2021 National Eliminations

The NOI.PH 2021 National Eliminations started on 6:00 PM of 5 February 2021 and finished on 11:59 PM of 14 February 2021. It consisted of fourteen problems of varying difficulty. The round was held online, on Codeforces.

The Participants

Among the 187 registrants, 128 participated in the 222-hour online competition. The participants came from 40 different schools from all over the country. Moreover, each of the main island groups of the Philippines were represented.

Luzon, except NCR (50) | Visayas (12) | Mindanao (22) | NCR (44)

Broken down by region, we have the following chart:

NCR (44) | CAR (16) | I (2) | II (3) | III (3) | IV-A (14) | IV-B (2) | V (10) | VI (1) | VII (8) | VIII (3) | XI (3) | XII (14) | XIII (5)

Broken down by grade level, we have the following chart:

The Problems

The contest problems are accessible at https://codeforces.com/group/Sw3sdIlMPV/contest/315246. The problems remain accessible for practice after the contest.

Scoreboard for NOI.PH 2021 National Eliminations

Rank	CF Name	Score	Penalty	Name	School	Region	Grade	Coach	A	B	C	D	E	F	G	H	I	J	K	L	M	N
1	vincentpikachu20	1323	7:21:36	Vincent Dela Cruz	Valenzuela City School of Mathematics and Science	NCR: National Capital Region	Grade 12		100	100	100	100	100	98	100	100	99	100	90	100	88	48
2	Steve120	1048	9:01:07	Steven Reyes	Saint Jude Catholic School	NCR: National Capital Region	Grade 12		100	100	100	100	100	97	100		95	100	74	20	62
3	daryll-ko	1043	8:23:13	Daryll Carlsten Ko	St. Stephen's High School	NCR: National Capital Region	Grade 12		100	100	100	100	100	17	78	1	95	100	47	100	75	30
4	InternetPerson10	1030	4:22:15	Raphael Dylan Dalida	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 10	Adrian Angeles	100	100	100	100	100	97	100	1	95	100	41	20	62	14
5	ivan24	973	8:06:41	Frederick Ivan Michael Tan	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 11	Adrian Angeles	100	100	100	100	100	97	78		95	100	41		62
6	jlallas384	900	8:04:25	John Lloyd Allas	City of San Jose Del Monte National Science High School	Region III: Central Luzon	Grade 10		100	100	100	100	100	17	55	1	95	79	41	20	62	30
7	qwerty312111	727	7:16:25	Sean Marco Campanilla	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100	100	100	0	78		46	28	47		28
8	Convergence	709	7:04:53	Sheen Santos Capadngan	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100	100	100		0		76	0	41		62	30
9	BlackHat_Hacker	665	5:03:43	John Eric Estrada	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100	100	100		0	0	60		47		28	30
10	pwned	662	8:02:56	Filbert Ephraim Wu	Victory Christian International School	NCR: National Capital Region	Grade 10		100	100	100	100	100		55		60		47		0
11	anonimus07	659	7:18:11	Clyde Lawrence Borrega	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100	100	100				60	0	41		28	30
12	Kantian_Knight	631	8:18:34	Shawn Darren Chua	MGC New Life Christian Academy	NCR: National Capital Region	Grade 11		100	100	100	100	100	0	55	1	28		47
13	chosen_one12	629	8:19:22	John Angelo Oringo	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100	100	77				60		64		28
14	harvsftw	629	9:04:02	Harvey Shawn Chua	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 12	Adrian Angeles	100	100	100	100	100				60		41		28
15	rgm704	593	8:16:52	Enrico Rolando Martinez	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 11	Adrian Angeles	100	100	100	100	100		0		46	0	47	0	0
16	marco_elijah	588	7:00:49	Marco Elijah Arcallana	Kin Yang Academy	Region IV-A: CALABARZON	Grade 9		100	100	100	100	100	0	0		60	0	0	0	28	0
17	ACSF313	584	8:05:53	Aaron John Cacas	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100	100	77				60		47
