Wanted

1959:problems_untagged

ID Name Difficulty Solver
abc283_a A. Power -1172 10388
abc284_a A. Sequence of Strings -1072 10896
abc287_a A. Majority -1023 8206
abc285_a A. Edge Checker 2 -1022 8936
abc284_b B. Multi Test Cases -936 10450
abc274_a A. Batting Average -738 9620
abc263_a A. Full House -679 10162
abc271_a A. 484558 -662 9703
abc286_a A. Range Swap -640 7640
abc286_b B. Cat -605 7632
abc259_a A. Growth Record -582 10647
abc283_b B. First Query Problem -578 9286
abc252_b B. Takahashi's Failure -497 11644
abc287_b B. Postal Card -471 7672
abc274_b B. Line Sensor -449 8921
abc264_b B. Nice Grid -391 9371
abc253_b B. Distance Between Tokens -378 10202
arc153_a A. AABCDDEFE -259 4521
abc283_c C. Cash Register -207 8857
abc257_b B. 1D Pawn -194 8777
abc266_b B. Modulo Number -176 9951
abc271_b B. Maintain Multiple Sequences -166 8542
arc144_a A. Digit Sum of 2x -136 4323
abc285_b B. Longest Uncommon Prefix -123 7165
arc136_a A. A ↔ BB -114 4661
arc143_a A. Three Integers -42 3775
abc263_b B. Ancestor -32 8395
abc272_b B. Everyone is Friends -24 8170
abc276_b B. Adjacency List -11 8349
abc275_b B. ABC-DEF -1 8327
abc265_b B. Explore 13 8487
abc285_c C. abc285_brutmhyhiizp 25 6926
arc146_a A. Three Cards 32 4148
abc267_b B. Split? 61 8121
abc273_b B. Broken Rounding 77 7468
abc251_b B. At Most 3 (Judge ver.) 83 8623
abc284_c C. Count Connected Components 108 8100
abc260_b B. Better Students Are Needed! 112 8149
abc262_b B. Triangle (Easier) 160 7766
arc134_a A. Bridge and Sheets 207 4401
arc133_a A. Erase by Value 235 4424
arc152_a A. Seat Occupation 269 3212
arc147_a A. Max Mod Min 347 3422
arc132_a A. Permutation Grid 347 3136
abc255_b B. Light It Up 348 7906
arc151_a A. Equal Hamming Distances 355 3157
arc154_a A. Swap Digit 364 2638
abc273_c C. (K+1)-th Largest Number 369 6401
abc276_c C. Previous Permutation 389 6972
abc260_c C. Changing Jewels 413 7578
abc258_c C. Rotation 419 8311
abc252_c C. Slot Strategy 441 7696
abc259_c C. XX to XXX 451 7524
abc283_d D. Scope 453 6220
abc287_c C. Path Graph? 466 5236
arc137_a A. Coprime Pair 480 4109
abc250_c C. Adjacent Swaps 517 7176
abc253_c C. Max - Min Query 518 7547
abc256_c C. Filling 3x3 array 541 6849
arc142_a A. Reverse and Minimize 552 2892
abc286_c C. Rotate and Palindrome 565 5016
abc255_c C. ±1 Operation 1 574 6872
arc145_a A. AB Palindrome 596 3950
arc139_a A. Trailing Zeros 599 2755
arc135_a A. Floor, Ceil - Decomposition 634 3771
arc148_a A. mod M 656 3331
abc284_d D. Happy New Year 2023 658 6596
abc285_d D. Change Usernames 663 4398
abc268_c C. Chinese Restaurant 676 5923
abc257_c C. Robot Takahashi 678 6245
abc258_d D. Trophy 687 6620
arc142_b B. Unbalanced Squares 692 2494
abc265_d D. Iroha and Haiku (New ABC Edition) 727 5749
arc132_b B. Shift and Reverse 753 2532
