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- Prinzessin der Verurteilung1200Codeforcesbrute forceconstructive algorithmsstrings
- Prison Transfer1100Codeforcesdata structuresimplementation
- Prizes, Prizes, more Prizes1200Codeforcesimplementation
- Problem About Equation1100Codeforcesmath
- Product of Binary Decimals1100Codeforcesbrute forcedpimplementationnumber theory
- Production of Snowmen1200Codeforcesbrute forcecombinatoricsdp
- Professor And Directions1420CodeChef
- Proper Nutrition1100Codeforcesbrute forceimplementationnumber theory
- Pseudorandom Sequence Period1200Codeforces*specialimplementationnumber theory
- Pursuit1200Codeforcesbinary searchbrute forcegreedysortings
- Putting Bricks in the Wall1100Codeforcesconstructive algorithmsimplementation
- Pythagorean Theorem II1200Codeforcesbrute forcemath
- Quadcopter Competition1100Codeforcesgreedymath
- Quests1100Codeforcesgreedymath
- Quiz League1100Codeforcesimplementation
- Random NIM1475CodeChef
- Random Nim1523CodeChef
- Randomly Testing Circuits1539CodeChef
- Rank List1100Codeforcesbinary searchimplementationsortings
- Reach The Point1495CodeChef
- Reachable Numbers1100Codeforcesimplementation
- Rebranding1200Codeforcesimplementationstrings
- Recipe Reconstruction1521CodeChef
- Rectangle Filling1100Codeforcesconstructive algorithmsimplementation
- Rectangular Game1200Codeforcesnumber theory
- Red-Black Pairs1100Codeforcesdpgreedy
- Reduce to One1507CodeChef
- Redundant Array1499CodeChef
- Regular Bracket Sequence1100Codeforcesgreedyimplementation
- Remainder1100Codeforcesimplementationmath
- Remember the recipe1529CodeChef
- Remilia Plays Soku1100Codeforcesgamesimplementation
- Removal of Unattractive Pairs1200Codeforcesconstructive algorithmsgreedymathstrings
- Remove Element1415CodeChef
- Remove Two Letters1200Codeforcesdata structuresgreedyhashingstrings
- Removing Smallest Multiples1200Codeforcesgreedymath
- Renako Amaori and XOR Game (easy version)1100Codeforcesbitmasksgamesgreedy
- Repainting Street1100Codeforcesbrute forcegreedy
- Replace and Keep Sorted1200Codeforcesdpimplementationmath
- Replace with Occurrences1200Codeforcesconstructive algorithms
- Replacement1100Codeforcesconstructive algorithmsgamesstrings
- Replacing Digits1100Codeforcesgreedy
- Reposts1200Codeforces*specialdfs and similardpgraphs
- Restaurant Tables1200Codeforcesimplementation
- Restore Sequence1513CodeChef
- Restore the Array1100Codeforcesconstructive algorithmsgreedy
- Restoring Permutation1200Codeforcesgreedy
- Restricted RPS1200Codeforcesconstructive algorithmsdpgreedy
- Retaliation1200Codeforcesbinary searchmathnumber theory
- Reverse Binary Strings1200Codeforcesconstructive algorithmsgreedy
- Reversing directions1426CodeChef
- Right Left Wrong1200Codeforcesgreedyimplementationtwo pointers
- Right Triangle1572CodeChef
- Road Signs1592CodeChef
- Robin Hood in Town1100Codeforcesbinary searchgreedymath
- Robot Program1100Codeforcesbrute forceimplementationmath
- Robot's Task1200Codeforcesgreedyimplementation
- Rock and Lever1200Codeforcesbitmasksmath
- Rock-Paper-Scissors1454CodeChef
- Roma and Changing Signs1200Codeforcesgreedy