Wanted

4815:problems_untagged

ID Name Difficulty Solver
agc004_e E. Salvage Robots 3205 884
abc300_h Ex. Fibonacci: Revisited 3209 188
abc275_h Ex. Monster 3210 271
arc130_f F. Replace by Average 3211 311
arc104_f F. Visibility Sequence 3213 629
agc070_b B. Odd Namori 3217 238
arc139_e E. Wazir 3222 213
arc175_e E. Three View Drawing 3223 313
arc177_e E. Wrong Scoreboard 3227 147
tenka1_2015_qualB_e E. 天下一演算 3228 17
abc227_h H. Eat Them All 3229 187
arc159_e E. Difference Sum Query 3229 174
arc105_f F. Lights Out on Connected Graph 3231 848
arc142_e E. Pairing Wizards 3232 569
arc165_f F. Make Adjacent 3235 406
arc144_e E. GCD of Path Weights 3238 348
arc133_e E. Cyclic Medians 3238 281
arc193_d D. Magnets 3240 152
arc219_g G. Traveling Door-to-Door Salesman (Stairs) 3240 52
arc213_c C. Double X 3241 78
arc199_d D. Limestone 3243 168
arc124_f F. Chance Meeting 3246 248
abc289_h Ex. Trio 3246 162
abc238_h Ex. Removing People 3247 225
arc159_f F. Good Division 3250 370
arc189_e E. Straight Path 3257 185
cf_2015_morning_hard_c C. 数列の組み替え 3258 29
abc301_g G. Worst Picture 3262 120
arc167_e E. One Square in a Triangle 3271 349
agc062_d D. Walk Around Neighborhood 3274 172
arc153_e E. Deque Minimization 3276 216
abc382_g G. Tile Distance 3 3278 72
abc279_h Ex. Sum of Prod of Min 3279 181
arc166_e E. Fizz Buzz Difference 3279 147
abc288_h Ex. A Nameless Counting Problem 3282 259
arc160_e E. Make Biconnected 3284 244
agc075_b B. Traffic Light 3284 73
tenka1_2014_qualB_e E. カラオケランキング 3284 7
arc204_d D. Favorite Interval 3290 110
arc218_f F. Buckets 3294 38
abc216_h H. Random Robots 3295 550
arc163_f F. Many Increasing Problems 3295 106
abc429_g G. Sum of Pow of Mod of Linear 3295 94
abc219_h H. Candles 3297 712
code_festival_morning_hard_d D. Rail Tour 3303 13
abc448_g G. Conquest 3305 59
abc280_h Ex. Substring Sort 3307 129
code_festival_final_j J. 2つのカップ 3309 53
agc014_e E. Blue and Red Tree 3312 918
arc137_f F. Overlaps 3313 112
abc381_g G. Fibonacci Product 3313 86
agc011_e E. Increasing Numbers 3315 779
code_festival_2017_qualc_f F. Three Gluttons 3315 248
agc059_d D. Distinct Elements on Subsegments 3319 186
abc265_h Ex. No-capture Lance Game 3319 141
agc036_d D. Negative Cycle 3326 854
arc183_e E. Ascendant Descendant 3331 158
arc169_e E. Avoid Boring Matches 3333 190
abc306_h Ex. Balance Scale 3335 749
arc115_f F. Migration 3336 327
arc129_e E. Yet Another Minimization 3337 314
arc163_e E. Chmin XOR Game 3338 198
agc056_b B. Range Argmax 3339 523
agc056_d D. Subset Sum Game 3339 328
abc260_h Ex. Colorfulness 3339 154
dwango2015_prelims_5 E. 電波局 3342 16
abc310_h Ex. Negative Cost 3343 240
abc345_g G. Sugoroku 5 3343 104
abc305_h Ex. Shojin 3344 261
agc067_d D. Unique Matching 3345 246
apc001_h H. Generalized Insertion Sort 3346 155
agc069_d D. Tree and Intervals 3346 145
abc398_g G. Not Only Tree Game 3352 210
abc363_g G. Dynamic Scheduling 3358 175
