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- Prime Square900Codeforcesconstructive algorithmsmath
- Prime Subtraction900Codeforcesmathnumber theory
- Print Pattern1283CodeChef
- Problem Difficulties1321CodeChef
- Progressive Square1000Codeforcesconstructive algorithmsdata structuresimplementationsortings
- Promo900Codeforcesgreedysortings
- Protect Sheep900Codeforcesbrute forcedfs and similargraphsimplementation
- Pupils Redistribution1000Codeforcesconstructive algorithmsmath
- Pushing Balls1000Codeforcesbrute forcedpimplementation
- Puzzles900Codeforcesgreedy
- Quasi-palindrome900Codeforcesbrute forceimplementation
- Queue on Bus Stop1000Codeforcesimplementation
- Quick Sort900Codeforcesgreedymath
- Racing Horses1231CodeChef
- Radio Station900Codeforcesimplementationstrings
- Raising Bacteria1000Codeforcesbitmasks
- Rakhsh's Revival1000Codeforcesdata structuresgreedyimplementationtwo pointers
- Raspberries1000Codeforcesdpmath
- Reading1000Codeforcessortings
- Recruit Villagers1270CodeChef
- Rectangular Game1000Codeforcesnumber theory
- Red Alert1271CodeChef
- Red Versus Blue1000Codeforcesconstructive algorithmsgreedyimplementationmath
- Red and Blue1000Codeforcesdpgreedy
- Regular Bracket Sequence1000Codeforcesconstructive algorithmsgreedy
- Relatively Prime Pairs1000Codeforcesgreedymathnumber theory
- Removals Game1000Codeforcesconstructive algorithmsgames
- Remove Multiples1315CodeChef
- Replace Character900Codeforcesbrute forcecombinatoricsgreedystrings
- Replace and Sum1000Codeforcesdata structuresgreedy
- Restore the Weather900Codeforcesgreedysortings
- Restoring Password900Codeforcesimplementationstrings
- Reverse Sort1000Codeforcesgreedysortings
- Reverse a Substring1000Codeforcesimplementationsortingsstrings
- Reversing Encryption900Codeforcesimplementation
- Road To Zero1000Codeforcesgreedymath
- Roadside Trees (Simplified Edition)1000Codeforcesgreedyimplementation
- Robot Sequence1000Codeforcesbrute forceimplementation
- Rock Paper Scissor1226CodeChef
- Rock Paper Scissors1220CodeChef
- Rock-paper-scissors900Codeforcesimplementationschedules
- Romaji900Codeforcesimplementationstrings
- Roman and Browser1000Codeforcesimplementation
- Roof Construction1000Codeforcesbitmasksconstructive algorithms
- Room Leader1000Codeforcesimplementation
- Rooms and Staircases1000Codeforcesbrute forceimplementation
- Round House1000Codeforcesimplementationmath
- Rudolf and 1211000Codeforcesbrute forcedpgreedymath
- Rudolf and the Ugly String900Codeforcesdpgreedystrings
- Rule of League900Codeforcesconstructive algorithmsmath
- Sad Splits1390CodeChef
- Sage's Birthday (easy version)1000Codeforcesbinary searchconstructive algorithmsgreedysortings
- Saitama Destroys Hotel1000Codeforcesimplementationmath
- Sakurako and Water900Codeforcesbrute forceconstructive algorithmsgreedy
- Sale900Codeforcesgreedysortings
- Santa Claus and Candies1000Codeforcesdpgreedymath
- Santa and Chocolates1285CodeChef
- Sarthak and his Magic Grid1227CodeChef
- Sasha and His Trip900Codeforcesdpgreedymath
- Save More Mice1000Codeforcesbinary searchgreedy