| 1068 | Weird Algorithm | |
| 1083 | Missing Number | |
| 1069 | Repetitions | |
| 1094 | Increasing Array | |
| 1070 | Permutations | |
| 1071 | Number Spiral | |
| 1072 | Two Knights | |
| 1092 | Two Sets | |
| 1617 | Bit Strings | |
| 1618 | Trailing Zeros | |
| 1754 | Coin Piles | |
| 1755 | Palindrome Reorder | |
| 2205 | Gray Code | |
| 2165 | Tower of Hanoi | |
| 1622 | Creating Strings | |
| 1623 | Apple Division | |
| 1624 | Chessboard and Queens | |
| 3399 | Raab Game I | |
| 3419 | Mex Grid Construction | |
| 3217 | Knight Moves Grid | |
| 3311 | Grid Coloring I | |
| 2431 | Digit Queries | |
| 1743 | String Reorder | |
| 1625 | Grid Path Description |
| 1621 | Distinct Numbers 已用過 | |
| 1084 | Apartments 已用過 | |
| 1090 | Ferris Wheel 已用過 | |
| 1091 | Concert Tickets 已用過 | |
| 1619 | Restaurant Customers 已用過 | |
| 1629 | Movie Festival 已用過 | |
| 1640 | Sum of Two Values 已用過 | |
| 1643 | Maximum Subarray Sum 已用過 | |
| 1074 | Stick Lengths 已用過 | |
| 2183 | Missing Coin Sum 已用過 | |
| 2216 | Collecting Numbers | |
| 2217 | Collecting Numbers II | |
| 1141 | Playlist | |
| 1073 | Towers | |
| 1163 | Traffic Lights | |
| 3420 | Distinct Values Subarrays | |
| 3421 | Distinct Values Subsequences | |
| 2162 | Josephus Problem I | |
| 2163 | Josephus Problem II | |
| 2168 | Nested Ranges Check | |
| 2169 | Nested Ranges Count | |
| 1164 | Room Allocation | |
| 1620 | Factory Machines | |
| 1630 | Tasks and Deadlines | |
| 1631 | Reading Books | |
| 1641 | Sum of Three Values | |
| 1642 | Sum of Four Values | |
| 1645 | Nearest Smaller Values | |
| 1660 | Subarray Sums I | |
| 1661 | Subarray Sums II | |
| 1662 | Subarray Divisibility | |
| 2428 | Distinct Values Subarrays II | |
| 1085 | Array Division | |
| 1632 | Movie Festival II | |
| 1644 | Maximum Subarray Sum II |
| 1633 | Dice Combinations 已用過 | |
| 1634 | Minimizing Coins 已用過 | |
| 1635 | Coin Combinations I 已用過 | |
| 1636 | Coin Combinations II 已用過 | |
| 1637 | Removing Digits 已用過 | |
| 1638 | Grid Paths I 已用過 | |
| 1158 | Book Shop 已用過 | |
| 1746 | Array Description 已用過 | |
| 2413 | Counting Towers 已用過 | |
| 1639 | Edit Distance 已用過 | |
| 3403 | Longest Common Subsequence 已用過 | |
| 1744 | Rectangle Cutting 已用過 | |
| 3359 | Minimal Grid Path 已用過 | |
| 1745 | Money Sums 已用過 | |
| 1097 | Removal Game 已用過 | |
| 1093 | Two Sets II 已用過 | |
| 3314 | Mountain Range 已用過 | |
| 1145 | Increasing Subsequence 已用過 | |
| 1140 | Projects 已用過 | |
| 1653 | Elevator Rides 已用過 | |
| 2181 | Counting Tilings 已用過 | |
| 2220 | Counting Numbers 已用過 | |
| 1748 | Increasing Subsequence II 已用過 |
| 1192 | Counting Rooms 已用過 | |
| 1193 | Labyrinth 已用過 | |
| 1666 | Building Roads 已用過 | |
| 1667 | Message Route 已用過 | |
| 1668 | Building Teams 已用過 | |
| 1669 | Round Trip 已用過 | |
| 1194 | Monsters 已用過 | |
| 1671 | Shortest Routes I 已用過 | |
| 1672 | Shortest Routes II 已用過 | |
| 1673 | High Score 已用過 | |
| 1195 | Flight Discount 已用過 | |
| 1197 | Cycle Finding 已用過 | |
| 1196 | Flight Routes 已用過 | |
| 1678 | Round Trip II 已用過 | |
| 1679 | Course Schedule 已用過 | |
| 1680 | Longest Flight Route 已用過 | |
| 1681 | Game Routes 已用過 | |
| 1202 | Investigation 已用過 | |
| 1750 | Planets Queries I 已用過 | |
