| 051 | Aiacubile | Mircea Popoveniuc, Razvan Salajan | Grigore Moisil 2017, 10 | N/A |
| 052 | Aiacubiti | Alex Cociorva, Razvan Salajan | Grigore Moisil 2017, 11-12 | N/A |
| 053 | Aiacucmmdc | Sebastian Nechita | Grigore Moisil 2017, 9 | N/A |
| 054 | Aiacuhexagoane | Vlad Mihaly | Grigore Moisil 2017, 9 | N/A |
| 055 | Aiacujoc | Mircea Popoveniuc, Razvan Salajan | Grigore Moisil 2017, 11-12 | N/A |
| 056 | Aiacupalindroame | Vlad Potra | Grigore Moisil 2017, 11-12 | N/A |
| 057 | Aiacusarpe | Sergiu Puscas | Grigore Moisil 2017, 10 | N/A |
| 058 | Aiacuxor | Mircea Popoveniuc, Razvan Salajan | Grigore Moisil 2017, 9 | N/A |
| 059 | Aiafarapalindroame | Alex Cociorva | Grigore Moisil 2017, 10 | N/A |
| 060 | Aimin | Mugurel Ionut Andreica | Happy Coding 2007 | N/A |
| 061 | Ajutor | Marius Andrei | ONI 2003 - baraj | N/A |
| 062 | Akanemat | Tamio-Vesa Nakajima | AGM 2019, runda nationala | N/A |
| 063 | Al k-lea termen Fibonacci | Arhiva Educationala | Arhiva Educationala | N/A |
| 064 | Aladdin | Cosmin Silvestru Negruseri | Bursele Agora 2006 |      5/5 |
| 065 | Aladdin2 | Cosmin Silvestru Negruseri | Bursele Agora 2004 |      2/5 |
| 066 | Alambicare | Tamio-Vesa Nakajima | Summer Challenge 2019 | N/A |
| 067 | Albine | Marius Nicoli | Lot Juniori 2010 - Baraj 1 | N/A |
| 068 | Albinuta | Emilian Miron | ONI 2008, clasele 11-12 | N/A |
| 069 | Album | Paul-Dan Baltescu | Concurs Mihai Patrascu 2013 | N/A |
| 070 | Album2 | Violeta Grecea | OJI 2019, clasa a 6-a | N/A |
| 071 | Albume | Sergiu Puscas | Grigore Moisil 2016, Clasele 11-12 | N/A |
| 072 | Alee | Marinel Serban | OJI 2007, Clasa a 10-a | N/A |
| 073 | Alee în cartier | Cristian-Alexandru Botocan | inspirată din FPC 2021 | N/A |
| 074 | Alegeri | Dragos Oprica | ONIS 2014, Runda 3 | N/A |
| 075 | Alge | Dan Grigoriu | OLI 2009, Bucuresti, clasele 11-12 | N/A |
| 076 | Algebra | Mugurel Ionut Andreica | .campion 2003 | N/A |
| 077 | Algebra2 | Daniel Constantin Anghel, Murtaza Alexandru | FMI No Stress 5 | N/A |
| 078 | Algola | Silviu-Ionut Ganceanu | Finala .campion 2005 |      5/5 |
| 079 | Algoritmul Bellman-Ford | Arhiva Educationala | Arhiva Educationala | N/A |
| 080 | Algoritmul lui Dijkstra | Arhiva Educationala | ad-hoc | N/A |
| 081 | Algoritmul lui Euclid | Arhiva Educationala | ad-hoc | N/A |
| 082 | Algoritmul lui Euclid extins | Arhiva Educationala | ad-hoc | N/A |
| 083 | Algoritmul lui Gauss | Arhiva Educationala | Arhiva Educationala | N/A |
| 084 | Alianta | Cosmin Silvestru Negruseri | Algoritmiada 2013, Runda 4 | N/A |
| 085 | Alibaba | Clara Ionescu | Grigore Moisil 2009, clasele 5-8 | N/A |
| 086 | Alice | Dan Popovici | preONI 2002 | N/A |
| 087 | Alice în Țara Minunilor | Cristian-Alexandru Botocan | inspirată din FPC 2021 | N/A |
| 088 | Aliens | Filip Cristian Buruiana | preONI 2008 Runda 1 | N/A |
| 089 | Aliniate | Alexandru Petrescu, Tamio-Vesa Nakajima | Algoritmiada 2019 Runda Finala | N/A |
| 090 | Aliniere | Mihai-Dragos Preda | FMI No Stress 9 | N/A |
| 091 | Alinieri | Ciprian Chesca | OJI 2020, clasa a 10-a | N/A |
| 092 | Alinuta | Din Folclor | Summer Challenge 2007, runda 3 | N/A |
| 093 | Alohomora | Eugenie Daniel Posdarascu | Algoritmiada 2017, Runda 1 | N/A |
| 094 | Alpin | Cristian Cadar | Lista lui Francu |      2/5 |
| 095 | Amat | Eugen Nodea | ONI 2019, clasa a 9-a, ziua 1 | N/A |
| 096 | Amax | Stefanita Fechete | preONI 2002 | N/A |
| 097 | Ambuscada | Adrian Airinei | Algoritmiada 2009, Runda Finala | N/A |
| 098 | Ambuscada2 | Adam Altar-Samuel, Daniela Alexandra Crisan | RAUCoder 2020 | N/A |
| 099 | Amedie | Andrei Ciocan | ONI 2012 - clasa a 10-a | N/A |
| 100 | Amenzi | Adrian Diaconu | Unirea 2007 |      3/5 |