Wanted

2981:problems_untagged

ID Name Difficulty Solver
abc381_a A. 11/22 String -622 6606
abc377_b B. Avoid Rook Attack -432 10026
abc381_b B. 1122 String -417 6240
abc368_b B. Decrease 2 max elements -384 12331
abc369_b B. Piano 3 -344 12239
abc375_b B. Traveling Takahashi Problem -325 12020
abc373_c C. Max Ai+Bj -269 13053
abc360_b B. Vertical Reading -255 9193
abc348_b B. Farthest Point -251 12876
abc347_b B. Substring -238 14453
abc370_b B. Binary Alchemy -226 12271
abc349_b B. Commencement -202 13103
abc355_b B. Piano 2 -136 12867
arc177_a A. Exchange -120 3660
abc378_b B. Garbage Collection -90 9736
abc372_b B. 3^A -48 10317
abc352_c C. Standing On The Shoulders -32 12994
abc348_c C. Colorful Beans 23 11915
abc360_d D. Ghost Ants 32 6454
abc346_c C. Σ 78 12708
abc366_c C. Balls and Bag Query 80 11552
abc366_b B. Vertical Writing 80 10995
abc251_b B. At Most 3 (Judge ver.) 83 10309
abc331_b B. Buy One Carton of Milk 85 11363
arc177_b B. Puzzle of Lamps 93 3367
abc378_c C. Repeating 105 9554
abc284_c C. Count Connected Components 108 11110
abc260_b B. Better Students Are Needed! 112 9661
abc329_c C. Count xxx 133 10586
abc381_c C. 11/22 Substring 140 5368
abc313_b B. Who is Saikyo? 147 10759
abc349_c C. Airport Code 159 11786
abc321_b B. Cutoff 160 13290
abc262_b B. Triangle (Easier) 160 9384
abc380_c C. Move Segment 166 9029
abc289_b B. V 169 9614
abc310_b B. Strictly Superior 171 10588
abc374_c C. Separated Lunch 172 10514
abc351_c C. Merge the balls 175 11781
abc370_c C. Word Ladder 176 10770
abc367_c C. Enumerate Sequences 186 10761
abc328_c C. Consecutive 189 10772
arc134_a A. Bridge and Sheets 207 4824
abc346_b B. Piano 213 11663
abc337_c C. Lining Up 2 225 11407
arc133_a A. Erase by Value 235 4895
abc365_c C. Transportation Expenses 241 11286
abc310_c C. Reversible 245 11269
abc358_c C. Popcorn 247 11203
abc297_d D. Count Subtractions 247 9253
abc377_c C. Avoid Knight Attack 248 7994
arc161_a A. Make M 265 3431
abc331_c C. Sum of Numbers Greater Than Me 268 10104
arc152_a A. Seat Occupation 269 3828
abc376_b B. Hands on Ring (Easy) 271 8955
abc326_c C. Peak 274 10514
abc315_c C. Flavors 312 10008
abc369_c C. Count Arithmetic Subarrays 315 9814
abc355_c C. Bingo 2 317 10405
arc180_a A. ABA and BAB 322 3830
abc372_c C. Count ABC Again 336 8878
abc314_c C. Rotate Colored Subsequence 337 9432
abc309_c C. Medicine 344 9333
arc157_a A. XXYYX 344 3842
arc147_a A. Max Mod Min 347 3974
arc132_a A. Permutation Grid 347 3544
abc302_b B. Find snuke 349 8262
abc323_c C. World Tour Finals 354 11133
arc151_a A. Equal Hamming Distances 355 3719
abc376_c C. Prepare Another Box 364 8897
arc154_a A. Swap Digit 364 3482
abc304_c C. Virus 365 8362
abc368_c C. Triple Attack 367 10086
abc273_c C. (K+1)-th Largest Number 369 8091
