Wanted

2981:problems_untagged

ID Name Difficulty Solver
arc173_d D. Bracket Walk 2598 571
arc107_e E. Mex Mat 2604 839
acl1_e E. Shuffle Window 2605 373
abc231_g G. Balls in Boxes 2606 656
abc288_g G. 3^N Minesweeper 2606 475
abc374_g G. Only One Product Name 2608 471
abc225_f F. String Cards 2612 1131
abc361_g G. Go Territory 2613 540
abc335_g G. Discrete Logarithm Problems 2614 515
abc282_h Ex. Min + Sum 2621 681
abc287_h Ex. Directed Graph and Query 2639 623
arc158_e E. All Pair Shortest Paths 2641 461
abc304_h Ex. Constrained Topological Sort 2642 480
abc317_g G. Rearranging 2649 568
arc185_d D. Random Walk on Tree 2649 466
arc164_e E. Segment-Tree Optimization 2651 426
abc349_g G. Palindrome Construction 2655 408
arc133_d D. Range XOR 2658 453
abc264_h Ex. Perfect Binary Tree 2660 374
arc109_e E. 1D Reversi Builder 2661 424
abc213_g G. Connectivity 2 2663 878
arc146_d D. >=< 2663 535
arc153_d D. Sum of Sum of Digits 2664 522
abc247_h Ex. Rearranging Problem 2664 340
abc354_g G. Select Strings 2665 540
abc331_g G. Collect Them All 2668 369
abc246_h Ex. 01? Queries 2677 654
arc127_e E. Priority Queue 2678 675
agc060_c C. Large Heap 2680 509
abc283_h Ex. Popcount Sum 2682 426
abc239_h Ex. Dice Product 2 2686 588
arc180_d D. Division into 3 2694 484
abc310_g G. Takahashi And Pass-The-Ball Game 2696 464
agc061_c C. First Come First Serve 2697 492
abc258_h Ex. Odd Steps 2708 503
abc228_g G. Digits on Grid 2711 454
arc151_e E. Keep Being Substring 2713 557
arc119_d D. Grid Repainting 3 2713 518
arc179_d D. Portable Gate 2717 424
codefestival_2016_qualA_e E. LRU Puzzle 2723 354
abc295_h Ex. E or m 2728 358
abc228_h H. Histogram 2729 455
abc255_g G. Constrained Nim 2734 505
abc303_g G. Bags Game 2736 368
arc140_e E. Not Equal Rectangle 2739 571
arc135_d D. Add to Square 2750 553
abc307_h Ex. Marquee 2754 229
abc249_g G. Xor Cards 2756 415
abc253_h Ex. We Love Forest 2758 377
arc126_e E. Infinite Operations 2766 493
abc198_f F. Cube 2769 495
abc223_h H. Xor Query 2771 572
abc250_h Ex. Trespassing Takahashi 2773 400
abc332_g G. Not Too Many Balls 2775 396
arc186_d D. Polish Mania 2776 233
arc162_e E. Strange Constraints 2780 470
abc232_h H. King's Tour 2780 385
arc165_e E. Random Isolation 2783 430
arc148_e E. ≥ K 2785 572
abc318_h Ex. Count Strong Test Cases 2785 243
abc298_h Ex. Sum of Min of Length 2792 289
abc221_h H. Count Multiset 2793 711
abc261_g G. Replace 2803 366
agc055_c C. Weird LIS 2803 344
arc184_d D. Erase Balls 2D 2804 393
abc218_h H. Red and Blue Lamps 2805 627
abc213_h H. Stroll 2806 421
agc051_d D. C4 2807 454
abc237_h Ex. Hakata 2807 447
abc315_h Ex. Typical Convolution Problem 2807 284
agc064_d D. Red and Blue Chips 2808 286
arc169_d D. Add to Make a Permutation 2812 352
arc139_d D. Priority Queue 2 2816 440
cf17_final_e E. Combination Lock 2817 421
abc296_h Ex. Unite 2822 189
arc104_e E. Random LIS 2824 576
arc106_e E. Medals 2825 830
