| 1851 | Piete | Alexandru Paicu | Concursul National Urmasii lui Moisil 2012, clasele 11-12 | N/A |
| 1852 | Pietre | Stefan Gheorghe | info-arena 1.0 |      3/5 |
| 1853 | Pietre2 | Clara Ionescu | Grigore Moisil 2010, clasa a 9-a | N/A |
| 1854 | Pietre3 | Sofia Vitelaru | InfoOltenia 2018 - Clasele 7 - 8 | N/A |
| 1855 | Piezisa | George-Alexandru Rapeanu, Ioan Popescu | ONI 2022 Baraj Seniori Ziua 1 | N/A |
| 1856 | Pif | Marcel Dragan | OJI 2019, clasa a 10-a | N/A |
| 1857 | Pikachu | Andrei Grigorean | ONI 2009, clasele 11-12 | N/A |
| 1858 | Pingpong | Csaba Patcas | Lot Resita 2012, Baraj 2 | N/A |
| 1859 | Pioni | Mircea Bogdan Pasoi | Stelele Informaticii 2007-2008, Clasele 11-12 | N/A |
| 1860 | Pioni 2 | Mircea Bogdan Pasoi | .campion 2008, Runda 13 | N/A |
| 1861 | Pipe | Dana Lica | Lot Juniori 2008 - Baraj 4 | N/A |
| 1862 | Piramid | Cosmin Gheorghe | Algoritmiada 2010, Runda 3 | N/A |
| 1863 | Piramida | Rodica Pintea | Lot 2005 Sibiu | N/A |
| 1864 | Pirati | Andrei Grigorean | Algoritmiada 2010, Runda 4 | N/A |
| 1865 | Piruete | Teodor Ionescu | Lot 2017 Baraj 2 | N/A |
| 1866 | Pisi | Eugenie Daniel Posdarascu | Lot Seniori Deva, 2019, baraj 1 | N/A |
| 1867 | Pisica | Alexandru Petrescu | Algoritmiada 2019 Runda Maraton | N/A |
| 1868 | Pisici | Alexandru Petrescu | ad-hoc | N/A |
| 1869 | Pitagora | Zoltan Szabo | Lot Arad 2011 | N/A |
| 1870 | Pitagora2 | Ciprian Marginean | Infoarena Monthly 2012, Runda 7 | N/A |
| 1871 | Pitici | Dan-Ionut Fechete | lot 2006 |      4/5 |
| 1872 | Pitici2 | Csaba Patcas | Grigore Moisil 2008, clasa a 9-a | N/A |
| 1873 | Pitici3 | Emanuela Cerchez | Lot Iasi 2008, Baraj 5 | N/A |
| 1874 | Pitici4 | Paul-Dan Baltescu | Algoritmiada 2010, Runda 1 | N/A |
| 1875 | Pitici5 | Andrei Cristian Lambru | Infoarena Monthly 2014, Runda 4 | N/A |
| 1876 | Pitmutare | Pit-Rada Vasile | Lot 2017 Baraj 3 | N/A |
| 1877 | Pitricele | Ionel-Vasile Pit-Rada | Lot Seniori Alexandria, 2017, baraj 5 | N/A |
| 1878 | Pixeli | Daniela Alexandra Crisan | RAUCoder 2020 | N/A |
| 1879 | Pixels | Catalin-Stefan Tiseanu | RMMS 2011 - Ziua 2 | N/A |
| 1880 | Pixy | Carmen Popescu | Lot Sibiu 2011 - Baraj 1 Juniori | N/A |
| 1881 | Pizza | Andrei Cristian Lambru | Infoarena Monthly 2014, Runda 7 | N/A |
| 1882 | Pkinv | Mugurel Ionut Andreica | Selectie echipe ACM ICPC, UPB 2008 | N/A |
| 1883 | Placare | Radu Visinescu | OJI 2009, clasa a 9-a | N/A |
| 1884 | Placute | Mihai-Alexandru Dusmanu, Teodor Plop | Infoarena Monthly 2012, Runda 11 | N/A |
| 1885 | Plagiat | Mihai Calancea | Algoritmiada 2014, Runda 2 | N/A |
| 1886 | Plaja | Cristina Sichim | ONI 2010, clasa a 9-a | N/A |
| 1887 | Plaja2 | Constantin Galatan | ONI 2018, clasa a 9-a, ziua 1 | N/A |
| 1888 | Plan | Din Folclor | Autumn Warmup 2007, runda 1 | N/A |
| 1889 | Planeta | Andrei Grigorean | Stelele Informaticii 2009, clasele 9-10 | N/A |
| 1890 | Plangaciosi | Alexa Tudose | Junior Challenge 2020 | N/A |
| 1891 | Planificare | Cosmin Gheorghe | Algoritmiada 2012, Runda 2 | N/A |
| 1892 | Plantatie | Mircea Bogdan Pasoi | preONI 2007, Runda 2 |      3/5 |
| 1893 | Plantatii | Eugenie Daniel Posdarascu, Patrick Sava, Preda Armand | Concursul National de Informatica "Adolescent Grigore Moisil" |      1/5 |
| 1894 | Plata minimă fără rest | Tudor Muresan | ad-hoc | N/A |
| 1895 | Play With Strings | Florin Avram | ad-hoc | N/A |
| 1896 | Plicuri | Dragos Oprica | FMI No Stress 4 | N/A |
| 1897 | Plimbare | Din Folclor | Summer Challenge 2 |      4/5 |
| 1898 | Plimbare 2 | Mircea Bogdan Pasoi | .campion 2007-2008, Runda 8 | N/A |
| 1899 | Plimbare3 | Andrei Parvu | Lot Deva 2013 - Baraj 3 Seniori | N/A |
| 1900 | Plopi | Adrian Airinei | Concursul National Urmasii lui Moisil 2011 - Clasele 11 - 12 |      1/5 |