18	QuantumK9	579	5:20:44	Kian Colin Chua	Saint Jude Catholic School	NCR: National Capital Region	Grade 10		100	100	100	100	77		0	1	46	0	41			14
19	jus102res	570	8:07:23	Nemesio Justine Jr. Torres	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100	100	77				46		47
20	1mbps	564	6:23:59	Lucas Sebastian Khan	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 11		100	100	100	100	77	0	0		46		41		0	0
21	rosso	560	4:03:02	Vaughn Matthew Valle	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100	100	100				60		0
22	lyreloi	560	4:17:17	James Bryan Francisco	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 11		100	100	100	100	100		0		60		0		0
23	ezerss	560	8:02:36	Ezra Magbanua	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100	100	100				60		0		0	0
24	IJBalete	555	6:05:24	Immanuel Josiah Balete	St. Stephen's High School	NCR: National Capital Region	Grade 12		100	100	100	100	100		55			0	0
25	KingMark	542	9:04:11	Mark Nicholas Cagas	Manila Science High School	NCR: National Capital Region	Grade 12	Romer Abella	100	100	100	100	100				42		0
26	mayento	535	8:01:31	Matt Raymond Ayento	Philippine Science High School - Caraga Region Campus	Region XIII: Caraga Region	Grade 10	JESSEVIM GALEON	100	100	100	100	77		0		58	0	0
27	dreeei	529	8:23:16	Jeremy Andrei Ave	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 11		100	100	100	100	77				26	12	0			14
28	what.a.sad	523	4:03:40	Mehriell Ellice Ang	De La Salle University - Taft	NCR: National Capital Region	Grade 11		100	100	100	100	77				46		0			0
29	Edric_Ato	523	5:02:00	Edric Ato	Manila Science High School	NCR: National Capital Region	Grade 12	Romer Abella	100	100	100	100	77				46		0	0
30	Bryce3D	507	8:20:25	Bryce Ainsley Sanchez	Grace Christian College	NCR: National Capital Region	Grade 12		100	100	100	100	100			1	0		6			0
31	thisiszammy	503	1:08:13	Michael Jay Zamoras	Philippine Science High School - Eastern Visayas Campus	Region VIII: Eastern Visayas	Grade 12	Cary Von Alano	100	100	100	100	77				26
32	BQ42	500	7:22:59	Nate Brevin Que	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100	100	100				0
33	engineering_excalibur	493	2:21:37	Gerarld Paul Merales	Philippine Science High School - Eastern Visayas Campus	Region VIII: Eastern Visayas	Grade 12	Cary Von Alano	100	100	100	100	77		0		16
34	TwoManyBees	489	4:04:20	Robert Leung	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Neil Gerson Alvarez	100	100	100	100	77		0		12	0
35	ariiiic	477	0:04:48	Jose Enrique Escober	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100	100	77		0				0
36	ArrowheadCo	477	0:23:46	Malks Mogen David	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 10		100	100	100	100	77		0		0
37	evgenyc	477	8:16:57	Evgeny Cruz	Manila Science High School	NCR: National Capital Region	Grade 10	Romer Abella	100	100	100	100	77		0
38	MilkyW	438	1:01:47	Rafael Sheen Acuña	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100	61	77
39	WBCJ12	420	6:03:37	William Jr. Cortez	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100	100	20
40	simplycomplicated72	406	3:20:44	Seth Andrei Plata	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	100	100	100	29	77		0				0		0	0
41	chelseag0mez	406	5:20:11	Chelsea Lianne Gomez	De La Salle Santiago Zobel School	NCR: National Capital Region	Grade 10		100	100	100	29	77		0		0
42	Rsean	406	8:20:29	Rsean Patrick Gueco	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	100	100	29	77
43	franciellajoan	400	3:13:19	Daniella Joan Francisco	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 12	Sheena Dawn Ferraren	100	100	100	100
44	DippleThree	384	1:21:58	Cassidy Kyler Tan	Davao Christian High School	Region XI: Davao Region	Grade 10		100	100	100	0	77			1			6
45	KianBusico	377	1:05:24	Kian Andrew Busico	Philippine Science High School - Southern Mindanao Campus	Region XI: Davao Region	Grade 11	Bernard Beduya	100	100	100	0	77
