![ ](http://ipsc.ksp.sk/static/ipsc.gif)↵
↵
The next edition of [Internet Problem Solving Contest](http://ipsc.ksp.sk) is here!↵
↵
In case you don't know (yet), IPSC problems come in a great variety, from standard algorithmic ones to problems where you interact with the grader or need to find a specific input.↵
↵
Most problems have an easy input worth 1 point and hard input worth 2 points; otherwise, the scoring is ACM-like, with WAs on easy inputs giving time penalty 10 minutes instead of 20. The input files are available for download and you only upload your outputs (in a similar manner to GCJ, except there's no additional time limit).↵
↵
It's a team competition for teams of three. IPSC 2015 takes place on 20th of June, from [11:00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?month=6&day=20&year=2015&hour=11&min=0&sec=0) and lasts 5 hours. You may register [here](http://ipsc.ksp.sk/2015/register).↵
↵
| Registered teams |↵
|:----------------:|↵
(if you want your team added here, contact me any way you want or list your team's name & members' handles in the comments)↵
↵
| Team name | Member 1 | Member 2 | Member 3 |↵
|:----------------:|:--------------------:|:-----------------------:|:--------------------:|↵
| Zenith | [user:langtrunghieu,2015-05-21] | [user:I_love_Hoang_Yen,2015-05-21] | [user:flashmt,2015-05-21] |↵
| Dig | [user:AliB,2015-05-21] | [user:PrinceOfPersia,2015-05-21] | [user:Swift,2015-05-21] |↵
| Bangladesh Avengers | [user:emo,2015-05-21] | [user:moshiur,2015-05-21] | [user:sohelH,2015-05-21] |↵
| sorry_helli | [user:SaDDaS,2015-05-22] | [user:Silver_Soul,2015-05-22] | [user:I_Love_Yuuki_Asuna,2015-06-05] ([details](http://codeforces.net/blog/entry/18009?#comment-232890)) |↵
| Choker | [user:riad,2015-05-22] | [user:LinKin,2015-05-22] | [user:jehad131,2015-05-22] |↵
| 12.0ngskar | [user:dolphinigle,2015-05-22] | [user:Gyosh,2015-05-22] | [user:fushar,2015-05-22] |↵
| Tmcoteam | [user:Allanur_tkm,2015-05-23] | [user:Bekmyrat,2015-05-23] | [user:_NinjA,2015-05-23] |↵
| The Deterministics | [user:asdoc,2015-05-23] | [user:PowerShell,2015-05-23] | [user:xennygrimmato,2015-05-23] |↵
| 2017 ACM-ICPC absolute winners | [user:T0RRES,2015-05-23] | | |↵
| Team Zabava | [user:radoslav11,2015-05-23] | [user:vanjo9800,2015-05-23] | [user:P_Nyagolov,2015-05-23] |↵
| Panda Po | [user:chrome,2015-06-02] | [user:N.Elibay,2015-06-02] | [user:ErzhaNN,2015-06-02] |↵
| Corridors of Time | [user:flydutchman,2015-06-02] | [user:Riatre,2015-06-02] | [user:this_isssssyy,2015-06-02] |↵
| GD-PSP | [user:Jokser,2015-06-03] | [user:sweiss,2015-06-03] | [user:pvasilyev,2015-06-03] |↵
| Return of Celtic Warriors | [user:Tanaeem,2015-06-03] | [user:sunny,2015-06-03] | [user:dragoon,2015-06-03] |↵
