Wanted

4810:problems_untagged

ID Name Difficulty Solver
abc443_e E. Climbing Silver 1301 3676
abc307_c F. Ideal Sheet 1307 4227
abc458_e E. Count 123 1309 3858
abc322_d G. Polyomino 1310 4442
abc429_e H. Hit and Away 1313 3717
abc434_e E. Distribute Bunnies 1317 2811
arc133_b B. Dividing Subsequence 1317 2772
abc452_e E. You WILL Like Sigma Problem 1318 3804
arc218_b B. All Minus 1321 1316
arc185_b B. +1 and -1 1332 2038
arc151_b B. A < AP 1333 2517
arc203_b B. Swap If Equal Sum 1334 1763
arc146_b B. Plus and AND 1335 2283
abc436_f I. Starry Landscape Photo 1336 3015
abc445_e E. Many LCMs 1337 3396
arc189_a A. Reversi 2 1342 1667
agc060_a A. No Majority 1345 1797
arc176_a A. 01 Matrix Again 1346 2010
arc187_a A. Add and Swap 1349 1758
abc450_e H. Fibonacci String 1352 3778
abc319_e H. Bus Stops 1353 4574
arc136_b B. Triple Shift 1358 2842
abc448_e E. Simple Division 1359 3407
abc331_d G. Tile Pattern 1361 4638
arc205_b B. Triangle Toggle 1361 2057
abc460_e E. x + y ≡ x + y 1362 3535
arc165_b B. Sliding Window Sort 2 1364 2058
abc406_e H. Popcount Sum 3 1365 3673
abc325_d G. Printing Machine 1367 4511
abc310_d G. Peaceful Teams 1368 4947
arc153_b B. Grid Rotations 1369 2289
arc171_b B. Chmax 1374 1954
abc396_e H. Min of Restricted Sum 1379 4245
arc161_d D. Everywhere is Sparser than Whole (Construction) 1379 1659
abc359_d G. Avoid K Palindrome 1381 4496
arc205_c C. No Collision Moves 1381 1866
arc190_a A. Inside or Outside 1381 1177
arc184_a A. Appraiser 1383 1810
abc435_f I. Cat exercise 1385 2520
arc169_b B. Subsegments with Small Sums 1387 2153
arc192_a A. ARC Arc 1387 1819
agc057_a A. Antichain of Integer Strings 1389 1627
arc208_a A. Bitwise OR Game 1394 1571
abc392_f I. Insert 1395 4004
abc411_e H. E [max] 1400 3175
abc271_e H. Subsequence Path 1402 4396
abc394_e H. Palindromic Shortest Path 1403 4645
abc378_e H. Mod Sigma Problem 1406 4241
abc385_e H. Snowflake Tree 1406 3783
abc402_e H. Payment Required 1409 3621
abc417_f I. Random Gathering 1414 3066
arc156_b B. Mex on Blackboard 1415 2202
abc375_e H. 3 Team Division 1424 4682
abc431_e H. Reflection on Grid 1424 3021
abc420_g G. sqrt(n²+n+X) 1427 3256
abc416_e H. Development 1428 4063
abc457_e E. Crossing Table Cloth 1428 3249
abc461_e E. E-liter 1431 2941
arc179_b B. Between B and B 1432 1943
arc143_b B. Counting Grids 1433 2187
arc195_b B. Uniform Sum 1433 1500
abc378_f I. Add One Edge 2 1436 3504
abc395_f I. Smooth Occlusion 1437 3574
arc159_b B. GCD Subtraction 1438 2298
abc382_f I. Falling Bars 1443 2644
arc158_b B. Sum-Product Ratio 1446 2128
arc214_b B. Missing Number in Graph 1451 1287
abc370_e H. Avoid K Partition 1453 4249
arc206_c C. Tree Sequence 1461 1292
abc285_e H. Work or Rest 1466 3593
arc150_b B. Make Divisible 1466 2234
abc406_f I. Compare Tree Weights 1470 3014
abc408_f I. Athletic 1472 3056
abc328_f I. Good Set Query 1477 3838
abc396_f I. Rotated Inversions 1479 3364