46	KurtSumallo	377	1:07:22	Kurt Sumallo	Philippine Science High School CALABARZON Region Campus	Region IV-A: CALABARZON	Grade 11	Marbecel Florida	100	100	100		77		0
47	HeySiri	377	1:17:04	Gabriel Sirilan	Ateneo de Manila Senior High School	NCR: National Capital Region	Grade 12		100	100	100		77
48	Ecooo	377	1:18:01	Arvin Teri Tan	Ateneo de Davao Senior High School	Region XI: Davao Region	Grade 12		100	100	100		77	0			0		0
49	Nemi	377	2:02:31	Francis Benedict Martinez	Philippine Science High School - Eastern Visayas Campus	Region VIII: Eastern Visayas	Grade 12	Cary Von Alano	100	100	100		77
50	Jtibay	377	2:04:37	John Michael Tibay	Philippine Science High School - Caraga Region Campus	Region XIII: Caraga Region	Grade 10	JESSEVIM GALEON	100	100	100		77				0
51	mattferrer	377	2:18:34	Matt Brycen Ferrer	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	100	100		77
52	BatongSisiw	377	3:16:18	Andry Joseph Tumacole	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100	0	77
53	carljoshuaa	377	3:18:09	Carl Joshua Mamuri	Philippine Science High School - Cagayan Valley Campus	Region II: Cagayan Valley	Grade 12	Dianne Rose Bangloy	100	100	100		77		0				0	0
54	fleurdislee	377	6:21:19	Lance Rimando	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Kaye Melina Natividad Alamag	100	100	100		77
55	asvender	377	8:00:05	Alan Vender	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 10	Jimmy Jr Unilongo	100	100	100		77
56	ShiroTenshi	377	9:05:25	Kei Hang Derek Chan	Saint Jude Catholic School	NCR: National Capital Region	Grade 9		100	100	100		77
57	Nicosx	347	5:03:04	Andrei Nicos Ancheta	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	100	100		47						0
58	Khalil_Henry	320	0:02:08	Mark Jaymor De Vera	Cavite National Science High School	Region IV-A: CALABARZON	Grade 12		100	100	100		20
59	NotAlive	320	0:14:00	Nicanor Froilan Pascual	UST Angelicum College	NCR: National Capital Region	Grade 9		100	100	100		20					0	0
60	ldne_edrn	320	0:14:29	Edrian Paul Liao	Philippine Science High School - Cagayan Valley Campus	Region II: Cagayan Valley	Grade 12	Dianne Rose Bangloy	100	100	100		20
61	zenthicc	320	0:18:54	Joseph Duron Jr.	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100		20
62	DemonBlade647	320	0:21:00	Ralph Richard Yanto	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	John Rainer Joaquin	100	100	100		20
63	Ascend	320	1:01:58	Alexandra Brianne Gochian	Saint Jude Catholic School	NCR: National Capital Region	Grade 9		100	100	100	0	20						0
64	kyotikyot	320	3:17:22	Denise Nicole De Vega	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 12	Sheena Dawn Ferraren	100	100	100		20
65	EditUsername14	320	4:18:37	Val Derrick James Alamillo	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 10	Jimmy Jr Unilongo	100	100	100		20
66	JoaquindeCastro	320	6:03:36	Joaquin de Castro	Xavier School San Juan	NCR: National Capital Region	Grade 9		100	100	100	0	20				0
67	gcalanza	320	7:00:43	Gilean Cyrus Alanza	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 10	Jimmy Jr Unilongo	100	100	100		20				0			0
68	HaanakNalaing	320	8:03:29	Ezer Jones Simeon	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Neil Gerson Alvarez	100	100	100		20						0
69	Markovian-Parallax	320	8:19:46	Mario Abrio III	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Neil Gerson Alvarez	100	100	100		20
70	Akkooma	320	9:02:18	Adrien Keith Orencio Macusi	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Neil Gerson Alvarez	100	100	100		20
71	tuatramxo5	320	9:03:08	Uriel Nathan Orpilla	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 11	Adrian Angeles	100	100	100	0	20						0