| namelist.insert("দৌড়ের উপর") | [user:enzam,2015-06-03] | [user:VUAcoder,2015-06-03] | [user:wasi.ahmed,2015-06-03] |↵
| Havka-papstvo | [user:Egor,2015-06-03] | [user:pashka,2015-06-03] | [user:Petr,2015-06-03] |↵
| ITMO RaccoonRush | [user:subscriber,2015-06-03] | [user:enot.1.10,2015-06-03] | [user:antonkov,2015-06-03] |↵
| Saratov SU 1 | [user:kuviman,2015-06-05] | [user:IlyaLos,2015-06-05] | [user:dans,2015-06-05] |↵
| Unpretired | [user:ilyakor,2015-06-05] | [user:Jacob,2015-06-05] | [user:gusakov,2015-06-05] |↵
| B-b-b-b-bones! | [user:mysterion,2015-06-05] | [user:knst,2015-06-05] | |↵
| PAPFans | [user:M.Mahdi,2015-06-05] | [user:PAP,2015-06-05] | [user:SeyedParsa,2015-06-05] |↵
| Team Accepted Limit Exceeded | [user:popoffka,2015-06-05] | [user:Alex_2oo8,2015-06-05] | [user:Ingugugus,2015-06-05] |↵
| Masr Islamia (╥‿╥) | [user:khaledkee,2015-06-05] | [user:ahmednaoum,2015-06-05] | Mohamed Al-Jamal |↵
| Whatever | [user:ikbal,2015-06-05] | [user:EMINAYAR,2015-06-05] | [user:enesoncu,2015-06-05] |↵
| CodeFights | [user:---Grigor---,2015-06-11] | [user:aram90,2015-06-11] | [user:armen.tsirunyan,2015-06-11] |↵
| Frozen Heart | [user:Nikitosh,2015-06-11] | [user:Tehnar,2015-06-11] | [user:ComradePetr,2015-06-11] |↵
| Team ꓮꓡꓣꓰꓮꓓꓬ ꓧꓮꓦꓰ ꓓꓳꓠꓰ | [user:HYEA,2015-06-11] | [user:koosaga,2015-06-11] | Jiyong Youn |↵
| Donkey Fly | [user:EKGMA,2015-06-11] | [user:HamidReza_H,2015-06-11] | [user:Rubik_AA,2015-06-11] |↵
| Istrebitel | [user:DARIUS_XIX,2015-06-11] | [user:Suhaylee,2015-06-11] | |↵
| My Igloo Is Melting | [user:Kuroba,2015-06-11] | [user:FatalEagle,2015-06-11] | [user:zxqfl,2015-06-11] |↵
| unemployed, useless dropout & cute woman | [user:vadimmm,2015-06-11] | [user:Rubanenko,2015-06-11] | [user:baba_beda,2015-06-11] |↵
| iThan | [user:chaotic_iak,2015-06-11] | [user:jonathanirvings,2015-06-11] | [user:nathanajah,2015-06-11] |↵
| shockers | [user:Ajay,2015-06-11] | [user:Sundar,2015-06-11] | [user:Karthik,2015-06-11] |↵
| Please explain why havka eto papstvo | [user:OutSide,2015-06-11] | [user:FxF,2015-06-11] | [user:Fcdkbear,2015-06-11] |↵
| 8-HD-720p-YIFY-Ganool.3gp | [user:azaky,2015-06-11] | [user:farisv,2015-06-11] | [user:makanbeling,2015-06-11] |↵
| DivineByCode | [user:amankedia,2015-06-11] | [user:Kanish_The_Vista,2015-06-11] | [user:ace_d_king,2015-06-11] |↵
| kraskevich_team | [user:ILoveCoding,2015-06-11] | | |↵
| 85-85 | [user:farzad.shbfn,2015-06-11] | [user:shamir0xe,2015-06-11] | |↵
| hichzat | [user:bayram98,2015-06-11] | [user:horojyk,2015-06-11] | [user:Kerim.K,2015-06-11] |↵
| Sandor team | [user:SandorGarcia,2015-06-11] | | |↵
| Never Slowdown | [user:reza_h,2015-06-11] | [user:DemoVersion,2015-06-11] | |↵
| Dodgers | [user:vlade087,2015-06-11] | [user:balle,2015-06-11] | [user:deinier,2015-06-11] |↵
