Wanted

2716:problems_untagged

ID Name Difficulty Solver
abc225_h H. Social Distance 2 3061 216
tenka1_2012_12 D. ゆうびんやさんのお花畑 3066 18
arc132_f F. Takahashi The Strongest 3076 249
abc276_h Ex. Construct a Matrix 3087 189
code_festival_2017_quala_f F. Squeezing Slimes 3091 247
abc323_g G. Inversion of Tree 3091 94
arc118_e E. Avoid Permutations 3092 395
arc120_f F. Wine Thief 3094 293
mujin_pc_2017_c C. Robot and String 3096 271
nomura2020_f F. Sorting Game 3097 222
arc136_e E. Non-coprime DAG 3100 483
abc313_f F. Flip Machines 3100 320
abc215_h H. Cabbage Master 3101 288
arc176_e E. Max Vector 3101 99
arc161_f F. Everywhere is Sparser than Whole (Judge) 3106 208
abc251_h Ex. Fill Triangle 3108 143
abc217_h H. Snuketoon 3112 458
abc262_g G. LIS with Stack 3114 236
discovery_2016_qual_d D. DDPC特別ビュッフェ 3116 43
agc065_d D. Not Intersect 3117 126
arc116_f F. Deque Game 3125 279
abc284_h Ex. Count Unlabeled Graphs 3125 146
arc107_f F. Sum of Abs 3130 545
arc146_e E. Simple Speed 3131 302
code_festival_final_g G. 魔方陣 3132 35
arc161_e E. Not Dyed by Majority (Cubic Graph) 3136 227
abc336_g G. 16 Integers 3138 143
arc132_e E. Paw 3144 401
dwango2016qual_e E. 花火 3144 125
arc135_e E. Sequence of Multiples 3157 256
agc058_d D. Yet Another ABC String 3159 324
abc270_h Ex. add 1 3159 241
arc117_e E. Zero-Sum Ranges 2 3166 409
agc023_d D. Go Home 3173 688
arc170_e E. BDFS 3174 163
abc304_g G. Max of Medians 3177 190
abc269_h Ex. Antichain 3178 174
abc281_h Ex. Alchemy 3180 147
tenka1_2013_qualB_d D. 天下一二三パズル リベンジ 3182 17
abc240_h Ex. Sequence of Substrings 3184 408
arc149_e E. Sliding Window Sort 3188 244
arc130_e E. Increasing Minimum 3188 171
arc162_f F. Montage 3190 273
abc274_h Ex. XOR Sum of Arrays 3191 151
abc285_h Ex. Avoid Square Number 3192 213
arc160_f F. Count Sorted Arrays 3202 190
agc004_e E. Salvage Robots 3205 697
abc300_h Ex. Fibonacci: Revisited 3209 141
abc275_h Ex. Monster 3210 155
arc130_f F. Replace by Average 3211 132
arc104_f F. Visibility Sequence 3213 333
arc139_e E. Wazir 3222 181
arc175_e E. Three View Drawing 3223 128
tenka1_2015_qualB_e E. 天下一演算 3228 18
abc227_h H. Eat Them All 3229 153
arc159_e E. Difference Sum Query 3229 146
arc105_f F. Lights Out on Connected Graph 3231 428
arc142_e E. Pairing Wizards 3232 294
arc165_f F. Make Adjacent 3235 192
arc133_e E. Cyclic Medians 3238 210
arc144_e E. GCD of Path Weights 3238 201
arc124_f F. Chance Meeting 3246 204
abc289_h Ex. Trio 3246 141
abc238_h Ex. Removing People 3247 176
arc159_f F. Good Division 3250 238
cf_2015_morning_hard_c C. 数列の組み替え 3258 17
abc301_g G. Worst Picture 3262 96
arc167_e E. One Square in a Triangle 3271 266
agc062_d D. Walk Around Neighborhood 3274 105
arc153_e E. Deque Minimization 3276 177
abc279_h Ex. Sum of Prod of Min 3279 127
arc166_e E. Fizz Buzz Difference 3279 107
abc288_h Ex. A Nameless Counting Problem 3282 166
arc160_e E. Make Biconnected 3284 164
