 abc138_d D. Ki 920 11751
15 abc315_e E. Prerequisites 921 6357
16 abc079_d D. Wall 949 7720
17 abc309_e E. Family and Insurance 957 6188
18 abc395_e E. Flip Edge 978 6085
19 abc088_d D. Grid Repainting 999 9448
20 abc218_e E. Destruction 1004 6717
21 abc291_e E. Find Permutation 1069 5854
22 abc239_e E. Subtree K-th Max 1084 5720
23 abc325_e E. Our clients, please wait a moment 1093 4921
24 arc037_b B. バウムテスト 1109 4184
25 abc286_e E. Souvenir 1128 4677
26 abc192_e E. Train 1135 5821
27 abc282_d D. Make Bipartite 2 1154 5394
28 abc328_e E. Modulo MST 1160 5341
29 abc012_4 D. バスと避けられない運命 1166 5193
30 abc070_d D. Transit Tree Path 1182 6367
31 abc277_e E. Crystal Switches 1183 4900
32 abc208_d D. Shortest Path Queries 2 1190 6573
33 abc146_d D. Coloring Edges on Tree 1192 6826
34 abc237_e E. Skiing 1208 4744
35 abc361_e E. Tree and Hamilton Path 2 1213 5416
36 abc256_e E. Takahashi's Anguish 1224 4597
37 agc014_b B. Unplanned Queries 1236 3927
38 abc054_c C. One-stroke Path 1244 10272
39 abc176_d D. Wizard in Maze 1248 7708
40 abc126_d D. Even Relation 1279 9244
41 abc296_e E. Transition Game 1285 3944
42 code_festival_morning_easy_c C. 身体バランス 1293 1290
43 abc252_e E. Road Reduction 1294 4934
44 abc357_e E. Reachability in Functional Graph 1295 4866
45 arc030_2 B. ツリーグラフ 1298 1825
46 abc235_e E. MST + 1 1304 4848
47 abc289_e E. Swap Places 1318 4421
48 abc191_e E. Come Back Quickly 1323 5020
49 abc021_c C. 正直者の高橋くん 1324 3069
50 arc111_b B. Reversible Cards 1334 3649
51 abc073_d D. joisino's travel 1345 5205
52 abc348_e E. Minimize Sum of Distances 1347 4750
53 agc039_b B. Graph Partition 1393 2850
54 abc245_f F. Endless Walk 1451 4081
55 abc342_e E. Last Train 1476 3441
56 arc011_3 C. ダブレット 1488 1431
57 abc022_c C. Blue Bird 1505 2810
58 nikkei2019_qual_d D. Restore the Tree 1541 2617
59 arc083_b D. Restoring Road Network 1563 4948
60 abc051_d D. Candidates of No Shortest Paths 1566 4640
61 abc035_d D. トレジャーハント 1591 3161
62 abc282_e E. Choose Two and Eat One 1604 4072
63 arc076_b D. Built? 1615 6193
64 abc383_e E. Sum of Max Matching 1616 2859
65 abc210_e E. Ring MST 1618 3031
66 zone2021_e E. Sneaking 1624 2211
67 abc132_e E. Hopscotch Addict 1625 4790
68 abc243_e E. Edge Deletion 1637 4262
69 soundhound2018_summer_qual_d D. Saving Snuuk 1637 2653
70 abc202_e E. Count Descendants 1638 4584
71 nikkei2019_2_qual_d D. Shortest Path on a Line 1647 2441
72 arc035_c C. アットコーダー王国の交通事情 1655 1357
73 codefestival_2016_qualB_c C. Gr-idian MST 1688 1838
74 arc022_3 C. ロミオとジュリエット 1694 1385
75 abc143_e E. Travel by Car 1695 4286
76 abc294_g G. Distance Queries on a Tree 1702 2935
77 arc056_b B. 駐車場 1726 1358
78 abc137_e E. Coins Respawn 1740 3846
79 arc044_b B. 最短路問題 1744 1344
80 abc387_f F. Count Arrays 1760 1807
81 agc013_b B. Hamiltonish Path 1763 2264
82 arc064_c E. Cosmic Rays 1769 2411
83 abc280_f F. Pay or Receive 1819 2294
84 agc044_a A. Pay to Win 1828 2653
85 abc270_f F. Transportation 1834 2521
86 abc061_d D. Score Attack 1838 4476
87 indeednow_2015_quala_4 D. パズル 1838 522
88 abc165_f F. LIS on Tree 1843 3581
89 abc014_4 D. 閉路 1856 2563
90 abc164_e E. Two Currencies 1877 3079
91 code_festival_2017_qualb_c C. 3 Steps 1883 2290
92 abc142_f F. Pure 1919 2349
93 jsc2019_qual_d D. Classified 1924 1401
94 arc008_3 C. THE☆たこ焼き祭り2012 1927 776
95 abc267_f F. Exactly K Steps 1939 2751
96 abc197_f F. Construct a Palindrome 1945 2572
97 arc025_3 C. ウサギとカメ 1954 824
98 abc216_g G. 01Sequence 1963 2275
99 abc152_f F. Tree and Constraints 1965 2450