| ☺ I can't see plus-plus ☺ | [user:tjandra,2015-06-11] | | |↵
| BajaB | [user:shayanH,2015-06-11] | [user:Amdi,2015-06-11] | [user:AliA,2015-06-11] |↵
| Flawless | [user:fdg,2015-06-11] | [user:Furko,2015-06-11] | [user:mgch,2015-06-11] |↵
| Binam | [user:bijan,2015-06-12] | [user:Nastaran75,2015-06-12] | [user:sPooky,2015-06-12] |↵
| dolphin secret agents | [user:stan,2015-06-12] | [user:acherepanov,2015-06-12] | [user:permin,2015-06-12] |↵
| Chega de saudades | [user:ivanilos,2015-06-12] | | |↵
| sudo set-position rand()%N | [user:fsouza,2015-06-12] | [user:marcoskwkm,2015-06-12] | [user:stefanot,2015-06-12] |↵
| ZER | [user:zholnin,2015-06-12] | [user:Elgun,2015-06-12] | [user:_resul,2015-06-12] |↵
| Vypiem_za_Lubov | [user:Nicolas_Cage,2015-06-12] | [user:Montezuma,2015-06-12] | [user:vip_gevorg,2015-06-12] |↵
| UHv6 | [user:jcg,2015-06-12] | [user:marX,2015-06-12] | |↵
| Korol', mudak, i rzhavaya zapchast' | [user:silap-aliyev,2015-06-12] | [user:bayram,2015-06-12] | [user:osmanuss,2015-06-12] |↵
| SPb SU 8/3 | [user:Dmitry_Egorov,2015-06-12] | [user:PavelKunyavskiy,2015-06-12] | [user:nk.karpov,2015-06-12] |↵
| Abdelkarim | [user:abdelkarim,2015-06-12] | | |↵
| DS & DP^2 | [user:besher,2015-06-17] | [user:Alex7,2015-06-17] | [user:joudzouzou,2015-06-17] |↵
| Alexander Udalov | [user:udalov,2015-06-17] | | |↵
| MooOOoOooOOOOoOooooP | [user:DemiGuo,2015-06-17] | [user:ksun48,2015-06-17] | [user:yummy,2015-06-17] |↵
| ONU_Feuerbach | [user:ONU_V_V_Ivanov,2015-06-17] | [user:Dubzzy,2015-06-17] | [user:illarionovam_onu,2015-06-17] |↵
| j1k7_7 | [user:jaskamalkainth,2015-06-17] | | |↵
| dpsd_team | [user:rajat1603,2015-06-17] | [user:sidhbansal,2015-06-17] | [user:additya1998,2015-06-17] |↵
| Nalin Bhardwaj Member | [user:NibNalin,2015-06-17] | | |↵
| AOI2 | [user:gdisastery,2015-06-17] | [user:fleimgruber,2015-06-17] | |↵
| les apparences sont trompeuses members | [user:safrout,2015-06-17] | [user:KarimElSheikh,2015-06-17] | [user:MedoN11,2015-06-17] |↵
| Primo | [user:Drizlerz,2015-06-17] | [user:zulkan,2015-06-17] | |↵
| bambino | [user:2shraaf,2015-06-17] | [user:badry,2015-06-17] | [user:mohamed.mehany,2015-06-17] |↵
| NHSPC Juniors | [user:ruhan.habib39,2015-06-17] | [user:tasmeemreza,2015-06-17] | [user:rubabredwan,2015-06-17] |↵
| KBTU Tarjan | [user:Azizkhan,2015-06-17] | [user:Madiyar,2015-06-17] | [user:Temirulan,2015-06-17] |↵
| kvark161: | [user:kvark161,2015-06-17] | | |↵
| Dirsa | [user:kristapuciitis,2015-06-17] | [user:sanja,2015-06-17] | Mishutnik |↵
| MSU Tashkent Old Coders | Timur_Sitdikov | SergeyLazarev | helThazar |↵
| Samne Porikkha...Asen Contest Kori | zubaer.kh | amlansaha | Honour_00 |↵
| SPiromanii&Messi | LUN4M0R1P5 | teoionescu | george_stelian |