agc067_c C. Divisibility Homomorphism 2829 192
abc293_h Ex. Optimal Path Decomposition 2831 286
abc242_h Ex. Random Painting 2835 416
abc280_g G. Do Use Hexagon Grid 2 2842 259
abc297_h Ex. Diff Adjacent 2855 185
abc376_g G. Treasure Hunting 2858 356
abc308_h Ex. Make Q 2861 319
arc184_b B. 123 Set 2867 416
arc173_e E. Rearrange and Adjacent XOR 2869 305
agc045_b B. 01 Unbalanced 2873 581
arc125_e E. Snack 2874 640
abc347_g G. Grid Coloring 2 2876 307
abc322_g G. Two Kinds of Base 2876 241
arc157_e E. XXYX Binary Tree 2877 426
agc053_c C. Random Card Game 2878 304
abc244_h Ex. Linear Maximization 2878 289
arc183_d D. Keep Perfectly Matched 2880 219
arc187_d D. Many Easy Optimizations 2880 201
abc241_h Ex. Card Deck Score 2881 356
codefestival_2016_qualC_e E. Encyclopedia of Permutations 2885 203
abc224_h H. Security Camera 2 2887 282
arc141_d D. Non-divisible Set 2890 434
abc254_g G. Elevators 2890 325
arc158_d D. Equation 2893 578
abc236_h Ex. Distinct Multiples 2898 434
abc301_h Ex. Difference of Distance 2898 202
agc059_c C. Guessing Permutation for as Long as Possible 2905 427
abc271_h Ex. General General 2908 230
arc179_e E. Rectangle Concatenation 2909 236
abc221_g G. Jumping sequence 2914 794
abc277_h Ex. Constrained Sums 2917 279
abc351_g G. Hash on Tree 2920 330
abc372_g G. Ax + By < C 2925 183
agc051_c C. Flipper 2928 252
agc064_c C. Erase and Divide Game 2932 269
arc172_d D. Distance Ranking 2936 458
arc142_d D. Deterministic Placing 2938 328
abc314_h Ex. Disk and Segments 2938 234
wtf22_day1_b B. Non-Overlapping Swaps 2945 101
agc068_a A. Circular Distance 2948 190
agc066_e E. Sliding Puzzle On Tree 2950 108
abc262_h Ex. Max Limited Sequence 2957 394
abc248_h Ex. Beautiful Subsequences 2960 353
abc235_h Ex. Painting Weighted Graph 2967 284
abc327_g G. Many Good Tuple Problems 2968 279
abc299_h Ex. Dice Sum Infinity 2984 167
arc152_e E. Xor Annihilation 2990 303
arc149_d D. Simultaneous Sugoroku 2991 520
agc058_c C. Planar Tree 2991 332
abc355_g G. Baseball 2991 159
arc182_d D. Increment Decrement Again 2992 226
abc329_g G. Delivery on Tree 2995 153
arc168_e E. Subsegments with Large Sums 3001 418
arc155_d D. Avoid Coprime Game 3001 371
abc313_h Ex. Group Photo 3008 311
arc141_e E. Sliding Edge on Torus 3009 286
abc252_h Ex. K-th beautiful Necklace 3015 361
abc356_g G. Freestyle 3022 176
arc134_e E. Modulo Nim 3026 436
abc309_h Ex. Simple Path Counting Problem 3029 191
arc124_e E. Pass to Next 3031 560
abc344_g G. Points and Comparison 3032 207
arc137_e E. Bakery 3034 320
arc171_e E. Rookhopper's Tour 3034 201
agc066_c C. Delete AAB or BAA 3036 324
abc263_h Ex. Intersection 2 3041 210
abc220_h H. Security Camera 3047 284
arc128_e E. K Different Values 3049 272
abc378_g G. Everlasting LIDS 3051 141
abc245_h Ex. Product Modulo 2 3057 319
abc294_h Ex. K-Coloring 3058 224
abc225_h H. Social Distance 2 3061 236
