| 2451 | Sufle | Adrian Panaete, Radu Visan | ONI 2017, Baraj | N/A |
| 2452 | Sum | Tiberiu-Lucian Florea | preONI 2006 Runda 3 |      1/5 |
| 2453 | Sum Max | Zoltan Szabo | OJI 2016, clasele 11-12 |      1/5 |
| 2454 | Sum2 | Marius Andrei | Stelele Informaticii 2003, clasele 11-12 | N/A |
| 2455 | Suma | Mugurel Ionut Andreica | Happy Coding 1 |      1/5 |
| 2456 | Suma divizorilor | Mihai Patrascu | ONI 2002 |      3/5 |
| 2457 | Suma si numarul divizorilor | Arhiva Educationala | Arhiva educationala | N/A |
| 2458 | Suma2 | Mugurel Ionut Andreica | preONI 2002 | N/A |
| 2459 | Suma3 | Clara Ionescu, Csaba Patcas | Grigore Moisil 2008, clasa a 9-a | N/A |
| 2460 | Suma4 | Carmen Minca | OJI 2011, clasele 11-12 | N/A |
| 2461 | Suma5 | Razvan Salajan | Infoarena Monthly 2014, Runda 9 | N/A |
| 2462 | Suma6 | Cristian Vintur | Concursul Naţional de Informatică Urmaşii lui Moisil 2017 | N/A |
| 2463 | Sumall | Ciprian Chesca | Lot Sovata 2014 - Baraj 2 Juniori | N/A |
| 2464 | Suman | Mugurel Ionut Andreica | Selectie individuala ACM ICPC, UPB 2009 | N/A |
| 2465 | SumDiv2 | Cosmin-Mihai Tutunaru | Grigore Moisil 2011, Clasa a 10-a | N/A |
| 2466 | Sume | Liviu Ciortea | info-arena 1.0 |      1/5 |
| 2467 | Sume 2 | Mircea Bogdan Pasoi | .campion 2006/2007, Runda 8 |      3/5 |
| 2468 | Sume de subsecvențe | Tudor Muresan | utcn-2021 | N/A |
| 2469 | Sumfact | Din Folclor | Infoarena Monthly 2014, Runda 1 | N/A |
| 2470 | Sumtree | Vlad-Mihai Bogdan | IIOT 2022-23 Runda I | N/A |
| 2471 | Sumzero | Alexandru Petrescu | RMI 2020 Ziua 2 | N/A |
| 2472 | Sunmihai | Stefan Radu, Usurelu Florian Robert | FMI No Stress 9 Warmup | N/A |
| 2473 | Super Mario | Andrei Heidelbacher, Teodor Plop | Infoarena Monthly 2014, Runda 8 | N/A |
| 2474 | Superbec | Alexandru Petrescu | Junior Challenge 2016 |      3/5 |
| 2475 | SuperP | Marius Dumitran | Stelele Informaticii 2005, clasele 9-10 |      2/5 |
| 2476 | Superpoligon | Alexandru Petrescu | Junior Challenge 2018 | N/A |
| 2477 | Supersenzor | Alexandru Petrescu, Bogdan Pop | Junior Challenge 2019 | N/A |
| 2478 | Supersf | Alexandru Mosoi, Silviu-Ionut Ganceanu | Stelele Informaticii 2005, clasele 11-12 |      5/5 |
| 2479 | Superstring | Mugurel Ionut Andreica | Selectie echipe ACM ICPC, UPB 2007 | N/A |
| 2480 | Supersuma | Alexandru Petrescu | IIOT 2019-20 Runda 3 | N/A |
| 2481 | Sushi | Eugenie Daniel Posdarascu | .com 2012 Runda 2 |      2/5 |
| 2482 | Sushi2 | Eugenie Daniel Posdarascu, Vlad Gavrila | ONI 2016, clasele 11-12 | N/A |
| 2483 | Swap | Mugurel Ionut Andreica, Vlad Slavici | Happy Coding 2006 |      4/5 |
| 2484 | Swaps | Paul-Dan Baltescu | Algoritmiada 2012, Runda 3 | N/A |
| 2485 | Swaps2 | Cosmin Silvestru Negruseri | Infoarena Monthly 2012, Runda 3 | N/A |
| 2486 | Switch | Mihai Calancea | Infoarena Monthly 2012, Runda 8 | N/A |
| 2487 | Switch5 | Adrian Panaete | Lot Sovata 2014 Seniori Baraj 2 | N/A |
| 2488 | Sword Art Online | Eugenie Daniel Posdarascu | Algoritmiada 2015 Runda Finala | N/A |
| 2489 | Symmetricgraph2 | Mihai Calancea | Algoritmiada 2016 - Runda 4 - Seniors | N/A |
| 2490 | Tabara | Constantin Galatan | Lot Juniori 2008 - Baraj 3 | N/A |
| 2491 | Tabara2 | Radu Zernoveanu | .com 2009, Runda 1 | N/A |
| 2492 | Tabela | Stefan Gheorghe | info-arena 1.0 |      2/5 |
| 2493 | Tablete | Stefan Istrate | Algoritmiada 2009, Runda 1 | N/A |
| 2494 | Tabletennis | Tamio-Vesa Nakajima | Info(1)cup 2020 | N/A |
| 2495 | Tablite | Bogdan Dumitru | Lista lui Francu | N/A |
| 2496 | Tablou | Alexandru Petrescu | Algoritmiada 2019 Runda PreOJI | N/A |
| 2497 | Taie | Cosmin Gheorghe | Algoritmiada 2013, Runda 1 | N/A |
| 2498 | Taietura | Adrian Budau, Patrick Sava | ONI 2017, clasa a 10-a | N/A |
| 2499 | Tairos | Radu Muntean | OJI 2019, clasele 11-12 | N/A |
| 2500 | Takara | Costin Oncescu | ONI 2019, baraj | N/A |