abc275_c C. Counting Squares 760 4617
arc145_b B. AB Game 767 3132
abc287_d D. Match or Not 796 4012
abc272_d D. Root M Leaper 804 5039
arc138_a A. Larger Score 837 3175
abc271_c C. Manga 842 5619
abc277_d D. Takahashi's Solitaire 873 4459
arc149_a A. Repdigit Number 878 2699
arc137_b B. Count 1's 883 3071
arc144_b B. Gift Tax 895 2944
arc134_b B. Reserve or Reverse 934 2973
arc138_b B. 01 Generation 934 2746
arc140_a A. Right String 951 2453
arc150_a A. Continuous 1 952 2668
arc148_b B. dp 975 2452
arc149_b B. Two LIS Sum 983 2257
arc154_b B. New Place 1027 1862
arc140_b B. Shorten ARC 1092 2098
abc287_e E. Karuta 1093 2845
agc058_a A. Make it Zigzag 1134 1574
arc147_b B. Swap to Sort 1167 2073
arc133_b B. Dividing Subsequence 1317 2143
arc151_b B. A < AP 1333 1873
arc146_b B. Plus and AND 1335 1743
agc060_a A. No Majority 1345 1217
arc136_b B. Triple Shift 1358 2325
arc153_b B. Grid Rotations 1369 1768
agc057_a A. Antichain of Integer Strings 1389 1376
abc271_e E. Subsequence Path 1402 2857
arc143_b B. Counting Grids 1433 1749
abc285_e E. Work or Rest 1466 1910
arc150_b B. Make Divisible 1466 1673
arc148_c C. Lights Out on Tree 1488 1623
abc221_e E. LEQ 1515 2839
abc255_e E. Lucky Numbers 1519 2700
abc266_f F. Well-defined Path Queries on a Namori 1525 2516
abc265_e E. Warp 1531 2905
abc258_e E. Packing Potatoes 1545 2575
arc155_a A. ST and TS Palindrome 1548 1102
arc134_c C. The Majority 1560 1777
abc276_f F. Double Chance 1562 2000
arc155_b B. Abs Abs Function 1565 997
arc133_c C. Row Column Sums 1583 1502
abc261_f F. Sorting Color Balls 1587 2148
abc240_f F. Sum Sum Max 1589 1992
arc140_c C. ABS Permutation (LIS ver.) 1596 1345
abc275_f F. Erase Subarrays 1608 1874
arc132_c C. Almost Sorted 1616 1392
arc144_c C. K Derangement 1622 1446
abc273_e E. Notebook 1624 2158
arc152_b B. Pass on Path 1628 1187
abc224_e E. Integers on Grid 1657 2138
abc244_f F. Shortest Good Path 1661 1753
abc260_e E. At Least One 1692 2138
arc145_c C. Split and Maximize 1697 1550
abc251_f F. Two Spanning Trees 1703 1810
arc147_c C. Min Diff Sum 1704 1302
abc262_e E. Red and Blue Graph 1719 1927
abc224_f F. Problem where +s Separate Digits 1733 1718
abc283_f F. Permutation Distance 1771 1488
abc257_f F. Teleporter Setting 1775 1836
abc283_e E. Don't Isolate Elements 1802 1621
arc150_c C. Path and Subsequence 1802 1188
arc143_c C. Piles of Pebbles 1805 1208
abc268_f F. Best Concatenation 1807 1511
abc242_g G. Range Pairing Query 1828 1611
abc237_f F. |LIS| = 3 1857 1771
abc232_f F. Simple Operations on Sequence 1857 1469
abc285_f F. Substring of Sorted String 1876 1085
abc264_f F. Monochromatic Path 1878 1361
arc154_c C. Roller 1881 820
agc059_b B. Arrange Your Balls 1887 696
arc125_c C. LIS to Original Sequence 1896 1293
abc229_f F. Make Bipartite 1917 1473