| 1160 | Planets Queries II | |
| 1751 | Planets Cycles | |
| 1675 | Road Reparation 已用過 | |
| 1676 | Road Construction 已用過 | |
| 1682 | Flight Routes Check 已用過 | |
| 1683 | Planets and Kingdoms 已用過 | |
| 1684 | Giant Pizza | |
| 1686 | Coin Collector 已用過 | |
| 1691 | Mail Delivery | |
| 1692 | De Bruijn Sequence | |
| 1693 | Teleporters Path | |
| 1690 | Hamiltonian Flights 已用過 | |
| 1689 | Knight's Tour | |
| 1694 | Download Speed | |
| 1695 | Police Chase | |
| 1696 | School Dance | |
| 1711 | Distinct Routes |
| 1646 | Static Range Sum Queries | |
| 1647 | Static Range Minimum Queries | |
| 1648 | Dynamic Range Sum Queries | |
| 1649 | Dynamic Range Minimum Queries | |
| 1650 | Range Xor Queries | |
| 1651 | Range Update Queries | |
| 1652 | Forest Queries | |
| 1143 | Hotel Queries | |
| 1749 | List Removals | |
| 1144 | Salary Queries | |
| 2166 | Prefix Sum Queries | |
| 2206 | Pizzeria Queries | |
| 3304 | Visible Buildings Queries | |
| 3163 | Range Interval Queries | |
| 1190 | Subarray Sum Queries | |
| 3226 | Subarray Sum Queries II | |
| 1734 | Distinct Values Queries | |
| 3356 | Distinct Values Queries II | |
| 2416 | Increasing Array Queries | |
| 1664 | Movie Festival Queries | |
| 1739 | Forest Queries II | |
| 1735 | Range Updates and Sums | |
| 1736 | Polynomial Queries | |
| 1737 | Range Queries and Copies | |
| 2184 | Missing Coin Sum Queries |
| 1674 | Subordinates | |
| 1130 | Tree Matching | |
| 1131 | Tree Diameter | |
| 1132 | Tree Distances I | |
| 1133 | Tree Distances II | |
| 1687 | Company Queries I | |
| 1688 | Company Queries II | |
| 1135 | Distance Queries | |
| 1136 | Counting Paths | |
| 1137 | Subtree Queries | |
| 1138 | Path Queries | |
| 2134 | Path Queries II | |
| 1139 | Distinct Colors | |
| 2079 | Finding a Centroid | |
| 2080 | Fixed-Length Paths I | |
| 2081 | Fixed-Length Paths II |
| 2164 | Josephus Queries | |
| 1095 | Exponentiation | |
| 1712 | Exponentiation II | |
| 1713 | Counting Divisors | |
| 1081 | Common Divisors | |
| 1082 | Sum of Divisors | |
| 2182 | Divisor Analysis | |
| 2185 | Prime Multiples | |
| 2417 | Counting Coprime Pairs | |
| 3396 | Next Prime | |
| 1079 | Binomial Coefficients | |
| 1715 | Creating Strings II | |
| 1716 | Distributing Apples | |
| 1717 | Christmas Party | |
| 3397 | Permutation Order | |
| 3398 | Permutation Rounds | |
| 2064 | Bracket Sequences I | |
| 2187 | Bracket Sequences II | |
| 2209 | Counting Necklaces | |
| 2210 | Counting Grids | |
| 1722 | Fibonacci Numbers | |
| 1096 | Throwing Dice | |
| 1723 | Graph Paths I | |
| 1724 | Graph Paths II | |
| 3154 | System of Linear Equations | |
| 3355 | Sum of Four Squares | |
| 3406 | Triangle Number Sums | |
| 1725 | Dice Probability | |
| 1726 | Moving Robots | |
| 1727 | Candy Lottery | |
| 1728 | Inversion Probability | |
| 1729 | Stick Game | |
| 1730 | Nim Game I | |
| 1098 | Nim Game II | |
| 1099 | Stair Game | |
| 2207 | Grundy's Game | |
| 2208 | Another Game |
| 1731 | Word Combinations | |
| 1753 | String Matching | |
| 1732 | Finding Borders | |
| 1733 | Finding Periods | |
| 1110 | Minimal Rotation | |
| 1111 | Longest Palindrome | |
