| 
          
         | 
        3591 | 
                
              P1214E
  Petya and Construction Set
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3588 | 
                
              P1214H
  Tiles Placement
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3569 | 
                
              P1217F
  Forced Online Queries Problem
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3553 | 
                
              P1220E
  Tourism
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3539 | 
                
              P1223E
  Paint the Tree
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3530 | 
                
              P1225F
  Tree Factory
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3514 | 
                
              P1228F
  One Node is Gone
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3482 | 
                
              P1238F
  The Maximum Subtree
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3462 | 
                
              P1244D
  Paint the Tree
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3455 | 
                
              P1245D
  Shichikuji and Power Grid
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3440 | 
                
              P1249F
  Maximum Weight Subset
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3417 | 
                
              P1252B
  Cleaning Robots
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3415 | 
                
              P1252D
  Find String in a Grid
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3413 | 
                
              P1252F
  Regular Forestation
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3401 | 
                
              P1253F
  Cheap Robot
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3396 | 
                
              P1254D
  Tree Queries
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3395 | 
                
              P1254E
  Send Tree to Charlie
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3373 | 
                
              P1260F
  Colored Tree
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3366 | 
                
              P1263F
  Economic Difficulties
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3304 | 
                
              P1276D
  Tree Elimination
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3295 | 
                
              P1278D
  Segment Tree
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3294 | 
                
              P1278E
  Tests for problem D
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3284 | 
                
              P1280C
  Jeremy Bearimy
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3283 | 
                
              P1280D
  Miss Punyverse
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3267 | 
                
              P1283F
  DIY Garland
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3261 | 
                
              P1284F
  New Year and Social Network
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3256 | 
                
              P1285D
  Dr
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3255 | 
                
              P1285E
  Delete a Segment
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3252 | 
                
              P1286B
  Numbers on Tree
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3227 | 
                
              P1292C
  Xenon's Attack on the Gangs
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3226 | 
                
              P1292D
  Chaotic V.
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3216 | 
                
              P1294F
  Three Paths on a Tree
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3203 | 
                
              P1296F
  Berland Beauty
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3198 | 
                
              P1297E
  Modernization of Treeland
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3190 | 
                
              P1299D
  Around the World
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3164 | 
                
              P1303G
  Sum of Prefix Sums
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3159 | 
                
              P1304E
  1-Trees and Queries
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        3153 | 
                
              P1305D
  Kuroni and the Celebration
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3143 | 
                
              P1307F
  Cow and Vacation
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3131 | 
                
              P1311E
  Construct the Binary Tree
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        3103 | 
                
              P1320E
  Treeland and Viruses
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3094 | 
                
              P1322F
  Assigning Fares
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3086 | 
                
              P1324F
  Maximum White Subtree
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3083 | 
                
              P1325C
  Ehab and Path-etic MEXs
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        3071 | 
                
              P1326G
  Spiderweb Trees
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3059 | 
                
              P1328E
  Tree Queries
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3037 | 
                
              P1332F
  Independent Set
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        3015 | 
                
              P1336A
  Linova and Kingdom
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        3009 | 
                
              P1336F
  Journey
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        3005 | 
                
              P1338B
  Edge Weight Assignment
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        3003 | 
                
              P1338D
  Nested Rubber Bands
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2996 | 
                
              P1340D
  Nastya and Time Machine
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2975 | 
                
              P1344E
  Train Tracks
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2866 | 
                
              P1361D
  Johnny and James
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2865 | 
                
              P1361E
  James and the Chase
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2858 | 
                
              P1363C
  Game On Leaves
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        2856 | 
                
              P1363E
  Tree Shuffling
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2851 | 
                
              P1364D
  Ehab's Last Corollary
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2822 | 
                
              P1368G
  Shifting Dominoes
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2816 | 
                
              P1369D
  TediousLee
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        2808 | 
                
              P1370F1
  The Hidden Pair (Easy Version)
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        2807 | 
                
              P1370F2
  The Hidden Pair (Hard Version)
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2773 | 
                
              P1375G
  Tree Modification
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2766 | 
                
              P1379E
  Inverse Genealogy
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2759 | 
                
              P1380E
  Merging Towers
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        2752 | 
                
              P1381D
  The Majestic Brown Tree Snake
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2748 | 
                
              P1383A
  String Transformation 1
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        2746 | 
                
              P1383C
  String Transformation 2
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2734 | 
                
              P1385F
  Removing Leaves
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        2728 | 
                
              P1387B1
  Village (Minimum)
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2727 | 
                
              P1387B2
  Village (Maximum)
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        2723 | 
                
              P1388C
  Uncle Bogdan and Country Happiness
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        2722 | 
                
              P1388D
  Captain Flint and Treasure
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2714 | 
                
              P1389G
  Directing Edges
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2709 | 
                
              P1391E
  Pairs of Pairs
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2690 | 
                
              P1394D
  Boboniu and Jianghu
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2681 | 
                
              P1396E
  Distance Matching
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2667 | 
                
              P1399E1
  Weights Division (easy version)
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2666 | 
                
              P1399E2
  Weights Division (hard version)
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        2654 | 
                
              P1401D
  Maximum Distributed Tree
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        2649 | 
                
              P1402C
  Star Trek
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2647 | 
                
              P1403B
  Spring cleaning
         | 
        0 / 0 | 
        8 | 
      
      
        | 
          
         | 
        2644 | 
                
              P1404B
  Tree Tag
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        2636 | 
                
              P1406C
  Link Cut Centroids
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        2624 | 
                
              P1408E
  Avoid Rainbow Cycles
         | 
        0 / 0 | 
        9 | 
      
      
        | 
          
         | 
        2622 | 
                
              P1408G
  Clusterization Counting
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2601 | 
                
              P1413F
  Roads and Ramen
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2592 | 
                
              P1416C
  XOR Inverse
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2591 | 
                
              P1416D
  Graph and Queries
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2553 | 
                
              P1423C
  Dušan's Railway
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2520 | 
                
              P1427F
  Boring Card Game
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2480 | 
                
              P1436D
  Bandit in a City
         | 
        0 / 0 | 
        6 | 
      
      
        | 
          
         | 
        2474 | 
                
              P1437D
  Minimal Height Tree
         | 
        0 / 0 | 
        5 | 
      
      
        | 
          
         | 
        2471 | 
                
              P1437G
  Death DBMS
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2465 | 
                
              P1438F
  Olha and Igor
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2459 | 
                
              P1439E
  Cheat and Win
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2452 | 
                
              P1442E
  Black, White and Grey Tree
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2442 | 
                
              P1444E
  Finding the Vertex
         | 
        0 / 0 | 
        10 | 
      
      
        | 
          
         | 
        2437 | 
                
              P1446C
  Xor Tree
         | 
        0 / 0 | 
        7 | 
      
      
        | 
          
         | 
        2423 | 
                
              P1450G
  Communism
         | 
        0 / 0 | 
        10 |