72	skeletardy	320	9:05:44	Basil Xavier Mendoza	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 11	Mark Lester Canubas	100	100	100		20
73	eefism	309	2:20:36	Francis Isaac Mijares	Philippine Science High School - Caraga Region Campus	Region XIII: Caraga Region	Grade 10	JESSEVIM GALEON	100	100	89		20
74	suzxka	309	5:03:44	Gabriel Antonio Solis	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	100	100	89		20
75	Arvin_Arenas	309	7:22:22	Arvin Arenas	Philippine Science High School CALABARZON Region Campus	Region IV-A: CALABARZON	Grade 11	Marbecel Florida	100	100	89		20
76	TsukishimaKei	309	9:01:44	Lea Angeli Cuadra	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	100	89		20
77	Ausp3x	300	0:03:49	Walsh Nico Adrian Letran	Saint Jude Catholic School	NCR: National Capital Region	Grade 9		100	100	100			0
78	NoodleSushi	300	0:05:03	Kyne Edric Sia	Sacred Heart School - Ateneo de Cebu	Region VII: Central Visayas	Grade 12	Michael David John E. Abello	100	100	100
79	piageaguirre	300	0:21:57	Maria Pilar Isabel Aguirre	Philippine Science High School - Western Visayas Campus	Region VI: Western Visayas	Grade 11	Eisen Ed Briones	100	100	100
80	eRuaro	300	2:20:37	Neil Ruaro	De La Salle University - Taft	NCR: National Capital Region	Grade 11		100	100	100								0
81	Ray01	300	2:21:57	Rheana Mindo	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 12	Sheena Dawn Ferraren	100	100	100
82	Miiiigss	300	2:23:58	Joel Miguel Leysa	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 12	Sheena Dawn Ferraren	100	100	100		0
83	s4ber	300	3:17:34	Zeph Kentaro Hatada	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	100	100
84	lunar_bloom	300	4:08:27	Neomi Mendoza	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 10	Adrian Angeles	100	100	100											0
85	simpleboi2019	300	5:06:28	Issam Wang	Manila Science High School	NCR: National Capital Region	Grade 12	Romer Abella	100	100	100	0
86	jrderez24	300	5:16:47	John Ross Derez	Manila Science High School	NCR: National Capital Region	Grade 12	Romer Abella	100	100	100
87	tim_cheng105	300	5:18:15	Tim Sabien Cheng	Xavier School San Juan	NCR: National Capital Region	Grade 10		100	100	100		0
88	YldrenJess	300	7:16:19	Lydren Jess Ranjo	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 10	Jimmy Jr Unilongo	100	100	100
89	JanDexter	300	8:23:48	Jan Dexter Diaz	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 11	Jimmy Jr Unilongo	100	100	100
90	xdjcb	289	0:03:55	Judd Christian Bañas	Philippine Science High School - Caraga Region Campus	Region XIII: Caraga Region	Grade 10	JESSEVIM GALEON	100	100	89						0
91	x952htaed	289	5:01:45	Shane So	Grace Christian College	NCR: National Capital Region	Grade 12		100	100	89
92	Onee-chan	289	5:05:23	Jose Kenley Dela Peña	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 9	Kaye Melina Natividad Alamag	100	100	89
93	SingleBoi	289	5:17:28	Sean Samuel Bolo	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 9	Graceson Cuyasen	100	100	89
94	paintVeteran	281	9:02:02	Rizza Mae Lim	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	61	100		20						0
95	RaphaelCondor	261	2:09:47	Raphael David Condor	Philippine Science High School - Central Visayas Campus	Region VII: Central Visayas	Grade 12	Mark Lester Canubas	100	61	100		0
96	hololive	250	5:22:07	Cromuel Pangilinan	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	61	89
97	DrMercury	250	6:23:30	Sean Nam	International School of Manila	NCR: National Capital Region	Grade 7		100	61	89
98	NathanBatnag	250	8:23:40	Nathan Earendil Batnag	Ateneo de Manila Junior High School	NCR: National Capital Region	Grade 10	Allan Raymond Santos	100	61	89
99	r3m_	250	9:05:54	Alaric Justin Conlu	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 11	Kaye Melina Natividad Alamag	100	61	89