abc447_f F. Centipede Graph 1480 2765
abc424_e H. Cut in Half 1482 2850
abc397_e H. Path Decomposition of a Tree 1484 3782
abc290_e H. Make it Palindrome 1485 3269
abc439_f I. Beautiful Kadomatsu 1488 2291
arc148_c C. Lights Out on Tree 1488 2164
arc178_b B. 1 + 6 = 7 1492 1518
abc412_e H. LCM Sequence 1496 3605
arc172_c C. Election 1498 1775
abc374_e H. Sensor Optimization Dilemma 2 1504 4204
arc197_c C. Removal of Multiples 1505 1665
abc356_e H. Max/Min 1506 4475
arc210_b B. Remove Median Operations 1506 1111
abc453_e E. Team Division 1513 2979
abc445_f F. Exactly K Steps 2 1514 2322
abc221_e H. LEQ 1515 4136
abc366_e H. Manhattan Multifocal Ellipse 1515 3799
abc340_f I. S = 1 1516 3509
abc255_e H. Lucky Numbers 1519 3738
abc424_f I. Adding Chords 1521 2191
abc266_f I. Well-defined Path Queries on a Namori 1525 3728
arc157_b B. XYYYX 1529 1935
abc265_e H. Warp 1531 4278
abc407_e H. Most Valuable Parentheses 1531 4074
abc315_d G. Magical Cookies 1531 3835
abc323_f I. Push and Carry 1532 2638
abc312_f I. Cans and Openers 1534 3497
abc298_f I. Rook Score 1535 2945
abc329_e H. Stamp 1539 3955
abc367_f I. Rearrange Query 1540 4405
abc335_e H. Non-Decreasing Colorful Path 1540 4039
abc451_f I. Make Bipartite 3 1540 2517
abc446_f I. Reachable Set 2 1543 2364
arc200_b B. LCM 1543 1240
abc258_e H. Packing Potatoes 1545 3580
abc375_f I. Road Blocked 1546 3870
arc155_a A. ST and TS Palindrome 1548 1794
abc394_f I. Alkane 1549 3384
abc455_f F. Merge Slimes 2 1549 2321
abc415_f I. Max Combo 1552 2902
abc391_f I. K-th Largest Triplet 1554 3566
abc449_e H. A += v 1556 2666
abc306_f I. Merge Sets 1557 2952
abc399_f I. Range Power Sum 1558 2708
arc134_c C. The Majority 1560 2232
abc276_f I. Double Chance 1562 3008
arc155_b B. Abs Abs Function 1565 1707
arc196_a A. Adjacent Delete 1569 1092
abc409_f I. Connecting Points 1580 2995
abc422_e H. Colinear 1580 2744
arc133_c C. Row Column Sums 1583 1862
abc426_e H. Closest Moment 1584 2710
abc261_f I. Sorting Color Balls 1587 3149
abc405_f I. Chord Crossing 1588 2562
abc240_f I. Sum Sum Max 1589 2774
abc373_e H. How to Win the Election 1592 3456
arc174_d D. Digit vs Square Root 1592 1636
arc173_b B. Make Many Triangles 1594 1595
arc140_c C. ABS Permutation (LIS ver.) 1596 1772
arc219_c C. Traveling Door-to-Door Salesman (Elevator) 1598 909
abc350_f I. Transpose 1601 3319
arc188_b B. Symmetric Painting 1602 1377
abc341_f I. Breakdown 1604 2787
abc427_f F. Not Adjacent 1605 2256
abc390_d G. Stone XOR 1607 4284
abc275_f I. Erase Subarrays 1608 3110
abc431_f I. Almost Sorted 2 1613 2387
abc430_f I. Back and Forth Filling 1615 1767
arc132_c C. Almost Sorted 1616 2014
abc433_f I. 1122 Subsequence 2 1617 2302
abc369_f I. Gather Coins 1618 3282
abc304_f I. Shift Table 1619 2574
arc144_c C. K Derangement 1622 1818
abc273_e H. Notebook 1624 3387
abc321_e H. Complete Binary Tree 1627 3347
abc454_e H. LRUD Moving 1627 2637