tenka1_2012_12 D. ゆうびんやさんのお花畑 3066 18
arc132_f F. Takahashi The Strongest 3076 269
abc276_h Ex. Construct a Matrix 3087 201
code_festival_2017_quala_f F. Squeezing Slimes 3091 256
abc323_g G. Inversion of Tree 3091 110
arc118_e E. Avoid Permutations 3092 541
arc120_f F. Wine Thief 3094 331
mujin_pc_2017_c C. Robot and String 3096 400
nomura2020_f F. Sorting Game 3097 244
arc182_e E. Sum of Min of Mod of Linear 3098 126
arc136_e E. Non-coprime DAG 3100 569
abc313_f F. Flip Machines 3100 355
abc215_h H. Cabbage Master 3101 319
arc176_e E. Max Vector 3101 297
arc161_f F. Everywhere is Sparser than Whole (Judge) 3106 248
arc184_c C. Mountain and Valley Folds 3108 209
abc251_h Ex. Fill Triangle 3108 154
abc367_g G. Sum of (XOR^K or 0) 3110 172
abc217_h H. Snuketoon 3112 542
abc262_g G. LIS with Stack 3114 266
discovery_2016_qual_d D. DDPC特別ビュッフェ 3116 46
agc065_d D. Not Intersect 3117 174
arc116_f F. Deque Game 3125 330
abc284_h Ex. Count Unlabeled Graphs 3125 165
arc107_f F. Sum of Abs 3130 662
arc146_e E. Simple Speed 3131 357
code_festival_final_g G. 魔方陣 3132 39
arc161_e E. Not Dyed by Majority (Cubic Graph) 3136 270
abc336_g G. 16 Integers 3138 213
arc132_e E. Paw 3144 447
dwango2016qual_e E. 花火 3144 179
arc135_e E. Sequence of Multiples 3157 270
agc058_d D. Yet Another ABC String 3159 383
abc270_h Ex. add 1 3159 294
abc357_g G. Stair-like Grid 3159 108
arc117_e E. Zero-Sum Ranges 2 3166 564
agc023_d D. Go Home 3173 737
arc170_e E. BDFS 3174 202
abc304_g G. Max of Medians 3177 217
arc186_e E. Missing Subsequence 3178 118
abc281_h Ex. Alchemy 3180 163
agc068_c C. Ball Redistribution 3182 119
tenka1_2013_qualB_d D. 天下一二三パズル リベンジ 3182 25
abc240_h Ex. Sequence of Substrings 3184 650
arc149_e E. Sliding Window Sort 3188 275
arc130_e E. Increasing Minimum 3188 190
arc162_f F. Montage 3190 326
abc274_h Ex. XOR Sum of Arrays 3191 161
abc285_h Ex. Avoid Square Number 3192 247
arc160_f F. Count Sorted Arrays 3202 234
agc004_e E. Salvage Robots 3205 763
abc300_h Ex. Fibonacci: Revisited 3209 153
abc275_h Ex. Monster 3210 235
arc130_f F. Replace by Average 3211 164
arc104_f F. Visibility Sequence 3213 448
arc139_e E. Wazir 3222 205
arc175_e E. Three View Drawing 3223 219
arc177_e E. Wrong Scoreboard 3227 119
tenka1_2015_qualB_e E. 天下一演算 3228 21
abc227_h H. Eat Them All 3229 178
arc159_e E. Difference Sum Query 3229 165
arc105_f F. Lights Out on Connected Graph 3231 509
arc142_e E. Pairing Wizards 3232 367
arc165_f F. Make Adjacent 3235 294
arc144_e E. GCD of Path Weights 3238 286
arc133_e E. Cyclic Medians 3238 248
arc124_f F. Chance Meeting 3246 231
abc289_h Ex. Trio 3246 153
abc238_h Ex. Removing People 3247 204
arc159_f F. Good Division 3250 288
cf_2015_morning_hard_c C. 数列の組み替え 3258 20
abc301_g G. Worst Picture 3262 105
arc167_e E. One Square in a Triangle 3271 317
agc062_d D. Walk Around Neighborhood 3274 124
arc153_e E. Deque Minimization 3276 199