100 abc170_f F. Pond Skater 1968 2650
101 arc029_3 C. 高橋君と国家 1973 981
102 arc065_b D. Connectivity 1996 5162
103 tenka1_2012_qualA_3 C. 敵対的引用 1996 341
104 arc045_c C. エックスオア多橋君 2022 868
105 agc035_b B. Even Degrees 2039 1749
106 agc027_c C. ABland Yard 2077 1443
107 abc291_h Ex. Balanced Tree 2097 995
108 abc286_g G. Unique Walk 2135 1290
109 nikkei2019_2_qual_c C. Swaps 2136 1136
110 arc030_3 C. 有向グラフ 2180 515
111 abc362_f F. Perfect Matching on a Tree 2186 1425
112 arc063_c E. Integers on a Tree 2198 1603
113 agc015_c C. Nuske vs Phantom Thnook 2241 2188
114 arc052_c C. 高橋くんと不思議な道 2277 436
115 agc032_c C. Three Circuits 2284 1357
116 arc026_4 D. 道を直すお仕事 2297 1908
117 agc024_d D. Isomorphism Freak 2307 1091
118 arc049_c C. ぬりまーす 2308 354
119 arc090_c E. Avoiding Collision 2319 1580
120 arc115_d D. Odd Degree 2325 1001
121 abc133_f F. Colorful Tree 2330 1921
122 agc011_c C. Squared Graph 2355 1305
123 dwango2016qual_c C. メンテナンス明け 2384 198
124 jsc2021_g G. Spanning Tree 2451 455
125 abc364_g G. Last Major City 2455 782
126 arc084_b D. Small Multiple 2457 5841
127 agc028_c C. Min Cost Cycle 2463 1189
128 abc163_f F. path pass i 2470 1395
129 arc010_4 D. 情報伝播 2481 259
130 abc254_h Ex. Multiply or Divide by 2 2499 1024
131 arc061_c E. Snuke's Subway Trip 2502 2087
132 abc175_f F. Making Palindrome 2512 806
133 arc039_d D. 旅行会社高橋君 2550 328
134 arc093_c E. Bichrome Spanning Tree 2551 1068
135 tenka1_2015_qualA_d D. ハシポン 2559 116
136 abc306_g G. Return to 1 2563 666
137 keyence2019_e E. Connecting Cities 2623 878
138 abc210_f F. Coprime Solitaire 2632 818
139 arc018_4 D. 僕は友達が少ない 2644 159
140 discovery_2016_final_d D. ディスコ社内ツアーⅡ 2652 56
141 agc038_d D. Unique Path 2682 833
142 jsc2019_qual_e E. Card Collector 2691 609
143 abc155_f F. Perils in Parallel 2738 1198
144 tenka1_2014_qualA_e E. パズルの移動 2750 89
145 agc018_d D. Tree and Hamilton Path 2757 1093
146 arc103_d F. Distance Sums 2836 1545
147 agc016_e E. Poor Turkeys 3029 1275
148 arc045_d D. みんな仲良し高橋君 3039 189
149 arc048_d D. たこ焼き屋とQ人の高橋君 3062 160
150 codefestival_2016_final_g G. Zigzag MST 3072 438
151 arc021_4 D. だいたい最小全域木 3152 71
152 agc017_e E. Jigsaw 3158 617
153 arc062_d F. Painting Graphs with AtCoDeer 3175 544
154 abc269_h Ex. Antichain 3178 288
155 arc069_d F. Flags 3200 1167
156 agc006_f F. Blackout 3530 1012
157 agc027_f F. Grafting 3544 571
158 nikkei2019_2_qual_f F. Mirror Frame 3805 63
159 cf17_final_j J. Tree MST 3822 922
160 typical90_c 003. Longest Circular Road（★4） null 8744
161 typical90_bz 078. Easy Graph Problem（★2） null 7224
162 typical90_z 026. Independent Set on a Tree（★4） null 5458
163 typical90_m 013. Passing（★5） null 5075
164 typical90_u 021. Come Back in One Piece（★5） null 3908
165 typical90_aq 043. Maze Challenge with Lack of Sleep（★4） null 3377
166 joi2008yo_f F. 船旅 null 2786
167 agc001_c C. Shorten Diameter null 2629
168 joi2016yo_e E. ゾンビ島 (Zombie Island) null 1833
169 practice2_g G. SCC null 1717
170 joisc2010_finals finals. 本選会場 (Finals) null 1511
171 joi2014yo_e E. タクシー (Taxis) null 1484
172 past201912_k K. Conglomerate null 1386
173 past202004_h H. 1-9 Grid null 1382
174 typical90_aw 049. Flip Digits 2（★6） null 1324
175 past201912_j J. Leveling null 1283
176 past201912_l L. Gradation null 1051
177 typical90_ai 035. Preserve Connectivity（★7） null 931
178 tenka1_2016_qualA_b B. PackDrop null 777
179 code_festival_2018_final_a A. 2540 null 774
180 mujin_pc_2018_d D. うほょじご null 768
181 past202010_j J. ワープ null 690