arc152_b B. Pass on Path 1628 1551
abc452_f F. Interval Inversion Count 1630 2299
arc181_b B. Annoying String Problem 1633 1640
abc413_f I. No Passage 1635 2759
abc354_f I. Useless for LIS 1639 3073
abc389_f I. Rated Range 1642 2824
agc061_a A. Long Shuffle 1643 1032
abc402_f I. Path to Integer 1645 2370
arc162_c C. Mex Game on Tree 1655 1548
abc224_e H. Integers on Grid 1657 3125
abc379_f I. Buildings 2 1659 2765
abc244_f I. Shortest Good Path 1661 2581
agc063_b B. Insert 1, 2, 3, ... 1663 1187
abc401_f I. Add One Edge 3 1666 2791
abc382_e H. Expansion Packs 1671 2528
abc313_e H. Duplicate 1672 2987
abc301_e H. Pac-Takahashi 1673 3064
abc433_e H. Max Matrix 2 1674 2169
arc186_b B. Typical Permutation Descriptor 1677 998
arc221_a A. Two Arithmetic Progressions 1686 588
abc423_f I. Loud Cicada 1691 1907
arc202_a A. Merge and Increment 1691 846
abc260_e H. At Least One 1692 3232
agc065_a A. Shuffle and mod K 1701 943
abc251_f I. Two Spanning Trees 1703 2715
arc147_c C. Min Diff Sum 1704 1980
abc383_f I. Diversity 1706 2657
arc174_c C. Catastrophic Roulette 1706 1514
arc216_a A. Reversi 3 1708 684
arc219_d D. Grid Game 1716 795
abc330_f I. Minimize Bounding Square 1718 2466
abc262_e H. Red and Blue Graph 1719 2825
abc448_f F. Authentic Traveling Salesman Problem 1719 1880
abc413_g G. Big Banned Grid 1723 2412
abc419_f I. All Included 1726 1756
abc410_f I. Balanced Rectangles 1732 2363
abc224_f I. Problem where +s Separate Digits 1733 2439
abc403_f I. Shortest One Formula 1733 2068
abc427_e E. Wind Cleaning 1734 2014
abc453_g G. Copy Query 1735 1614
abc314_f I. A Certain Game 1736 2589
abc358_g G. AtCoder Tour 1737 2643
abc381_f I. 1122 Subsequence 1739 2260
abc407_f I. Sums of Sliding Window Maximum 1740 2345
abc458_f F. Critical Misread 1744 1434
abc432_d D. Suddenly, A Tempest 1745 2044
arc161_c C. Dyed by Majority (Odd Tree) 1746 1318
abc397_f I. Variety Split Hard 1753 2359
arc222_b B. Circular RPS 1756 724
abc288_d G. Range Add Query 1757 3087
abc353_g G. Merchant Takahashi 1765 2406
arc215_c C. Strong Surname 1767 988
abc325_f I. Sensor Optimization Dilemma 1769 2269
abc333_f I. Bomb Game 2 1770 2373
abc283_f I. Permutation Distance 1771 2391
arc179_c C. Beware of Overflow 1771 1452
abc257_f I. Teleporter Setting 1775 2827
abc426_f I. Clearance 1776 2264
arc195_c C. Hamiltonian Pieces 1777 932
arc192_b B. Fennec VS. Snuke 2 1783 1322
agc064_b B. Red and Blue Spanning Tree 1787 995
arc209_b B. Minimize Even Palindrome 1787 652
arc201_c C. Prefix Covering 1789 1151
abc359_f I. Tree Degree Optimization 1792 2860
arc211_c C. Forest 1792 735
arc180_b B. Improve Inversions 1797 1633
abc390_f I. Double Sum 3 1801 2215
arc181_c C. Row and Column Order 1801 1454
abc283_e H. Don't Isolate Elements 1802 2675
arc150_c C. Path and Subsequence 1802 1722
arc157_c C. YY Square 1802 1615
abc421_f I. Erase between X and Y 1805 2296
arc143_c C. Piles of Pebbles 1805 1616