tenka1_2014_qualB_e E. カラオケランキング 3284 9
abc216_h H. Random Robots 3295 282
arc163_f F. Many Increasing Problems 3295 77
abc219_h H. Candles 3297 385
code_festival_morning_hard_d D. Rail Tour 3303 12
abc280_h Ex. Substring Sort 3307 93
code_festival_final_j J. 2つのカップ 3309 15
agc014_e E. Blue and Red Tree 3312 694
arc137_f F. Overlaps 3313 97
agc011_e E. Increasing Numbers 3315 603
code_festival_2017_qualc_f F. Three Gluttons 3315 160
abc265_h Ex. No-capture Lance Game 3319 117
agc059_d D. Distinct Elements on Subsegments 3319 110
agc036_d D. Negative Cycle 3326 575
arc169_e E. Avoid Boring Matches 3333 109
abc306_h Ex. Balance Scale 3335 253
arc115_f F. Migration 3336 181
arc129_e E. Yet Another Minimization 3337 223
arc163_e E. Chmin XOR Game 3338 152
agc056_b B. Range Argmax 3339 323
agc056_d D. Subset Sum Game 3339 235
abc260_h Ex. Colorfulness 3339 121
dwango2015_prelims_5 E. 電波局 3342 7
abc310_h Ex. Negative Cost 3343 129
abc345_g G. Sugoroku 5 3343 70
abc305_h Ex. Shojin 3344 102
apc001_h H. Generalized Insertion Sort 3346 121
tenka1_2015_qualA_e E. 天下一魔法使い 3359 18
agc057_c C. Increment or Xor 3366 210
agc061_b B. Summation By Construction 3371 134
jsc2021_h H. Shipping 3383 110
tokiomarine2020_f F. Triangles 3385 103
arc140_f F. ABS Permutation (Count ver.) 3392 129
agc060_d D. Same Descent Set 3394 154
abc317_h Ex. Walk 3426 62
agc009_e E. Eternal Average 3428 720
arc112_f F. Die Siedler 3432 248
arc150_f F. Constant Sum Subsequence 3432 124
arc169_f F. Large DP Table 3434 83
agc060_e E. Number of Cycles 3452 99
abc330_g G. Inversion Squared 3455 71
agc052_e E. 3 Letters 3457 166
abc257_h Ex. Dice Sum 2 3461 113
keyence2021_f F. Keyence Repetition 3461 95
agc028_f F. Reachable Cells 3462 259
codefestival_2016_final_i I. Reverse Grid 3463 163
arc150_e E. Weathercock 3466 127
agc030_f F. Permutation and Minimum 3474 585
arc172_f F. Walking 3474 66
abc222_h H. Beautiful Binary Tree 3477 211
arc164_f F. Subtree Reversi 3486 136
abc249_h Ex. Dye Color 3487 112
arc126_f F. Affine Sort 3488 82
agc049_e E. Increment Decrement 3496 186
agc054_e E. ZigZag Break 3499 188
arc158_f F. Random Radix Sort 3500 125
arc131_f F. ARC Stamp 3501 86
agc043_e E. Topology 3505 165
arc154_e E. Reverse and Inversion 3506 380
agc055_d D. ABC Ultimatum 3506 168
arc155_e E. Split and Square 3513 172
arc157_f F. XY Ladder LCS 3517 156
ahc010_a A. Loop Lines 3519 792
ahc013_a A. Server Room 3520 931
abc230_h H. Bullion 3528 128
arc134_f F. Flipping Coins 3530 128
agc066_d D. A Independent Set 3531 66
ahc014_a A. RectJoin 3540 766
arc125_f F. Tree Degree Subset Sum 3541 322
agc024_f F. Simple Subsequence Problem 3544 484
arc114_f F. Permutation Division 3545 190
arc136_f F. Flip Cells 3554 112
agc008_e E. Next or Nextnext 3559 528
abc290_h Ex. Bow Meow Optimization 3569 183
codefestival_2016_final_h H. Tokaido 3569 127
ahc012_a A. AtCoder 10th Anniversary 3580 920
arc145_e E. Adjacent XOR 3581 147
