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- The Number Games2200Codeforcesdata structuresgreedytrees
- The Number of Pairs2100Codeforcesdpmathnumber theory
- The One Where No One is Ready2514CodeChef
- The Queue2100Codeforcesbrute forcegreedy
- The Street 2577CodeChef
- The Subarray XOR2521CodeChef
- The Unbearable Lightness of Weights2100Codeforcesdpmath
- The Wall (hard)2100Codeforcesdp
- The Winter Hike2100Codeforcesconstructive algorithmsgreedymath
- The XOR-OR Dilemma2543CodeChef
- The minimal unique substring2200Codeforcesconstructive algorithmsmathstrings
- The table2100Codeforcesconstructive algorithmsgreedy
- The way home2100Codeforcesbinary searchdata structuresdpgraphs
- There Should Be a Lot of Maximums2300Codeforcesbrute forcedata structuresdfs and similardp
- There and Back Again2100Codeforces
- They are COMING2579CodeChef
- Third Month Insanity2100Codeforcesdpprobabilitiestrees
- Three Chairs2300Codeforcesbitmasksbrute forcecombinatoricsdata structures
- Three Horses2200Codeforcesconstructive algorithmsmathnumber theory
- Three Pieces2200Codeforcesdfs and similardpshortest paths
- Three Religions2200Codeforcesdpimplementationstrings
- Three Sequences2200Codeforcesconstructive algorithmsdata structuresgreedymath
- Three States2200Codeforcesdfs and similargraphsshortest paths
- Thwarting Demonstrations2200Codeforcesbinary searchdata structurestrees
- Tidying Up2200Codeforcesflows
- Tidying Up2300Codeforcesflowsgraph matchings
- Tiling Terrace2300Codeforcesbrute forcedp
- Time of collisions2499CodeChef
- Time to Raid Cowavans2100Codeforcesbrute forcedata structuressortings
- Timetable2300Codeforcesconstructive algorithmsdata structuresgreedymath
- Timofey and Black-White Tree2100Codeforcesbrute forcedfs and similardivide and conquergraphs
- Timofey and rectangles2100Codeforcesconstructive algorithmsgeometry
- To Go Or Not To Go?2200Codeforcesbrute forcedfs and similargraphsgreedy
- Token Removing2100Codeforcescombinatoricsdpmath
- Tokens on Graph2300Codeforcesconstructive algorithmsdfs and similargraphsshortest paths
- Tokitsukaze and Duel2300Codeforcesbrute forcegamesgreedy
- Tom and Jerry2527CodeChef
- Too Far For Comfort (Easy Version)2445CodeChef
- Top Secret Task2300Codeforcesdp
- Topforces Strikes Back2100Codeforcesbrute forcemathsortings
- Tourism2200Codeforcesdfs and similardpdsugraphs
- Tourism2300Codeforcesdpgraphsprobabilities
- Tourist2300Codeforcesbinary searchdata structuresdp
- Tourist Reform2300Codeforcesdfs and similargraphs
- Tournament-graph2200Codeforcesconstructive algorithmsgraphs
- Towers2100Codeforcesdpgreedytwo pointers
- Toys2300Codeforcesbrute forcecombinatorics
- Trader Problem2200Codeforcesdata structuresdsugreedysortings
- Trails (Hard)2200Codeforcesdpmatrices
- Train Maintenance2200Codeforcesbrute forcedata structuresimplementation
- Trains and Statistic2300Codeforcesdata structuresdpgreedy
- Transitive Graph2100Codeforcesdfs and similardpdsugraphs
- Transportation2300Codeforcesgreedysortingstwo pointers
- Trash Problem2100Codeforcesdata structuresimplementation
- Traveling Plan2547CodeChef
- Travelling Chef Problem2575CodeChef
- Travelling Saleschef2409CodeChef
- Travelling Salesman Problem2200Codeforcesbinary searchdata structuresdpgreedy
- Traversing Trees2498CodeChef
- Treasure Hunt2484CodeChef