100	jjaihoee	233	2:05:53	Audrea Arjaemi Tabadero	Lorma Senior High School	Region I: Ilocos Region	Grade 12	Antonette Ongngad	100	33	100
101	JoshuaFigueroa	233	3:09:55	Joshua Figueroa	Polytechnic University of the Philippines	NCR: National Capital Region	Grade 11		100	33	100
102	Imman21	200	0:01:33	Immanuel Umali	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 10	John Rainer Joaquin	100	100
103	NotDream	200	3:16:21	Ahmed Ezra Bigtas	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 11	Tom Secundo	100	0	100
104	AJchuu	189	0:07:56	Adiel Trillo	Philippine Science High School - Caraga Region Campus	Region XIII: Caraga Region	Grade 10	JESSEVIM GALEON	100	0	89
105	LoloDapitan	189	2:01:34	Earl Justin Paje	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	100	0	89
106	aeririelle	189	7:22:00	Anne Gabrielle Sulit	Lyceum of the Philippines University - Batangas	Region IV-A: CALABARZON	Grade 12		100	0	89
107	AdrielGuanzon	189	9:03:25	Adriel Guanzon	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 9	Merch Jay Dollaga	100		89
108	LittleJohn	172	7:03:51	Anthony Carl Olegario	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	50	33	89
109	lwrnc788	161	0:21:02	Dominic Lawrence Bermudez	Philippine Science High School - Main Campus	NCR: National Capital Region	Grade 11	Adrian Angeles	100	61
110	kimisifa	161	1:22:03	Kim Isiah Falogme	Philippine Science High School - MIMAROPA Region Campus	Region IV-B: MIMAROPA	Grade 11	Leonil Suarez	100	61
111	BroThaRage	133	8:07:24	Cedric Allen Mercado	Philippine Science High School - Cagayan Valley Campus	Region II: Cagayan Valley	Grade 12	Dianne Rose Bangloy	100	33
112	apres_moi_le_deluge	120	2:03:24	Patricia Emmanuelle Bansil	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	100	0	0		20
113	.unojayme	100	0:00:36	Uno Jayme	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 9	Merch Jay Dollaga	100
114	Hikariare	100	0:02:04	Thomas Andrei Adarlo	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Mary Jane Buluran	100	0	0		0
115	KRotilla	100	0:03:27	Kristoffer Roge Otilla	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 10	John Rainer Joaquin	100	0
116	Jamir_Usman	100	0:04:03	Jamir Usman	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 9	Merch Jay Dollaga	100	0	0
117	Franzei	100	0:04:38	Audric Franzei Candelaria	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Jeniffer Paje	100	0
118	Michael_Entona	100	1:00:10	Michael Adrian Entona	Lorma Senior High School	Region I: Ilocos Region	Grade 12	Antonette Ongngad	100
119	AbdollahDimaudtang	100	2:20:50	Abdollah Adnan Dimaudtang	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 9	Merch Jay Dollaga	100
120	Lee_am	100	3:16:40	Jose William Solano	Philippine Science High School - SOCCSKSARGEN Region Campus	Region XII: SOCCSKSARGEN	Grade 8	Merch Jay Dollaga	100	0
121	Kirizaya43	100	8:22:11	Jerome Jr Sales	Philippine Science High School - CAR Campus	CAR: Cordillera Administrative Region	Grade 12	Neil Gerson Alvarez	100
122	Jego	50	1:01:28	Juan Diego Soco	Elizabeth Seton School - Cavite	Region IV-A: CALABARZON	Grade 9	Jeniffer Paje	50		0
123	ReSetRandom	0	0:00:00	Rix Gabriel Bausa	Philippine Science High School - Bicol Region Campus	Region V: Bicol Region	Grade 10	Tom Secundo	0
123	HidelwinaTenedero	0	0:00:00	Hidelwina Tenedero	First City Providential College	Region III: Central Luzon	Grade 10		0
123	edridge	0	0:00:00	Eldridge Velmonte	Siena College of San Jose	Region III: Central Luzon	Grade 11		0
123	CharlesQuiroz	0	0:00:00	Charles Wayne Quiroz	Oriental Mindoro National High School	Region IV-B: MIMAROPA	Grade 12	Genriel Geniza	0
123	Namelessguy	0	0:00:00	Paul Leonard Tuason	Lourdes School Quezon City	NCR: National Capital Region	Grade 11		0