↵
The next edition of [Internet Problem Solving Contest](http://ipsc.ksp.sk) is here!↵
↵
In case you don't know (yet), IPSC problems come in a great variety, from standard algorithmic ones to problems where you interact with the grader or need to find a specific input.↵
↵
Most problems have an easy input worth 1 point and hard input worth 2 points; otherwise, the scoring is ACM-like, with WAs on easy inputs giving time penalty 10 minutes instead of 20. The input files are available for download and you only upload your outputs (in a similar manner to GCJ, except there's no additional time limit).↵
↵
It's a team competition for teams of three. IPSC 2015 takes place on 20th of June, from [11:00 UTC](https://www.timeanddate.com/worldclock/fixedtime.html?month=6&day=20&year=2015&hour=11&min=0&sec=0) and lasts 5 hours. You may register [here](http://ipsc.ksp.sk/2015/register).↵
↵
| Registered teams |↵
|:----------------:|↵
(if you want your team added here, contact me any way you want or list your team's name & members' handles in the comments)↵
↵
| Team name | Member 1 | Member 2 | Member 3 |↵
|:----------------:|:--------------------:|:-----------------------:|:--------------------:|↵
| Zenith | [user:langtrunghieu,2015-05-21] | [user:I_love_Hoang_Yen,2015-05-21] | [user:flashmt,2015-05-21] |↵
| Dig | [user:AliB,2015-05-21] | [user:PrinceOfPersia,2015-05-21] | [user:Swift,2015-05-21] |↵
| Bangladesh Avengers | [user:emo,2015-05-21] | [user:moshiur,2015-05-21] | [user:sohelH,2015-05-21] |↵
| sorry_helli | [user:SaDDaS,2015-05-22] | [user:Silver_Soul,2015-05-22] | [user:I_Love_Yuuki_Asuna,2015-06-05] ([details](http://codeforces.net/blog/entry/18009?#comment-232890)) |↵
| Choker | [user:riad,2015-05-22] | [user:LinKin,2015-05-22] | [user:jehad131,2015-05-22] |↵
| 12.0ngskar | [user:dolphinigle,2015-05-22] | [user:Gyosh,2015-05-22] | [user:fushar,2015-05-22] |↵
| Tmcoteam | [user:Allanur_tkm,2015-05-23] | [user:Bekmyrat,2015-05-23] | [user:_NinjA,2015-05-23] |↵
| The Deterministics | [user:asdoc,2015-05-23] | [user:PowerShell,2015-05-23] | [user:xennygrimmato,2015-05-23] |↵
| 2017 ACM-ICPC absolute winners | [user:T0RRES,2015-05-23] | | |↵
| Team Zabava | [user:radoslav11,2015-05-23] | [user:vanjo9800,2015-05-23] | [user:P_Nyagolov,2015-05-23] |↵
| Panda Po | [user:chrome,2015-06-02] | [user:N.Elibay,2015-06-02] | [user:ErzhaNN,2015-06-02] |↵
| Corridors of Time | [user:flydutchman,2015-06-02] | [user:Riatre,2015-06-02] | [user:this_isssssyy,2015-06-02] |↵
| GD-PSP | [user:Jokser,2015-06-03] | [user:sweiss,2015-06-03] | [user:pvasilyev,2015-06-03] |↵
| Return of Celtic Warriors | [user:Tanaeem,2015-06-03] | [user:sunny,2015-06-03] | [user:dragoon,2015-06-03] |↵
