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- Parking Lot1700Codeforcescombinatoricsmath
- Parking Lot1800Codeforcesdata structuresimplementation
- Partial Teacher1800Codeforcesdpgraphsgreedyimplementation
- Partition the Graph2041CodeChef
- Pashmak and Parmida's problem1800Codeforcesdata structuresdivide and conquersortings
- Password1700Codeforcesbinary searchdphashingstring suffix structures
- Path Prefixes1700Codeforcesbinary searchdata structuresdfs and similartrees
- Path Queries1800Codeforcesdivide and conquerdsugraphssortings
- Pavel and barbecue1700Codeforcesconstructive algorithmsdfs and similar
- Peaceful Rooks1700Codeforcesdfs and similardsugraphs
- Peculiar Movie Preferences1700Codeforcesgreedystrings
- Pekora and Trampoline1700Codeforcesbrute forcedata structuresdpgreedy
- Penchick and Desert Rabbit1700Codeforcesbinary searchdata structuresdfs and similardp
- Perfect Power Divisors2180CodeChef
- Perfect Security1800Codeforcesdata structuresgreedystringstrees
- Periodic integer number1700Codeforcesimplementationstrings
- PermuTree (easy version)1800Codeforcesdfs and similardptrees
- Permutation AND2197CodeChef
- Permutation Construction2084CodeChef
- Permutation Construction1800Codeforcesconstructive algorithmsdata structuressortings
- Permutation Cost Sum2078CodeChef
- Permutation Counting (Easy)2011CodeChef
- Permutation Game1700Codeforcesgames
- Permutations1800Codeforcesbitmasksdivide and conquermath
- Permute Digits1700Codeforcesdpgreedy
- Petr and Permutations1800Codeforcescombinatoricsmath
- Petya and Array1800Codeforcesdata structuresdivide and conquertwo pointers
- Petya and Exam1800Codeforcesgreedysortingstwo pointers
- Petya and File System1800Codeforcesdata structuresimplementation
- Petya and His Friends1700Codeforcesconstructive algorithmsmathnumber theory
- Petya's Exams1700Codeforcesgreedyimplementationsortings
- Phillip and Trains1700Codeforcesdfs and similargraphsshortest paths
- Phone Number1700Codeforcesdp
- Photographs (I)1800Codeforces
- Physics Class2034CodeChef
- Pick Heroes1700Codeforcesgreedyimplementationinteractivesortings
- Pinkie Pie Eats Patty-cakes1700Codeforcesconstructive algorithmsgreedymathsortings
- Pipeline1700Codeforcesbinary searchmath
- Pizza or Broccoli 2000CodeChef
- Planets1700Codeforcesbinary searchdata structuresgraphsshortest paths
- Planting Trees1800Codeforcesconstructive algorithms
- Platforms1700Codeforcesbrute forcemath
- Platforms Jumping1700Codeforcesgreedy
- Playing Piano1700Codeforcesconstructive algorithmsdp
- Playing with Numbers2087CodeChef
- Playing with Permutations1800Codeforcesimplementationmath
- Playoff Tournament1800Codeforcesdata structuresdfs and similardpimplementation
- Pleasing Chief2066CodeChef
- Plus and xor1700Codeforcesdpgreedymath
- Points1700Codeforcesimplementationmath
- Points and Powers of Two1800Codeforcesbrute forcemath
- Polo the Penguin and XOR operation1700Codeforcesimplementationmath
- Polycarp and String Transformation1800Codeforcesbinary searchimplementationsortingsstrings
- Polyline1700Codeforcesconstructive algorithmsimplementation
- Polynom1800Codeforces*specialimplementation
- Portal1700Codeforcesbrute forcedata structuresdpgreedy
- Positive Mex2153CodeChef
- Posterized1700Codeforcesgamesgreedy
- Power Products1800Codeforceshashingmathnumber theory
- Predict Outcome of the Game1700Codeforcesbrute forceimplementationmath