arc149_f F. Rational Number System 3583 72
agc025_e E. Walking on a Tree 3584 412
agc033_f F. Adding Edges 3591 281
ahc009_a A. Robust Memory of Commuting Routes 3594 957
diverta2019_f F. Edge Ordering 3595 110
arc129_f F. Let's Play Tag 3596 65
agc019_e E. Shuffle and Swap 3597 436
arc153_f F. Tri-Colored Paths 3597 128
abc273_h Ex. Inv(0,1)ving Insert(1,0)n 3598 63
agc044_e E. Random Pawn 3599 330
abc311_h Ex. Many Illumination Plans 3605 105
agc022_f F. Checkers 3606 452
agc063_d D. Many CRT 3609 84
arc118_f F. Growth Rate 3610 200
ahc011_a A. Sliding Tree Puzzle 3615 981
arc154_f F. Dice Game 3616 112
arc148_f F. 998244353 → 1000000007 3621 144
arc138_e E. Decreasing Subsequence 3624 182
agc045_d D. Lamps and Buttons 3625 228
arc109_f F. 1D Kingdom Builder 3625 107
agc061_d D. Almost Multiplication Table 3632 84
agc034_f F. RNG and XOR 3634 477
agc007_f F. Shik and Copying String 3642 622
arc156_e E. Non-Adjacent Matching 3650 129
agc023_e E. Inversions 3653 494
ahc024_a A. Topological Map 3660 767
arc152_f F. Attraction on Tree 3664 69
asprocon10_a A. Crops on Grid 3667 894
asprocon10_b A-Final. Crops on Grid (System Test) 3667 708
ahc016_a A. Graphorean 3670 1118
arc119_f F. AtCoder Express 3 3671 247
arc128_f F. Game against Robot 3671 93
ahc018_a A. Excavation 3672 1053
ahc015_a A. Halloween Candy 3674 937
ahc022_a A. Exploring Another Space 3680 1022
ahc019_a A. Silhouette Block Puzzle Creation 3680 826
ahc029_a A. Business Simulation Game 3680 805
ahc017_a A. Road Repair 3692 956
arc166_f F. Tangent Addition Formula 3692 25
agc063_e E. Child to Parent 3700 66
ahc020_a A. Broadcasting 3705 1099
ahc027_a A. Recurring Cleaning Route 3707 1010
agc035_e E. Develop 3720 366
arc127_f F. ±AB 3723 138
arc142_f F. Paired Wizards 3723 129
arc171_f F. Both Reversible 3730 26
acl1_f F. Center Rearranging 3734 52
abc272_h Ex. Flipping Coins 2 3740 70
agc019_f F. Yes or No 3742 835
arc151_f F. RGB Card Game 3744 68
arc144_f F. Arithmetic Sequence Nim 3744 47
ahc021_a A. Pyramid Sorting 3745 1243
code_festival_2017_qualc_e E. Cubes 3750 52
agc030_e E. Less than 3 3753 385
ahc026_a A. Stack of Boxes 3755 826
ahc025_a A. Balancing by Balance 3765 915
apc001_g G. Colorful Doors 3765 85
abc278_h Ex. make 1 3768 60
agc046_e E. Permutation Cover 3772 140
arc174_f F. Final Stage 3773 57
agc028_f2 F2. Reachable Cells 3778 160
nikkei2019_qual_f F. Jewels 3778 148
ahc030_a A. Polyomino Mining 3781 1067
ahc028_a A. Lucky Words 3783 985
agc036_f F. Square Constraints 3783 477
ahc031_a A. Event Hall 3785 981
agc018_f F. Two Trees 3793 605
agc037_f F. Counting of Subarrays 3797 191
ahc032_a A. Mod Stamp 3818 1033
agc048_e E. Strange Relation 3819 136
arc135_f F. Delete 1, 4, 7, ... 3821 131
agc058_e E. Nearer Permutation 3825 49
agc038_e E. Gachapon 3831 543
agc059_e E. Grid 3-coloring 3842 108
agc046_f F. Forbidden Tournament 3854 128