| namelist.insert("দৌড়ের উপর") | [user:enzam,2015-06-03] | [user:VUAcoder,2015-06-03] | [user:wasi.ahmed,2015-06-03] |↵
| Havka-papstvo | [user:Egor,2015-06-03] | [user:pashka,2015-06-03] | [user:Petr,2015-06-03] |↵
| ITMO RaccoonRush | [user:subscriber,2015-06-03] | [user:enot.1.10,2015-06-03] | [user:antonkov,2015-06-03] |↵
| Saratov SU 1 | [user:kuviman,2015-06-05] | [user:IlyaLos,2015-06-05] | [user:dans,2015-06-05] |↵
| Unpretired | [user:ilyakor,2015-06-05] | [user:Jacob,2015-06-05] | [user:gusakov,2015-06-05] |↵
| B-b-b-b-bones! | [user:mysterion,2015-06-05] | [user:knst,2015-06-05] | |↵
| PAPFans | [user:M.Mahdi,2015-06-05] | [user:PAP,2015-06-05] | [user:SeyedParsa,2015-06-05] |↵
| Team Accepted Limit Exceeded | [user:popoffka,2015-06-05] | [user:Alex_2oo8,2015-06-05] | [user:Ingugugus,2015-06-05] |↵
| Masr Islamia (╥‿╥) | [user:khaledkee,2015-06-05] | [user:ahmednaoum,2015-06-05] | Mohamed Al-Jamal |↵
| Whatever | [user:ikbal,2015-06-05] | [user:EMINAYAR,2015-06-05] | [user:enesoncu,2015-06-05] |↵
| CodeFights | [user:---Grigor---,2015-06-11] | [user:aram90,2015-06-11] | [user:armen.tsirunyan,2015-06-11] |↵
| Frozen Heart | [user:Nikitosh,2015-06-11] | [user:Tehnar,2015-06-11] | [user:ComradePetr,2015-06-11] |↵
| Team ꓮꓡꓣꓰꓮꓓꓬ ꓧꓮꓦꓰ ꓓꓳꓠꓰ | [user:HYEA,2015-06-11] | [user:koosaga,2015-06-11] | Jiyong Youn |↵
| Donkey Fly | [user:EKGMA,2015-06-11] | [user:HamidReza_H,2015-06-11] | [user:Rubik_AA,2015-06-11] |↵
| Istrebitel | [user:DARIUS_XIX,2015-06-11] | [user:Suhaylee,2015-06-11] | |↵
| My Igloo Is Melting | [user:Kuroba,2015-06-11] | [user:FatalEagle,2015-06-11] | [user:zxqfl,2015-06-11] |↵
| unemployed, useless dropout & cute woman | [user:vadimmm,2015-06-11] | [user:Rubanenko,2015-06-11] | [user:baba_beda,2015-06-11] |↵
| iThan | [user:chaotic_iak,2015-06-11] | [user:jonathanirvings,2015-06-11] | [user:nathanajah,2015-06-11] |↵
| shockers | [user:Ajay,2015-06-11] | [user:Sundar,2015-06-11] | [user:Karthik,2015-06-11] |↵
| Please explain why havka eto papstvo | [user:OutSide,2015-06-11] | [user:FxF,2015-06-11] | [user:Fcdkbear,2015-06-11] |↵
| 8-HD-720p-YIFY-Ganool.3gp | [user:azaky,2015-06-11] | [user:farisv,2015-06-11] | [user:makanbeling,2015-06-11] |↵
| DivineByCode | [user:amankedia,2015-06-11] | [user:Kanish_The_Vista,2015-06-11] | [user:ace_d_king,2015-06-11] |↵
| kraskevich_team | [user:ILoveCoding,2015-06-11] | | |↵
| 85-85 | [user:farzad.shbfn,2015-06-11] | [user:shamir0xe,2015-06-11] | |↵
| hichzat | [user:bayram98,2015-06-11] | [user:horojyk,2015-06-11] | [user:Kerim.K,2015-06-11] |↵
| Sandor team | [user:SandorGarcia,2015-06-11] | | |↵
| Never Slowdown | [user:reza_h,2015-06-11] | [user:DemoVersion,2015-06-11] | |↵
| Dodgers | [user:vlade087,2015-06-11] | [user:balle,2015-06-11] | [user:deinier,2015-06-11] |↵