arc163_a A. Divide String 373 3685
abc294_d D. Bank 385 8081
abc276_c C. Previous Permutation 389 8858
abc318_c C. Blue Spring 400 10755
abc341_c C. Takahashi Gets Lost 406 9931
abc371_d D. 1D Country 408 8549
abc258_c C. Rotation 419 10408
arc178_a A. Good Permutation 2 438 2694
abc354_c C. AtCoder Magics 441 10471
abc252_c C. Slot Strategy 441 9049
arc162_a A. Ekiden Race 446 2903
abc311_c C. Find it! 448 9710
abc298_c C. Cards Query Problem 448 7792
abc259_c C. XX to XXX 451 9088
abc283_d D. Scope 453 8035
arc181_a A. Sort Left and Right 456 3104
arc174_a A. A Multiply 467 3338
abc302_c C. Almost Equal 469 8109
abc334_b B. Christmas Trees 479 9799
arc137_a A. Coprime Pair 480 4648
arc179_a A. Partition 504 3163
arc156_a A. Non-Adjacent Flip 510 3722
abc250_c C. Adjacent Swaps 517 8784
abc253_c C. Max - Min Query 518 9091
abc330_c C. Minimize Abs 2 519 8959
abc340_c C. Divide and Divide 528 9535
arc164_a A. Ternary Decomposition 532 4026
arc183_a A. Median of Good Sequences 539 2295
abc256_c C. Filling 3x3 array 541 8173
arc142_a A. Reverse and Minimize 552 3342
arc161_b B. Exactly Three Bits 563 2905
abc286_c C. Rotate and Palindrome 565 7484
abc356_c C. Keys 568 9330
abc330_d D. Counting Ls 569 7821
abc255_c C. ±1 Operation 1 574 8187
abc292_d D. Unicyclic Components 579 7617
abc314_d D. LOWER 585 8125
abc366_d D. Cuboid Sum Query 586 7924
abc378_d D. Count Simple Paths 587 7034
abc321_c C. 321-like Searcher 591 10694
arc145_a A. AB Palindrome 596 4664
arc139_a A. Trailing Zeros 599 3197
abc308_c C. Standings 605 9295
arc171_a A. No Attacking 614 3117
abc308_d D. Snuke Maze 619 7660
abc309_d D. Add One Edge 621 7343
arc135_a A. Floor, Ceil - Decomposition 634 4222
abc324_c C. Error Correction 637 8109
arc148_a A. mod M 656 4018
abc375_d D. ABA 658 7669
abc307_d D. Mismatched Parentheses 666 6956
abc268_c C. Chinese Restaurant 676 7437
abc257_c C. Robot Takahashi 678 7632
abc313_c C. Approximate Equalization 2 681 8041
abc302_d D. Impartial Gift 682 6910
abc258_d D. Trophy 687 8145
arc142_b B. Unbalanced Squares 692 2892
abc374_d D. Laser Marking 694 6994
arc159_a A. Copy and Paste Graph 698 3081
arc158_a A. +3 +5 +7 720 3122
abc265_d D. Iroha and Haiku (New ABC Edition) 727 7124
abc365_d D. AtCoder Janken 3 730 7966
abc355_d D. Intersecting Intervals 735 7759
abc376_d D. Cycle 743 6855
arc170_a A. Yet Another AB Problem 750 2928
arc132_b B. Shift and Reverse 753 2928
abc275_c C. Counting Squares 760 6251
abc373_d D. Hidden Weights 765 7475
arc145_b B. AB Game 767 3552
abc303_d D. Shift vs. CapsLock 778 6649
abc340_d D. Super Takahashi Bros. 784 6993
abc272_d D. Root M Leaper 804 6600
abc368_d D. Minimum Steiner Tree 816 7092
abc359_c C. Tile Distance 2 828 7132
arc138_a A. Larger Score 837 3631
abc271_c C. Manga 842 7408