agc011_f F. Train Service Planning 3863 287
agc022_d D. Shopping 3866 381
arc170_f F. Edge Deletion 2 3874 26
agc056_e E. Cheese 3877 115
arc138_f F. KD Tree 3882 87
abc243_h Ex. Builder Takahashi (Enhanced version) 3884 95
wtf22_day1_d D. Welcome to Tokyo! 3884 42
wtf22_day1_c C. Shrink the Tree 3884 21
wtf22_day1_e E. Sort A[i]-i 3884 10
agc010_e E. Rearranging 3887 809
agc031_f F. Walk on Graph 3887 240
agc065_f F. Always Perfect 3889 24
agc041_f F. Histogram Rooks 3893 241
agc061_e E. Increment or XOR 3901 73
agc013_f F. Two Faced Cards 3905 205
agc007_e E. Shik and Travel 3906 690
agc025_f F. Addition and Andition 3936 270
arc145_f F. Modulo Sum of Increasing Sequences 3943 64
agc053_d D. Everyone is a winner 3949 57
arc167_f F. Tree Tree Tree 3951 10
mujin_pc_2017_d D. Oriented Tree 3960 57
agc032_f F. One Third 3975 329
agc004_f F. Namori 3986 674
cf17_final_h H. Poor Penguin 3988 114
cf17_final_i I. Full Tournament 3988 90
arc113_f F. Social Distance 3990 106
agc008_f F. Black Radius 3995 391
arc156_f F. Make Same Set 4011 137
arc147_f F. Again ABC String 4016 68
agc053_e E. More Peaks More Fun 4036 104
arc176_f F. Colorful Star 4046 12
agc039_f F. Min Product Sum 4060 300
apc001_i I. Simple APSP Problem 4061 107
agc051_f F. rng_58's Last Problem 4061 60
agc051_e E. Middle Point 4061 52
apc001_j J. Rectangles 4061 44
agc047_f F. Rooks 4066 89
agc064_e E. Cross Sum Construction 4069 17
agc050_f F. NAND Tree 4076 81
agc015_f F. Kenus the Ancient Greek 4083 374
agc061_f F. Perfect Strings 4084 61
agc057_e E. RowCol/ColRow Sort 4128 100
agc057_f F. Reflection 4128 74
arc141_f F. Well-defined Abbreviation 4134 131
agc021_f F. Trinity 4145 450
agc014_f F. Strange Sorting 4201 259
agc062_e E. Overlap Binary Tree 4233 31
agc065_e E. One Two Three 4235 9
agc063_f F. Simultaneous Floor 4273 19
agc055_f F. Creative Splitting 4288 56
agc054_f F. Decrement 4300 48
agc056_f F. Degree Sequence in DFS Order 4310 79
agc043_f F. Jewelry Box 4347 89
agc045_f F. Division into Multiples 4383 84
abc298_a A. Job Interview null 11661
abc299_a A. Treasure Chest null 11103
abc306_b B. Base 2 null 10522
abc304_b B. Subscribers null 9783
abc299_b B. Trick Taking null 9238
tessoku_book_a A01. The First Problem null 8529
abc298_b B. Coloring Matrix null 8216
math_and_algorithm_a 001. Print 5+N null 7461
tessoku_book_b A02. Linear Search null 7229
tessoku_book_c A03. Two Cards null 6580
math_and_algorithm_b 002. Sum of 3 Integers null 6295
math_and_algorithm_ai 038. How Many Guests? null 6117
tessoku_book_d A04. Binary Representation 1 null 6056
math_and_algorithm_c 003. Sum of N Integers null 5671
tessoku_book_e A05. Three Cards null 5587
math_and_algorithm_d 004. Product of 3 Integers null 5581
math_and_algorithm_e 005. Modulo 100 null 5397
tessoku_book_g A07. Event Attendance null 4890
math_and_algorithm_f 006. Print 2N+3 null 4871
math_and_algorithm_g 007. Number of Multiples 1 null 4599