tenka1_2015_qualA_e E. 天下一魔法使い 3359 28
agc057_c C. Increment or Xor 3366 278
agc061_b B. Summation By Construction 3371 198
arc203_e E. Tile Grid with One Hole 3376 79
abc402_g G. Sum of Prod of Mod of Linear 3381 116
jsc2021_h H. Shipping 3383 141
tokiomarine2020_f F. Triangles 3385 107
agc068_e E. Sort and Match 3392 224
arc140_f F. ABS Permutation (Count ver.) 3392 182
agc060_d D. Same Descent Set 3394 239
abc412_g G. Degree Harmony 3402 88
ahc007_a A. Online MST 3403 811
agc077_d D. Range Replace 2 3412 82
arc220_d D. Long Trail 3412 64
arc187_e E. Replace Triplets 3414 109
abc317_h Ex. Walk 3426 74
agc009_e E. Eternal Average 3428 1023
abc370_g G. Divisible by 3 3428 137
arc112_f F. Die Siedler 3432 352
arc150_f F. Constant Sum Subsequence 3432 329
arc169_f F. Large DP Table 3434 129
arc184_e E. Accumulating Many Times 3443 126
agc060_e E. Number of Cycles 3452 126
abc330_g G. Inversion Squared 3455 92
agc052_e E. 3 Letters 3457 302
abc257_h Ex. Dice Sum 2 3461 142
keyence2021_f F. Keyence Repetition 3461 105
agc028_f F. Reachable Cells 3462 330
arc201_f F. CatCoder Triple Contest 3462 112
codefestival_2016_final_i I. Reverse Grid 3463 196
arc150_e E. Weathercock 3466 238
arc221_e E. Two Increasing Sequences 3471 42
agc030_f F. Permutation and Minimum 3474 858
arc172_f F. Walking 3474 94
abc222_h H. Beautiful Binary Tree 3477 306
arc164_f F. Subtree Reversi 3486 219
abc249_h Ex. Dye Color 3487 176
arc126_f F. Affine Sort 3488 90
agc049_e E. Increment Decrement 3496 371
agc054_e E. ZigZag Break 3499 252
arc158_f F. Random Radix Sort 3500 196
arc131_f F. ARC Stamp 3501 138
agc043_e E. Topology 3505 180
arc154_e E. Reverse and Inversion 3506 489
agc055_d D. ABC Ultimatum 3506 300
arc155_e E. Split and Square 3513 230
arc157_f F. XY Ladder LCS 3517 250
ahc010_a A. Loop Lines 3519 828
ahc013_a A. Server Room 3520 947
arc210_d D. Independent Set Game 3525 84
abc230_h H. Bullion 3528 148
arc134_f F. Flipping Coins 3530 161
agc066_d D. A Independent Set 3531 234
ahc014_a A. RectJoin 3540 785
arc125_f F. Tree Degree Subset Sum 3541 506
agc024_f F. Simple Subsequence Problem 3544 608
arc114_f F. Permutation Division 3545 345
arc180_e E. LIS and Inversion 3549 202
arc222_f F. Triple Transformation 3550 35
arc136_f F. Flip Cells 3554 140
agc008_e E. Next or Nextnext 3559 673
agc068_d D. Sum of Hash of Lexmin 3559 105
abc290_h Ex. Bow Meow Optimization 3569 300
codefestival_2016_final_h H. Tokaido 3569 168
agc076_c C. Slime Eat Slime 3572 60
ahc012_a A. AtCoder 10th Anniversary 3580 978
arc145_e E. Adjacent XOR 3581 235
arc149_f F. Rational Number System 3583 94
arc220_e E. popcount ≥ K 3583 74
agc025_e E. Walking on a Tree 3584 609
agc033_f F. Adding Edges 3591 395
ahc009_a A. Robust Memory of Commuting Routes 3594 1010
diverta2019_f F. Edge Ordering 3595 181
arc129_f F. Let's Play Tag 3596 81
agc019_e E. Shuffle and Swap 3597 562
arc153_f F. Tri-Colored Paths 3597 281