abc346_d D. Gomamayo Sequence 845 7035
abc371_c C. Make Isomorphic 849 6199
abc380_d D. Strange Mirroring 849 5758
arc172_a A. Chocolate 851 2335
abc323_d D. Merge Slimes 852 6970
abc277_d D. Takahashi's Solitaire 873 5814
arc149_a A. Repdigit Number 878 3323
arc137_b B. Count 1's 883 3673
abc356_d D. Masked Popcount 886 6900
arc144_b B. Gift Tax 895 3456
abc372_d D. Buildings 901 6325
abc381_d D. 1122 Substring 921 3085
arc175_b B. Parenthesis Arrangement 924 2108
abc317_d D. President 929 6185
arc134_b B. Reserve or Reverse 934 3371
arc138_b B. 01 Generation 934 3160
arc163_b B. Favorite Game 936 2994
abc379_c C. Sowing Stones 951 5827
arc140_a A. Right String 951 2931
arc150_a A. Continuous 1 952 3207
agc063_a A. Mex Game 952 1859
abc304_e E. Good Graph 971 5055
abc375_c C. Spiral Rotation 972 5696
arc148_b B. dp 975 2944
abc371_e E. I Hate Sigma Problems 981 5650
arc149_b B. Two LIS Sum 983 2750
abc377_d D. Many Segments 2 987 4505
abc302_e E. Isolation 988 5250
agc064_a A. i i's 996 1711
abc296_d D. M<=ab 999 6877
abc330_e E. Mex and Update 1004 5682
abc331_e E. Set Meal 1018 5409
arc154_b B. New Place 1027 2638
abc290_d D. Marking 1036 4798
abc308_e E. MEX 1042 5332
arc185_a A. mod M Game 2 1042 2005
arc182_b B. |{floor(A_i/2^k)}| 1049 1907
abc346_e E. Paint 1053 5686
arc177_c C. Routing 1055 2228
abc376_e E. Max × Sum 1063 5100
arc173_a A. Neq Number 1073 2089
abc370_d D. Cross Explosion 1088 5803
arc140_b B. Shorten ARC 1092 2546
abc287_e E. Karuta 1093 4789
abc320_e E. Somen Nagashi 1096 5019
agc062_a A. Right Side Character 1099 1455
abc365_e E. Xor Sigma Problem 1102 5352
arc182_a A. Chmax Rush! 1110 2016
abc303_e E. A Gift From the Stars 1113 4382
arc162_b B. Insertion Sort 2 1124 1904
arc166_a A. Replace C or Swap AB 1126 2275
arc166_b B. Make Multiples 1134 2205
agc058_a A. Make it Zigzag 1134 1823
abc324_e E. Joint Two Strings 1153 4671
abc347_e E. Set Add Query 1166 4977
arc147_b B. Swap to Sort 1167 2457
arc169_a A. Please Sign 1171 2599
abc368_f F. Dividing Game 1180 4436
arc170_b B. Arithmetic Progression Subsequence 1180 2154
arc164_b B. Switching Travel 1189 2725
arc164_c C. Reversible Card Game 1199 2535
abc299_e E. Nearest Black Vertex 1216 4016
abc354_e E. Remove Pairs 1223 4535
abc380_e E. 1D Bucket Tool 1230 3669
abc379_e E. Sum of All Substrings 1246 3714
wtf22_day1_a A. Save the Monsters 1246 579
abc310_e E. NAND repeatedly 1261 4061
abc292_e E. Transitivity 1272 4431
abc359_e E. Water Tank 1275 4419
arc160_b B. Triple Pair 1275 1863
arc160_a A. Reverse and Count 1275 1781
arc168_b B. Arbitrary Nim 1289 1862
arc167_b B. Product of Divisors 1292 2317
abc311_e E. Defect-free Squares 1293 4360
arc176_b B. Simple Math 4 1298 1863
abc298_e E. Unfair Sugoroku 1300 3437
abc369_e E. Sightseeing Tour 1301 4178