abc268_f I. Best Concatenation 1807 2326
arc201_b B. Binary Knapsack 1808 1475
abc296_f I. Simultaneous Swap 1811 2087
arc166_c C. LU / RD Marking 1813 1451
agc068_b B. 01 Graph Construction 1813 566
abc324_f I. Beautiful Path 1815 2931
abc392_g G. Fine Triplets 1817 2006
abc366_f I. Maximum Composition 1819 2969
abc312_g G. Avoid Straight Line 1819 2478
arc200_a A. Dot Product 1821 1183
arc212_c C. ABS Ball 1825 964
arc218_c C. Amidakuji 1826 781
abc425_f F. Inserting Process 1831 2320
arc217_b B. Not High Element 1834 791
abc338_f I. Negative Traveling Salesman 1835 2510
agc075_a A. Divide Grid 1837 512
abc346_f I. SSttrriinngg in StringString 1840 2368
abc368_g G. Add and Multiply Queries 1841 2303
abc300_f I. More Holidays 1846 2335
arc210_c C. Fair Coin Partition 1846 862
arc208_c C. Mod of XOR 1849 951
abc438_f F. Sum of Mex 1852 1551
arc205_d D. Non-Ancestor Matching 1853 1211
abc237_f I. |LIS| = 3 1857 2628
abc232_f I. Simple Operations on Sequence 1857 2155
abc429_f I. Shortest Path Query 1859 1602
arc160_c C. Power Up 1861 1392
abc386_f I. Operate K 1875 2055
arc158_c C. All Pair Digit Sums 1875 1773
abc285_f I. Substring of Sorted String 1876 2165
abc264_f I. Monochromatic Path 1878 2118
arc154_c C. Roller 1881 1287
agc059_b B. Arrange Your Balls 1887 910
abc456_f F. Plan Holidays 1888 1388
arc189_b B. Minimize Sum 1889 1240
abc294_f I. Sugar Water 2 1891 2390
abc302_g G. Sort from 1 to 4 1891 1756
abc404_g G. Specified Range Sums 1894 1730
arc125_c C. LIS to Original Sequence 1896 1658
abc389_e H. Square Price 1897 2774
abc411_f I. Contraction 1898 1747
abc384_f I. Double Sum 2 1908 2138
arc194_c C. Cost to Flip 1913 1042
arc188_a A. ABC Symmetry 1914 1112
abc229_f I. Make Bipartite 1917 2179
arc204_a A. Use Udon Coupon 1923 785
abc355_f I. MST Query 1924 2540
abc268_e H. Chinese Restaurant (Three-Star Version) 1927 1813
abc457_g G. Catch All Apples 1928 1193
arc206_d D. LIS ∩ LDS 1930 864
arc216_b B. Range Mex Sum 1935 495
arc151_c C. 01 Game 1940 1526
abc461_f F. Total Product is N 1940 1285
abc236_f I. Spices 1943 2423
abc258_g G. Triangle 1944 3077
arc222_c C. 2 Directions vs 4 Directions 1945 564
abc462_f F. More ABC 1952 1062
agc057_b B. 2A + x 1952 1036
arc198_c C. Error Swap 1954 848
abc348_f I. Oddly Similar 1955 2557
abc446_g G. 221 Subsequence 1955 1041
abc239_f I. Construct Highway 1959 2012
arc153_c C. ± Increasing Sequence 1960 1395
abc259_f I. Select Edges 1961 2921
arc164_d D. 1D Coulomb 1963 1244
abc443_f F. Non-Increasing Number 1967 1495
abc450_f F. Strongly Connected 2 1967 1421
abc249_e H. RLE 1970 1993
agc059_a A. My Last ABC Problem 1970 1062
arc215_d D. cresc. 1975 798
arc207_b B. Balanced Neighbors 2 1979 759
abc311_f I. Yet Another Grid Task 1984 1870
abc432_g G. Sum of Binom(A, B) 1984 873
agc076_a A. Hamming-Distant Arrays 1986 494
abc460_f F. Farthest Pair Query 1987 1111
abc449_f F. Grid Clipping 1987 1069