| 3138 | All Palindromes | |
| 1112 | Required Substring | |
| 2420 | Palindrome Queries | |
| 2102 | Finding Patterns | |
| 2103 | Counting Patterns | |
| 2104 | Pattern Positions | |
| 2105 | Distinct Substrings | |
| 1149 | Distinct Subsequences | |
| 2106 | Repeating Substring | |
| 2107 | String Functions | |
| 3225 | Inverse Suffix Array | |
| 1113 | String Transform | |
| 2108 | Substring Order I | |
| 2109 | Substring Order II | |
| 2110 | Substring Distribution |
| 2189 | Point Location Test | |
| 2190 | Line Segment Intersection | |
| 2191 | Polygon Area | |
| 2192 | Point in Polygon | |
| 2193 | Polygon Lattice Points | |
| 2194 | Minimum Euclidean Distance | |
| 2195 | Convex Hull | |
| 3410 | Maximum Manhattan Distances | |
| 3411 | All Manhattan Distances | |
| 1740 | Intersection Points | |
| 3427 | Line Segments Trace I | |
| 3428 | Line Segments Trace II | |
| 3429 | Lines and Queries I | |
| 3430 | Lines and Queries II | |
| 1741 | Area of Rectangles | |
| 1742 | Robot Path |
| 1628 | Meet in the Middle | |
| 2136 | Hamming Distance | |
| 3360 | Corner Subgrid Check | |
| 2137 | Corner Subgrid Count | |
| 2138 | Reachable Nodes | |
| 2143 | Reachability Queries | |
| 2072 | Cut and Paste | |
| 2073 | Substring Reversals | |
| 2074 | Reversals and Sums | |
| 2076 | Necessary Roads | |
| 2077 | Necessary Cities | |
| 2078 | Eulerian Subgraphs | |
| 2084 | Monster Game I | |
| 2085 | Monster Game II | |
| 2086 | Subarray Squares | |
| 2087 | Houses and Schools | |
| 2088 | Knuth Division | |
| 2111 | Apples and Bananas | |
| 2112 | One Bit Positions | |
| 2113 | Signal Processing | |
| 2101 | New Roads Queries | |
| 2133 | Dynamic Connectivity | |
| 2121 | Parcel Delivery | |
| 2129 | Task Assignment | |
| 2130 | Distinct Routes II |
| 3220 | Sliding Window Sum | |
| 3221 | Sliding Window Minimum | |
| 3426 | Sliding Window Xor | |
| 3405 | Sliding Window Or | |
| 3222 | Sliding Window Distinct Values | |
| 3224 | Sliding Window Mode | |
| 3219 | Sliding Window Mex | |
| 1076 | Sliding Window Median | |
| 1077 | Sliding Window Cost | |
| 3223 | Sliding Window Inversions | |
| 3227 | Sliding Window Advertisement |
| 3112 | Hidden Integer | |
| 3139 | Hidden Permutation | |
| 3305 | K-th Highest Score | |
| 3228 | Permuted Binary Strings | |
| 3273 | Colored Chairs | |
| 3140 | Inversion Sorting |
| 1146 | Counting Bits | |
| 1655 | Maximum Xor Subarray | |
| 3191 | Maximum Xor Subset | |
| 3211 | Number of Subset Xors | |
| 3192 | K Subset Xors | |
| 3233 | All Subarray Xors | |
| 2419 | Xor Pyramid Peak | |
| 3194 | Xor Pyramid Diagonal | |
| 3195 | Xor Pyramid Row | |
| 1654 | SOS Bit Problem | |
| 3141 | And Subset Count |
| 2214 | Inverse Inversions | |
| 2215 | Monotone Subsequences | |
| 3422 | Third Permutation | |
| 3423 | Permutation Prime Sums | |
| 1697 | Chess Tournament | |
| 3424 | Distinct Sums Grid | |
| 2423 | Filling Trominos | |
| 2418 | Grid Path Construction |
| 3303 | Nearest Shops | |
| 1134 | Prüfer Code | |
| 1702 | Tree Traversals | |
| 1757 | Course Schedule II | |
| 1756 | Acyclic Graph Edges | |
| 2177 | Strongly Connected Edges | |
| 2179 | Even Outdegree Edges | |