abc273_h Ex. Inv(0,1)ving Insert(1,0)n 3598 98
agc044_e E. Random Pawn 3599 424
abc311_h Ex. Many Illumination Plans 3605 235
agc022_f F. Checkers 3606 610
agc063_d D. Many CRT 3609 141
arc118_f F. Growth Rate 3610 258
ahc011_a A. Sliding Tree Puzzle 3615 1013
arc154_f F. Dice Game 3616 129
arc148_f F. 998244353 → 1000000007 3621 220
arc138_e E. Decreasing Subsequence 3624 306
agc045_d D. Lamps and Buttons 3625 455
arc109_f F. 1D Kingdom Builder 3625 166
abc399_g G. Colorful Spanning Tree 3625 55
agc061_d D. Almost Multiplication Table 3632 159
agc034_f F. RNG and XOR 3634 753
agc007_f F. Shik and Copying String 3642 865
abc434_g G. Keyboard 3645 86
arc156_e E. Non-Adjacent Matching 3650 191
agc023_e E. Inversions 3653 630
ahc024_a A. Topological Map 3660 801
arc152_f F. Attraction on Tree 3664 203
arc181_f F. Colorful Reversi 3664 107
asprocon10_a A. Crops on Grid 3667 914
asprocon10_b A-Final. Crops on Grid (System Test) 3667 708
ahc016_a A. Graphorean 3670 1143
arc119_f F. AtCoder Express 3 3671 357
arc128_f F. Game against Robot 3671 238
ahc018_a A. Excavation 3672 1064
ahc015_a A. Halloween Candy 3674 1020
ahc022_a A. Exploring Another Space 3680 1050
ahc019_a A. Silhouette Block Puzzle Creation 3680 833
ahc029_a A. Business Simulation Game 3680 832
agc076_d D. Stochastic Dominance 3683 30
ahc017_a A. Road Repair 3692 1001
arc166_f F. Tangent Addition Formula 3692 45
agc063_e E. Child to Parent 3700 116
agc067_b B. Modifications 3701 181
ahc020_a A. Broadcasting 3705 1159
ahc027_a A. Recurring Cleaning Route 3707 1064
agc035_e E. Develop 3720 465
agc074_d D. Valid Output for DSU Problems 3721 49
arc142_f F. Paired Wizards 3723 172
arc127_f F. ±AB 3723 170
arc171_f F. Both Reversible 3730 43
abc393_g G. Unevenness 3731 40
acl1_f F. Center Rearranging 3734 84
arc190_e E. Gaps of 1 or 2 3734 77
abc272_h Ex. Flipping Coins 2 3740 78
agc019_f F. Yes or No 3742 1214
ahc039_a A. Purse Seine Fishing 3744 867
arc151_f F. RGB Card Game 3744 105
arc144_f F. Arithmetic Sequence Nim 3744 47
ahc021_a A. Pyramid Sorting 3745 1292
code_festival_2017_qualc_e E. Cubes 3750 60
agc030_e E. Less than 3 3753 514
ahc026_a A. Stack of Boxes 3755 874
ahc062_a A. King's Tour 3764 753
ahc025_a A. Balancing by Balance 3765 925
apc001_g G. Colorful Doors 3765 99
abc278_h Ex. make 1 3768 76
agc046_e E. Permutation Cover 3772 179
arc174_f F. Final Stage 3773 94
nikkei2019_qual_f F. Jewels 3778 211
agc028_f2 F2. Reachable Cells 3778 195
ahc038_a A. Tree Robot Arm 3780 1020
ahc030_a A. Polyomino Mining 3781 1096
ahc028_a A. Lucky Words 3783 1064
agc036_f F. Square Constraints 3783 670
ahc031_a A. Event Hall 3785 1009
arc214_f F. Unpredictable Moves 3787 187
ahc036_a A. Efficient Signal Control 3793 1017
agc018_f F. Two Trees 3793 938
agc037_f F. Counting of Subarrays 3797 235
ahc034_a A. Leveling with a Dump Truck 3802 1091
ahc035_a A. Breed Improvement 3805 1142