abc268_e E. Chinese Restaurant (Three-Star Version) 1927 1216
arc151_c C. 01 Game 1940 1049
abc236_f F. Spices 1943 1562
abc258_g G. Triangle 1944 1722
agc057_b B. 2A + x 1952 794
abc239_f F. Construct Highway 1959 1458
arc153_c C. ± Increasing Sequence 1960 898
abc259_f F. Select Edges 1961 1565
abc249_e E. RLE 1970 1399
agc059_a A. My Last ABC Problem 1970 699
abc260_f F. Find 4-cycle 1995 1473
agc060_b B. Unique XOR Path 1996 655
arc134_d D. Concatenate Subsequences 1998 975
arc148_d D. mod M Game 2009 878
abc287_f F. Components 2034 761
abc233_f F. Swap and Sort 2038 1229
abc250_f F. One Fourth 2044 1036
abc253_g G. Swap Many Times 2051 931
agc058_b B. Adjacent Chmax 2053 789
abc238_f F. Two Exams 2058 1470
abc263_f F. Tournament 2066 1073
abc256_f F. Cumulative Cumulative Cumulative Sum 2067 1299
abc257_g G. Prefix Concatenation 2078 930
arc152_c C. Pivot 2081 773
arc138_d D. Differ by K bits 2083 871
abc226_f F. Score of Permutations 2086 1041
abc221_f F. Diameter set 2093 1127
abc230_f F. Predilection 2113 1128
abc244_g G. Construct Good Path 2117 782
arc136_c C. Circular Addition 2137 1058
arc147_d D. Sets Scores 2145 794
abc252_g G. Pre-Order 2153 939
abc283_g G. Partial Xor Enumeration 2173 624
abc228_f F. Stamp Game 2179 826
abc287_g G. Balance Update Query 2180 544
arc125_d D. Unique Subsequence 2187 891
abc272_g G. Yet Another mod M 2187 872
abc227_g G. Divisors of Binomial Coefficient 2207 896
abc274_f F. Fishing 2212 840
jsc2021_e E. Level K Palindrome 2213 506
abc239_g G. Builder Takahashi 2215 808
abc284_g G. Only Once 2218 645
abc250_g G. Stonks 2219 840
arc155_c C. Even Sum Triplet 2219 484
abc270_g G. Sequence in mod P 2220 685
arc132_d D. Between Two Binary Strings 2221 634
arc143_d D. Bridges 2229 668
abc272_f F. Two Strings 2238 727
abc222_g G. 222 2242 833
abc238_g G. Cubic? 2254 960
abc263_g G. Erasing Prime Pairs 2261 627
arc154_d D. A + B > C ? 2265 577
abc242_f F. Black and White Rooks 2268 924
abc245_g G. Foreign Friends 2270 849
arc131_d D. AtArcher 2271 528
abc215_g G. Colorful Candies 2 2276 753
abc276_g G. Count Sequences 2278 680
arc151_d D. Binary Representations and Queries 2282 575
abc219_g G. Propagation 2287 821
abc265_f F. Manhattan Cafe 2290 621
arc145_d D. Non Arithmetic Progression Set 2297 627
arc129_d D. -1+2-1 2300 613
abc281_g G. Farthest City 2304 553
abc258_f F. Main Street 2306 828
abc234_g G. Divide a Sequence 2306 808
abc246_g G. Game on Tree 3 2313 786
arc131_e E. Christmas Wreath 2314 574
abc271_g G. Access Counter 2323 514
arc126_d D. Pure Straight 2332 603
abc262_f F. Erase and Rotate 2334 653
abc260_g G. Scalene Triangle Area 2339 536
abc274_g G. Security Camera 3 2340 518
arc141_c C. Bracket and Permutation 2342 497
abc264_g G. String Fair 2348 554
abc226_g G. The baggage 2373 646