| 1707 | Graph Girth | |
| 3357 | Fixed Length Walk Queries | |
| 3111 | Transfer Speeds Sum | |
| 3407 | MST Edge Check | |
| 3408 | MST Edge Set Check | |
| 3409 | MST Edge Cost | |
| 1677 | Network Breakdown | |
| 3114 | Tree Coin Collecting I | |
| 3149 | Tree Coin Collecting II | |
| 1700 | Tree Isomorphism I | |
| 1701 | Tree Isomorphism II | |
| 1699 | Flight Route Requests | |
| 1703 | Critical Cities | |
| 1203 | Visiting Cities | |
| 3308 | Graph Coloring | |
| 3158 | Bus Companies | |
| 3358 | Split into Two Paths | |
| 1704 | Network Renovation | |
| 1705 | Forbidden Cities | |
| 1752 | Creating Offices | |
| 1685 | New Flight Routes |
| 3413 | Filled Subgrid Count I | |
| 3414 | Filled Subgrid Count II | |
| 3415 | All Letter Subgrid Count I | |
| 3416 | All Letter Subgrid Count II | |
| 3417 | Border Subgrid Count I | |
| 3418 | Border Subgrid Count II | |
| 3400 | Raab Game II | |
| 1080 | Empty String | |
| 2229 | Permutation Inversions | |
| 2176 | Counting Bishops | |
| 2228 | Counting Sequences | |
| 1078 | Grid Paths II | |
| 1075 | Counting Permutations | |
| 2429 | Grid Completion | |
| 2421 | Counting Reorders | |
| 3232 | Tournament Graph Distribution | |
| 3157 | Collecting Numbers Distribution | |
| 2415 | Functional Graph Distribution |
| 1087 | Shortest Subsequence | |
| 3150 | Distinct Values Sum | |
| 3190 | Distinct Values Splits | |
| 1670 | Swap Game | |
| 3175 | Beautiful Permutation II | |
| 2422 | Multiplication Table | |
| 3151 | Bubble Sort Rounds I | |
| 3152 | Bubble Sort Rounds II | |
| 3306 | Nearest Campsites I | |
| 3307 | Nearest Campsites II | |
| 1142 | Advertisement | |
| 2186 | Special Substrings | |
| 3169 | Counting LCM Arrays | |
| 3193 | Square Subsets | |
| 3294 | Subarray Sum Constraints | |
| 3213 | Water Containers Moves | |
| 3214 | Water Containers Queries | |
| 2425 | Stack Weights | |
| 3301 | Maximum Average Subarrays | |
| 3302 | Subsets with Fixed Average | |
| 3361 | Two Array Average | |
| 1747 | Pyramid Array | |
| 3404 | Permutation Subsequence | |
| 1188 | Bit Inversions | |
| 1086 | Writing Numbers | |
| 2427 | Letter Pair Move Game | |
| 1147 | Maximum Building I | |
| 1162 | Sorting Methods | |
| 1191 | Cyclic Array | |
| 2414 | List of Sums |
| 3215 | Bouncing Ball Steps | |
| 3216 | Bouncing Ball Cycle | |
| 3218 | Knight Moves Queries | |
| 3108 | K Subset Sums I | |
| 3109 | K Subset Sums II | |
| 2132 | Increasing Array II | |
| 1189 | Food Division | |
| 1698 | Swap Round Sorting | |
| 2430 | Binary Subsequences | |
| 1706 | School Excursion | |
| 1709 | Coin Grid | |
| 3312 | Grid Coloring II | |
| 2426 | Programmers and Artists | |
| 2174 | Removing Digits II | |
| 2180 | Coin Arrangement | |
| 3159 | Replace with Difference | |
| 2432 | Grid Puzzle I | |
| 2131 | Grid Puzzle II | |
| 2115 | Bit Substrings | |
| 2075 | Reversal Sorting | |
| 1159 | Book Shop II | |
| 3161 | GCD Subsets | |
| 3402 | Minimum Cost Pairs | |
| 3425 | Same Sum Subsets | |
| 1157 | Mex Grid Queries | |
| 1148 | Maximum Building II | |
| 1161 | Stick Divisions | |
| 3401 | Stick Difference | |
| 1665 | Coding Company | |
| 2402 | Two Stacks Sorting |