| ☺ I can't see plus-plus ☺ | [user:tjandra,2015-06-11] | | |↵
| BajaB | [user:shayanH,2015-06-11] | [user:Amdi,2015-06-11] | [user:AliA,2015-06-11] |↵
| Flawless | [user:fdg,2015-06-11] | [user:Furko,2015-06-11] | [user:mgch,2015-06-11] |↵
| Binam | [user:bijan,2015-06-12] | [user:Nastaran75,2015-06-12] | [user:sPooky,2015-06-12] |↵
| dolphin secret agents | [user:stan,2015-06-12] | [user:acherepanov,2015-06-12] | [user:permin,2015-06-12] |↵
| Chega de saudades | [user:ivanilos,2015-06-12] | | |↵
| sudo set-position rand()%N | [user:fsouza,2015-06-12] | [user:marcoskwkm,2015-06-12] | [user:stefanot,2015-06-12] |↵
| ZER | [user:zholnin,2015-06-12] | [user:Elgun,2015-06-12] | [user:_resul,2015-06-12] |↵
| Vypiem_za_Lubov | [user:Nicolas_Cage,2015-06-12] | [user:Montezuma,2015-06-12] | [user:vip_gevorg,2015-06-12] |↵
| UHv6 | [user:jcg,2015-06-12] | [user:marX,2015-06-12] | |↵
| Korol', mudak, i rzhavaya zapchast' | [user:silap-aliyev,2015-06-12] | [user:bayram,2015-06-12] | [user:osmanuss,2015-06-12] |↵
| SPb SU 8/3 | [user:Dmitry_Egorov,2015-06-12] | [user:PavelKunyavskiy,2015-06-12] | [user:nk.karpov,2015-06-12] |↵
| Abdelkarim | [user:abdelkarim,2015-06-12] | | |↵
| DS & DP^2 | [user:besher,2015-06-17] | [user:Alex7,2015-06-17] | [user:joudzouzou,2015-06-17] |↵
| Alexander Udalov | [user:udalov,2015-06-17] | | |↵
| MooOOoOooOOOOoOooooP | [user:DemiGuo,2015-06-17] | [user:ksun48,2015-06-17] | [user:yummy,2015-06-17] |↵
| ONU_Feuerbach | [user:ONU_V_V_Ivanov,2015-06-17] | [user:Dubzzy,2015-06-17] | [user:illarionovam_onu,2015-06-17] |↵
| j1k7_7 | [user:jaskamalkainth,2015-06-17] | | |↵
| dpsd_team | [user:rajat1603,2015-06-17] | [user:sidhbansal,2015-06-17] | [user:additya1998,2015-06-17] |↵
| Nalin Bhardwaj Member | [user:NibNalin,2015-06-17] | | |↵
| AOI2 | [user:gdisastery,2015-06-17] | [user:fleimgruber,2015-06-17] | |↵
| les apparences sont trompeuses members | [user:safrout,2015-06-17] | [user:KarimElSheikh,2015-06-17] | [user:MedoN11,2015-06-17] |↵
| Primo | [user:Drizlerz,2015-06-17] | [user:zulkan,2015-06-17] | |↵
| bambino | [user:2shraaf,2015-06-17] | [user:badry,2015-06-17] | [user:mohamed.mehany,2015-06-17] |↵
| NHSPC Juniors | [user:ruhan.habib39,2015-06-17] | [user:tasmeemreza,2015-06-17] | [user:rubabredwan,2015-06-17] |↵
| KBTU Tarjan | [user:Azizkhan,2015-06-17] | [user:Madiyar,2015-06-17] | [user:Temirulan,2015-06-17] |↵
| kvark161: | [user:kvark161,2015-06-17] | | |↵
| Dirsa | [user:kristapuciitis,2015-06-17] | [user:sanja,2015-06-17] | Mishutnik |↵
| MSU Tashkent Old Coders | Timur_Sitdikov | SergeyLazarev | helThazar |↵
| Samne Porikkha...Asen Contest Kori | zubaer.kh | amlansaha | Honour_00 |↵
| SPiromanii&Messi | LUN4M0R1P5 | teoionescu | george_stelian |