182 maximum_cup_2018_c C. 嘘つきな天使たち null 672
183 past202005_m M. Real Traveling Salesman null 656
184 joi2015ho_c C. JOI 公園 (JOI Park) null 596
185 joi2017yo_f F. ヘビの JOI 君 (Snake JOI) null 576
186 iroha2019_day2_d D. 楽しすぎる家庭菜園 null 576
187 typical90_bs 071. Fuzzy Priority（★7） null 574
188 jsc2019_final_b B. Reachability null 532
189 past202104_g G. One Step at a Time null 516
190 mujin_pc_2018_e E. 迷路 null 511
191 code_thanks_festival_2017_g G. Mixture Drug null 509
192 past202010_m M. 筆塗り null 500
193 past202107_j J. Never Ending Journey null 485
194 joi2021_yo2_b B. パンケーキ (Pancake) null 471
195 past202004_o O. Variable Spanning Trees null 461
196 joig2021_e E. パレード (Parade) null 448
197 joi2011ho3 C. JOI 国の買い物事情 (Shopping in JOI Kingdom) null 447
198 joisc2007_route route. 象使い (Route) null 440
199 past202107_k K. Flying Trip null 439
200 joi2013ho3 3. 現代的な屋敷 (Modern Mansion) null 437
201 tkppc4_1_h H. don't be late null 427
202 wupc2012_5 E. 会場への道 null 422
203 qupc2018_c C. Ito Campus null 421
204 joisc2008_flu flu. インフルエンザ (Flu) null 415
205 indeednow_2015_finalb_d D. Game on a Grid null 413
206 joisc2008_sheet sheet. 色紙 (Sheet) null 393
207 past202104_l L. Urban Planning null 378
208 dwacon5th_final_a A. Taro vs. Jiro null 375
209 joisc2009_advertisement advertisement. 宣伝 (Advertisement) null 364
210 iroha2019_day1_i I. リスのお仕事 null 337
211 iroha2019_day2_g G. 通学路 null 332
212 icpc2012autumn_c C. Median Tree null 315
213 joisc2014_f F. 友だちをつくろう null 303
214 utpc2013_03 C. 直径 null 303
215 past202104_o O. Shortest Distance Query null 297
216 kupc2015_c C. 最短経路 null 279
217 yahoo_procon2019_final_b B. Bonsai Grafting null 249
218 asaporo_c A. Graph null 239
219 cf_2015_relay_f F. グラフの個数 null 238
220 kupc2017_e E. Treasure Hunt null 226
221 fuka_liquid C. 流れ null 225
222 joisc2014_j J. 電圧 null 224
223 joi2012ho5 E. JOI 国のお祭り事情 (Festivals in JOI Kingdom) null 209
224 ttpc2019_m M. Inversion Numbers of Tree null 194
225 ttpc2019_f F. Road Construction null 193
226 wupc2019_c C. Permutation City null 192
227 utpc2013_08 H. Asteroids2 null 190
228 joi2017ho_d D. サッカー (Soccer) null 181
229 code_festival_relay_f F. ループを探せ null 178
230 code_thanks_festival_2015_g G. カメレオン null 169
231 yahoo_procon2018_final_c C. 木の問題 null 156
232 s8pc_6_e E. 90-degree Rotations null 146
233 pakencamp_2019_day4_e E. IOI のために null 143
234 tenka1_2015_final_f F. 根付き木のみさわさん null 130
235 ddcc2017_final_c C. グラフいじり null 111
236 njpc2017_h H. 白黒ツリー null 111
237 code_festival_relay_i I. 信号待ち null 107
238 joisc2011_report report. 報告 (Report) null 102
239 iroha2019_day2_k K. 虫取り null 101
240 qupc2018_g G. Tapu & Tapi 2 null 100
241 nyc2015_5 E. ひも null 99
242 yuha_c88_d D. 氷柱の上の聖剣 null 98
243 yahoo_procon2018_qual_e E. グラフの問題 null 97
244 utpc2013_06 F. 魔法の糸 null 97
245 maximum_cup_2018_e E. Interrupt Array null 91
246 kupc2012_11 K. XOR回廊 null 89
247 joisc2012_building2 building2. ビルの飾り付け 2 null 82
248 cpsco2019_s2_g G. MSTX null 78
249 nikkei2019_final_f F. Flights null 78
250 utpc2013_09 I. 支配と友好 null 68
251 otemae2019_g G. 空をかけるピ太郎 (Pitaro, who Leaps through Air) null 68
252 nikkei2019_final_g G. Greatest Journey null 58
253 ttpc2015_n N. 何かグラフの問題 null 55
254 nikkei2019_2_final_d D. 木、 null 51
255 code_festival_exhibition_a A. パズル null 45
256 cpsco2019_s4_f F. Lost Tree null 41
257 tenka1_2016_qualA_e E. 無限グラフ null 40
258 dwacon6th_final_c C. Tree Shrinking null 38
259 dwacon5th_final_c C. Interval and MST null 32
260 k4pc_f F. タイトル未定(Untitled) null 20