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- Three Logos1700Codeforcesbitmasksbrute forceconstructive algorithmsgeometry
- Three Points2087CodeChef
- Three-dimensional Turtle Super Computer 1800Codeforcesbrute forcedfs and similargraphs
- Tic-tac-toe1800Codeforcesbrute forcegamesimplementation
- Ticket Game1700Codeforcesgamesgreedymath
- Tidying Posters2001CodeChef
- Timetable1800Codeforcesdp
- Toda 21800Codeforcesgreedyimplementation
- Tokitsukaze and Good 01-String (hard version)1800Codeforcesdpgreedyimplementation
- Tokitsukaze and Meeting1700Codeforcesdata structuresimplementationmath
- Tokitsukaze, CSL and Stone Game1800Codeforcesgames
- Tolik and His Uncle1800Codeforcesconstructive algorithms
- Too Easy Problems1800Codeforcesbinary searchbrute forcedata structuresgreedy
- Too Many Impostors (easy version)1800Codeforcesconstructive algorithmsimplementationinteractive
- Too Many Segments (easy version)1800Codeforcesgreedy
- Too Many Segments (hard version)1800Codeforcesdata structuresgreedysortings
- Tournament Countdown1800Codeforcesconstructive algorithmsgreedyinteractivenumber theory
- Tournament Rigging (Minimum)2058CodeChef
- Toy Sum1700Codeforcesgreedyimplementationmath
- Toy Train1800Codeforcesbrute forcegreedy
- Toy Train (Simplified)1700Codeforcesbrute forcegreedy
- Traffic jam2061CodeChef
- Trailing Loves (or L'oeufs?)1700Codeforcesbrute forceimplementationmathnumber theory
- Trails (Easy)1800Codeforcesdp
- Train Splitting1700Codeforcesconstructive algorithmsgraphsgreedy
- Training Plans2065CodeChef
- Training Session1700Codeforcescombinatoricsdata structuresgeometryimplementation
- Transmigration1700Codeforcesimplementation
- Trapmigiano Reggiano1700Codeforcesconstructive algorithmsdata structuresdfs and similardp
- Traps1700Codeforcesconstructive algorithmsgreedysortings
- Travel Cards1800Codeforcesgreedyimplementationsortings
- Travelling Salesman Again !2085CodeChef
- Travelling Salesman and Special Numbers1800Codeforcesbrute forcecombinatoricsdp
- Travelling in the Graph2108CodeChef
- Treasure Hunt1800Codeforcesgreedy
- Treasure Island1700Codeforcesbrute forceimplementation
- Tree Colouring (Easy)2105CodeChef
- Tree Construction1800Codeforcesdata structurestrees
- Tree Counting2089CodeChef
- Tree Cutting (Easy Version)1800Codeforcesdfs and similartrees
- Tree Diameter1700Codeforcesbitmasksgraphsinteractive
- Tree Expectancy2081CodeChef
- Tree House2023CodeChef
- Tree Orientation (Easy Version)1800Codeforcesconstructive algorithmsdfs and similardsugraphs
- Tree Pruning1700Codeforcesbrute forcedfs and similargreedysortings
- Tree Sets2179CodeChef
- Trees1800Codeforcesbrute force
- Trees Again2114CodeChef
- Triangle Construction1700Codeforcesgreedymath
- Triangles1700Codeforcesgreedyimplementation
- Triangular Swaps2071CodeChef
- TripTastic2095CodeChef
- Triple Inversions2169CodeChef
- Triple Sort2012CodeChef
- Try and Catch1800Codeforcesexpression parsingimplementation
- Turn1800Codeforcesgeometrymath
- Turtle and an Incomplete Sequence1800Codeforcesbitmasksbrute forceconstructive algorithmsgreedy
- Twice Greater2152CodeChef
- Twin Buildings1800Codeforcesgreedyimplementation
- Two Arrays1800Codeforces*specialmath