abc224_g G. Roll or Increment 2374 561
abc227_e E. Swap 2377 763
arc152_d D. Halftree 2381 469
abc277_f F. Sorting a Matrix 2400 677
abc259_h Ex. Yet Another Path Counting 2406 622
arc139_c C. One Three Nine 2406 466
arc150_d D. Removing Gacha 2407 600
abc282_g G. Similar Permutation 2412 402
abc267_h Ex. Odd Sum 2422 469
arc146_c C. Even XOR 2428 618
abc279_g G. At Most 2 Colors 2431 449
abc265_g G. 012 Inversion 2436 496
arc130_d D. Zigzag Tree 2437 440
abc236_g G. Good Vertices 2438 609
abc269_g G. Reversible Cards 2 2440 597
abc235_g G. Gardens 2462 532
arc144_d D. AND OR Equation 2468 503
abc251_g G. Intersection of Polygons 2468 401
agc056_c C. 01 Balanced 2481 581
abc277_g G. Random Walk to Millionaire 2491 425
abc234_h Ex. Enumerate Pairs 2505 427
abc248_g G. GCD cost on the tree 2514 461
abc230_g G. GCD Permutation 2516 460
arc143_e E. Reversi 2521 413
abc273_g G. Row Column Sums 2 2521 391
abc275_g G. Infinite Knapsack 2522 291
abc233_h Ex. Manhattan Christmas Tree 2530 378
abc256_h Ex. I like Query Problem 2531 453
abc261_h Ex. Game on Graph 2531 384
abc278_g G. Generalized Subtraction Game 2533 367
abc219_f F. Cleaning Robot 2542 471
abc232_g G. Modulo Shortest Path 2550 492
arc147_e E. Examination 2553 457
arc128_d D. Neq Neq 2554 502
abc268_h Ex. Taboo 2560 351
abc267_g G. Increasing K Times 2561 519
abc225_g G. X 2566 388
abc285_g G. Tatami 2566 264
arc127_d D. Sum of Min of Xor 2593 408
arc107_e E. Mex Mat 2604 560
acl1_e E. Shuffle Window 2605 301
abc231_g G. Balls in Boxes 2606 461
abc225_f F. String Cards 2612 797
abc282_h Ex. Min + Sum 2621 314
abc287_h Ex. Directed Graph and Query 2639 284
arc133_d D. Range XOR 2658 315
abc264_h Ex. Perfect Binary Tree 2660 284
arc109_e E. 1D Reversi Builder 2661 332
abc213_g G. Connectivity 2 2663 529
arc146_d D. >=< 2663 346
arc153_d D. Sum of Sum of Digits 2664 289
abc247_h Ex. Rearranging Problem 2664 246
abc246_h Ex. 01? Queries 2677 419
arc127_e E. Priority Queue 2678 422
agc060_c C. Large Heap 2680 279
abc283_h Ex. Popcount Sum 2682 216
abc239_h Ex. Dice Product 2 2686 386
abc258_h Ex. Odd Steps 2708 367
abc228_g G. Digits on Grid 2711 278
arc119_d D. Grid Repainting 3 2713 385
arc151_e E. Keep Being Substring 2713 322
codefestival_2016_qualA_e E. LRU Puzzle 2723 311
abc228_h H. Histogram 2729 256
abc255_g G. Constrained Nim 2734 359
arc140_e E. Not Equal Rectangle 2739 384
arc135_d D. Add to Square 2750 387
abc249_g G. Xor Cards 2756 246
abc253_h Ex. We Love Forest 2758 258
arc126_e E. Infinite Operations 2766 318
abc198_f F. Cube 2769 374
abc223_h H. Xor Query 2771 310
abc250_h Ex. Trespassing Takahashi 2773 282
abc232_h H. King's Tour 2780 264
arc148_e E. ≥ K 2785 357
abc221_h H. Count Multiset 2793 384
abc261_g G. Replace 2803 268
agc055_c C. Weird LIS 2803 244