| 2301 | Sir4 | Paul Diac | Concursul National Urmasii lui Moisil 2011 - Clasa a 9-a |      2/5 |
| 2302 | Sir42 | Lucian Bicsi | FMI No Stress 8 | N/A |
| 2303 | Sir5 | Vlad Ionescu | Infoarena Monthly 2012, Runda 11 | N/A |
| 2304 | Sir7 | Mihai Gheorghe | ONIS 2015, Runda 2 | N/A |
| 2305 | Sir8 | Alexandru Cazacu | Lot Sovata 2014 Seniori Baraj 1 | N/A |
| 2306 | Sir9 | Nistor Eugen Mot | Lot Alba Iulia 2004 | N/A |
| 2307 | Sirag | Emanuela Cerchez | Lot Iasi 2008, Baraj 4 | N/A |
| 2308 | Sirag 2 | Catalin-Stefan Tiseanu | ONI 2009, clasele 11-12 | N/A |
| 2309 | Sirbun | Mihai Bunget | ONI 2023, Baraj Seniori, ziua 1 | N/A |
| 2310 | Șiret | Vlad Duta | Infoarena Monthly 2012, Runda 7 | N/A |
| 2311 | Sireturi | Stefan Ciobaca | ONIS 2014, Runda 2 | N/A |
| 2312 | Sirgcdx | Bogdan Pop | Junior Challenge 2018 | N/A |
| 2313 | Sirsort | | ad-hoc | N/A |
| 2314 | Sirul | | ICHB Faza pe scoala 2015 - clasa a 5-a | N/A |
| 2315 | Sirul infinit | Valeriu Motroi | Romanian Collegiate Programming Contest 2019 | N/A |
| 2316 | Sirul2 | Rodica Pintea | OJI 2017, clasa a 10-a | N/A |
| 2317 | Siruri | Alexandru Mosoi | Stelele informaticii 2005, clasele 11-12 |      5/5 |
| 2318 | Siruri 2 | Adrian Diaconu | .campion 2007-2008, runda 5, grupa M | N/A |
| 2319 | Siruri 2-3-monotone | Cristian George Strat | info-arena 1.0 |      3/5 |
| 2320 | Siruri duplicat | Sebastian Pirtoaca | Romanian Collegiate Programming Contest 2019 | N/A |
| 2321 | Siruri3 | Adrian Budau | ONI 2018, clasa a 10-a, ziua 1 | N/A |
| 2322 | Siruri4 | | ad-hoc | N/A |
| 2323 | Sistem | Mugurel Ionut Andreica | ONI 2002 |      3/5 |
| 2324 | Sistem2 | Mihai Stroe | Happy Coding 2007 | N/A |
| 2325 | Sistem3 | Adrian Vladu | Algoritmiada 2014, Runda 1 | N/A |
| 2326 | Slide | Eugenie Daniel Posdarascu | Algoritmiada 2017 Runda 2 | N/A |
| 2327 | Sliding Window | Vlad Duta | Algoritmiada 2014, Runda 3 | N/A |
| 2328 | Smart | Constantin Galatan | Lot Arad 2011 | N/A |
| 2329 | Smax | Paul Diac | Finala ONIS 2016 | N/A |
| 2330 | Smen | Bogdan Alexandru Stoica | Winter Challange, Runda 01, clasele 9-10 |      4/5 |
| 2331 | Smexp | Mugurel Ionut Andreica | ONIS 2014, Runda Finala | N/A |
| 2332 | Smin | Suzana Galatan | Lot Juniori 2009 - Baraj 4 | N/A |
| 2333 | Smooth | Mihai Calancea | Algoritmiada 2017 Runda 2 | N/A |
| 2334 | Smooth2 | Mihai Calancea | Algoritmiada 2018 Runda PreOJI | N/A |
| 2335 | Sms | Vlad Gavrila | Lot Vaslui 2014 Seniori Baraj 4 | N/A |
| 2336 | Snake | Mihai Calancea | FMI No Stress 8 | N/A |
| 2337 | Snooker | Vlad Gavrila | Junior Challenge 2012 | N/A |
| 2338 | Snowball | Maria Pandele | FMI No Stress 2017 | N/A |
| 2339 | Snpid | Mugurel Ionut Andreica | Lot Resița 2012 - Baraj 2 Seniori | N/A |
| 2340 | Sobo | Silviu-Ionut Ganceanu | Concurs de incalzire 2004 |      2/5 |
| 2341 | Soc | Mugurel Ionut Andreica | Lot 2003 |      5/5 |
| 2342 | Soc 2 | Mugurel Ionut Andreica | lot 2006 |      5/5 |
| 2343 | Socks | Mihai Calancea | ACM-ICPC Faza Nationala 2017 | N/A |
| 2344 | Sokoban | Mihai Calancea | Finala ONIS 2016 | N/A |
| 2345 | Soldati | Mugurel Ionut Andreica | Stelele Informaticii 2005, clasele 9-10 |      4/5 |
| 2346 | Soldiers | Andrei Constantinescu | Lot Seniori Dorohoi 2019 - Baraj 1 | N/A |
| 2347 | Something | Mihai Calancea | FMI No Stress 5 | N/A |
| 2348 | Șoricei | Ciprian Oprisa | ad-hoc | N/A |
| 2349 | Sormin | | ad-hoc | N/A |
| 2350 | Sort | Adrian Nita, Maria Nita | ONI 2007, clasa 8 | N/A |