agc071_d D. Level K Terms 3807 31
arc177_f F. Two Airlines 3810 99
ahc047_a A. Lovely Language Model 3814 1135
ahc032_a A. Mod Stamp 3818 1207
ahc045_a A. Oracle-Guided Road Network Planning 3819 1236
agc048_e E. Strange Relation 3819 192
ahc041_a A. Christmas Tree Cutting 3820 1145
arc135_f F. Delete 1, 4, 7, ... 3821 179
ahc052_a A. Single Controller Multiple Robots 3822 876
ahc065_a A. Conveyor Design 3822 734
ahc043_a A. Railway Company 3823 1378
agc058_e E. Nearer Permutation 3825 58
ahc037_a A. Soda 3827 1137
agc038_e E. Gachapon 3831 811
ahc060_a A. Ice Cream Collection 3832 788
arc182_f F. Graph of Mod of Linear 3837 42
ahc053_a A. Random Sum Game 3839 1102
ahc044_a A. Cleaning Up 3840 1182
agc059_e E. Grid 3-coloring 3842 189
ahc042_a A. Oni wa Soto, Fuku wa Uchi 3843 1133
ahc059_a A. Stack to Match Pairs 3846 827
ahc063_a A. Colorful Ouroboros 3850 1175
agc069_c C. AB*A Changing 3853 48
agc046_f F. Forbidden Tournament 3854 221
ahc064_a A. Non-Crossing Railcar Rearrangement 3856 850
ahc049_a A. Durability-Constrained Transport 3860 975
ahc057_a A. Molecules 3861 731
agc011_f F. Train Service Planning 3863 363
arc178_f F. Long Sequence Inversion 3863 41
agc022_d D. Shopping 3866 460
ahc066_a A. Macro Controller 3868 1210
arc170_f F. Edge Deletion 2 3874 68
ahc056_a A. Grid Turing Robot 3877 1076
agc056_e E. Cheese 3877 156
ahc046_a A. Skating with Blocks 3880 1089
ahc061_a A. Multi-Player Territory Game 3881 1105
ahc050_a A. Gamble on Ice 3882 1233
arc138_f F. KD Tree 3882 225
ahc055_a A. Weakpoint 3884 923
wtf22_day1_d D. Welcome to Tokyo! 3884 135
abc243_h Ex. Builder Takahashi (Enhanced version) 3884 113
wtf22_day1_e E. Sort A[i]-i 3884 40
wtf22_day1_c C. Shrink the Tree 3884 33
agc010_e E. Rearranging 3887 1052
agc031_f F. Walk on Graph 3887 292
agc065_f F. Always Perfect 3889 80
agc041_f F. Histogram Rooks 3893 441
agc061_e E. Increment or XOR 3901 217
agc013_f F. Two Faced Cards 3905 281
agc007_e E. Shik and Travel 3906 958
agc025_f F. Addition and Andition 3936 329
arc207_e E. Erase and Append 3936 99
arc145_f F. Modulo Sum of Increasing Sequences 3943 73
agc077_e E. Hamiltonian Path Inversion 3944 40
agc053_d D. Everyone is a winner 3949 64
arc167_f F. Tree Tree Tree 3951 13
mujin_pc_2017_d D. Oriented Tree 3960 86
agc032_f F. One Third 3975 427
agc004_f F. Namori 3986 878
cf17_final_h H. Poor Penguin 3988 123
cf17_final_i I. Full Tournament 3988 105
arc113_f F. Social Distance 3990 153
arc183_f F. Sum of Minimum Distance 3994 27
agc008_f F. Black Radius 3995 630
arc156_f F. Make Same Set 4011 265
arc147_f F. Again ABC String 4016 109
agc053_e E. More Peaks More Fun 4036 178
arc179_f F. All the Same 4037 78
agc072_d D. Magician 4043 47
arc176_f F. Colorful Star 4046 77
agc039_f F. Min Product Sum 4060 455
apc001_i I. Simple APSP Problem 4061 122
agc051_f F. rng_58's Last Problem 4061 81
agc051_e E. Middle Point 4061 68
apc001_j J. Rectangles 4061 55