abc307_c C. Ideal Sheet 1307 3620
abc322_d D. Polyomino 1310 3901
arc133_b B. Dividing Subsequence 1317 2579
arc185_b B. +1 and -1 1332 1735
arc151_b B. A < AP 1333 2355
arc146_b B. Plus and AND 1335 2105
agc060_a A. No Majority 1345 1645
arc176_a A. 01 Matrix Again 1346 1846
arc187_a A. Add and Swap 1349 1389
abc319_e E. Bus Stops 1353 3926
arc136_b B. Triple Shift 1358 2691
abc331_d D. Tile Pattern 1361 4104
arc165_b B. Sliding Window Sort 2 1364 1951
abc325_d D. Printing Machine 1367 3916
abc310_d D. Peaceful Teams 1368 4226
arc153_b B. Grid Rotations 1369 2149
arc171_b B. Chmax 1374 1777
arc161_d D. Everywhere is Sparser than Whole (Construction) 1379 1542
abc359_d D. Avoid K Palindrome 1381 3886
arc184_a A. Appraiser 1383 1610
arc169_b B. Subsegments with Small Sums 1387 1979
agc057_a A. Antichain of Integer Strings 1389 1551
abc271_e E. Subsequence Path 1402 3803
abc378_e E. Mod Sigma Problem 1406 3227
arc156_b B. Mex on Blackboard 1415 1984
abc375_e E. 3 Team Division 1424 3888
arc179_b B. Between B and B 1432 1780
arc143_b B. Counting Grids 1433 2068
abc378_f F. Add One Edge 2 1436 2804
arc159_b B. GCD Subtraction 1438 2126
arc158_b B. Sum-Product Ratio 1446 1978
abc370_e E. Avoid K Partition 1453 3612
abc285_e E. Work or Rest 1466 3070
arc150_b B. Make Divisible 1466 2080
abc328_f F. Good Set Query 1477 3266
abc290_e E. Make it Palindrome 1485 2922
arc148_c C. Lights Out on Tree 1488 2040
arc178_b B. 1 + 6 = 7 1492 1369
arc172_c C. Election 1498 1538
abc374_e E. Sensor Optimization Dilemma 2 1504 3672
abc356_e E. Max/Min 1506 3821
abc221_e E. LEQ 1515 3623
abc366_e E. Manhattan Multifocal Ellipse 1515 3273
abc340_f F. S = 1 1516 2941
abc255_e E. Lucky Numbers 1519 3354
abc266_f F. Well-defined Path Queries on a Namori 1525 3283
arc157_b B. XYYYX 1529 1767
abc265_e E. Warp 1531 3810
abc315_d D. Magical Cookies 1531 3335
abc323_f F. Push and Carry 1532 2363
abc312_f F. Cans and Openers 1534 3042
abc298_f F. Rook Score 1535 2532
abc329_e E. Stamp 1539 3478
abc367_f F. Rearrange Query 1540 3491
abc335_e E. Non-Decreasing Colorful Path 1540 3384
abc258_e E. Packing Potatoes 1545 3213
abc375_f F. Road Blocked 1546 3054
arc155_a A. ST and TS Palindrome 1548 1703
abc306_f F. Merge Sets 1557 2547
arc134_c C. The Majority 1560 2091
abc276_f F. Double Chance 1562 2685
arc155_b B. Abs Abs Function 1565 1561
arc133_c C. Row Column Sums 1583 1776
abc261_f F. Sorting Color Balls 1587 2806
abc240_f F. Sum Sum Max 1589 2477
abc373_e E. How to Win the Election 1592 2926
arc174_d D. Digit vs Square Root 1592 1477
arc173_b B. Make Many Triangles 1594 1430
arc140_c C. ABS Permutation (LIS ver.) 1596 1659
abc350_f F. Transpose 1601 2880
abc341_f F. Breakdown 1604 2379
abc275_f F. Erase Subarrays 1608 2714
arc132_c C. Almost Sorted 1616 1800