abc279_h Ex. Sum of Prod of Min 3279 154
arc166_e E. Fizz Buzz Difference 3279 124
abc288_h Ex. A Nameless Counting Problem 3282 191
arc160_e E. Make Biconnected 3284 192
tenka1_2014_qualB_e E. カラオケランキング 3284 9
abc216_h H. Random Robots 3295 366
arc163_f F. Many Increasing Problems 3295 91
abc219_h H. Candles 3297 557
code_festival_morning_hard_d D. Rail Tour 3303 13
abc280_h Ex. Substring Sort 3307 106
code_festival_final_j J. 2つのカップ 3309 15
agc014_e E. Blue and Red Tree 3312 751
arc137_f F. Overlaps 3313 104
abc381_g G. Fibonacci Product 3313 21
agc011_e E. Increasing Numbers 3315 686
code_festival_2017_qualc_f F. Three Gluttons 3315 220
agc059_d D. Distinct Elements on Subsegments 3319 130
abc265_h Ex. No-capture Lance Game 3319 125
agc036_d D. Negative Cycle 3326 624
arc183_e E. Ascendant Descendant 3331 105
arc169_e E. Avoid Boring Matches 3333 144
abc306_h Ex. Balance Scale 3335 330
arc115_f F. Migration 3336 252
arc129_e E. Yet Another Minimization 3337 250
arc163_e E. Chmin XOR Game 3338 180
agc056_b B. Range Argmax 3339 386
agc056_d D. Subset Sum Game 3339 270
abc260_h Ex. Colorfulness 3339 134
dwango2015_prelims_5 E. 電波局 3342 11
abc310_h Ex. Negative Cost 3343 142
abc345_g G. Sugoroku 5 3343 85
abc305_h Ex. Shojin 3344 164
agc067_d D. Unique Matching 3345 112
apc001_h H. Generalized Insertion Sort 3346 137
abc363_g G. Dynamic Scheduling 3358 122
tenka1_2015_qualA_e E. 天下一魔法使い 3359 27
agc057_c C. Increment or Xor 3366 242
agc061_b B. Summation By Construction 3371 167
jsc2021_h H. Shipping 3383 129
tokiomarine2020_f F. Triangles 3385 108
arc140_f F. ABS Permutation (Count ver.) 3392 148
agc068_e E. Sort and Match 3392 85
agc060_d D. Same Descent Set 3394 176
arc187_e E. Replace Triplets 3414 39
abc317_h Ex. Walk 3426 67
agc009_e E. Eternal Average 3428 882
abc370_g G. Divisible by 3 3428 110
arc112_f F. Die Siedler 3432 317
arc150_f F. Constant Sum Subsequence 3432 145
arc169_f F. Large DP Table 3434 106
arc184_e E. Accumulating Many Times 3443 96
agc060_e E. Number of Cycles 3452 109
abc330_g G. Inversion Squared 3455 73
agc052_e E. 3 Letters 3457 237
abc257_h Ex. Dice Sum 2 3461 132
keyence2021_f F. Keyence Repetition 3461 101
agc028_f F. Reachable Cells 3462 292
codefestival_2016_final_i I. Reverse Grid 3463 182
arc150_e E. Weathercock 3466 151
agc030_f F. Permutation and Minimum 3474 678
arc172_f F. Walking 3474 78
abc222_h H. Beautiful Binary Tree 3477 242
arc164_f F. Subtree Reversi 3486 162
abc249_h Ex. Dye Color 3487 135
arc126_f F. Affine Sort 3488 86
agc049_e E. Increment Decrement 3496 224
agc054_e E. ZigZag Break 3499 220
arc158_f F. Random Radix Sort 3500 146
arc131_f F. ARC Stamp 3501 96
agc043_e E. Topology 3505 174
arc154_e E. Reverse and Inversion 3506 426
agc055_d D. ABC Ultimatum 3506 221
arc155_e E. Split and Square 3513 193
arc157_f F. XY Ladder LCS 3517 177
ahc010_a A. Loop Lines 3519 802
ahc013_a A. Server Room 3520 938