NOI.PH 2021 Official Finalists

In no particular order, here is the list of students who qualify for the NOI.PH 2021 Final Round as official finalists.

Allas, John Lloyd, Tridanio (jlallas384)
Grade 10, City of San Jose Del Monte National Science High School
Ang, Mehriell Ellice, Siajuat (what.a.sad)
Grade 11, De La Salle University – Taft
Arcallana, Marco Elijah, Morelos (marco_elijah)
Grade 9, Kin Yang Academy
Ato, Edric, Guinto (Edric_Ato)
Grade 12, Manila Science High School
Ave, Jeremy Andrei, Peralta (dreeei)
Grade 11, Ateneo de Manila Senior High School
Ayento, Matt Raymond (mayento)
Grade 10, Philippine Science High School – Caraga Region Campus
Balete, Immanuel Josiah, Ang (IJBalete)
Grade 12, St. Stephen’s High School
Borrega, Clyde Lawrence, Masagca (anonimus07)
Grade 11, Philippine Science High School – Bicol Region Campus
Cacas, Aaron John, Guese (ACSF313)
Grade 12, Ateneo de Manila Senior High School
Cagas, Mark Nicholas, Labor (KingMark)
Grade 12, Manila Science High School
Campanilla, Sean Marco, Beltran (qwerty312111)
Grade 12, Ateneo de Manila Senior High School
Capadngan, Sheen Santos, D. (Convergence)
Grade 11, Philippine Science High School – Central Visayas Campus
Chua, Harvey Shawn, Ang (harvsftw)
Grade 12, Philippine Science High School – Main Campus
Chua, Kian Colin, Ng (QuantumK9)
Grade 10, Saint Jude Catholic School
Chua, Shawn Darren, Siytiu (Kantian_Knight)
Grade 11, MGC New Life Christian Academy
Dalida, Raphael Dylan, Tanilong (InternetPerson10)
Grade 10, Philippine Science High School – Main Campus
Dela Cruz, Vincent, Uy (vincentpikachu20)
Grade 12, Valenzuela City School of Mathematics and Science
Estrada, John Eric, Pura (BlackHat_Hacker)
Grade 11, Philippine Science High School – Bicol Region Campus
Francisco, James Bryan, Manuyag (lyreloi)
Grade 11, Ateneo de Manila Senior High School
Khan, Lucas Sebastian, Feliciano (1mbps)
Grade 11, Philippine Science High School – Main Campus
Ko, Daryll Carlsten, Lam (daryll-ko)
Grade 12, St. Stephen’s High School
Magbanua, Ezra, Igot (ezerss)
Grade 11, Philippine Science High School – Central Visayas Campus
Martinez, Enrico Rolando, Galarosa (rgm704)
Grade 11, Philippine Science High School – Main Campus
Oringo, John Angelo, Oraa (chosen_one12)
Grade 11, Philippine Science High School – Bicol Region Campus
Reyes, Steven, Ting (Steve120)
Grade 12, Saint Jude Catholic School
Sanchez, Bryce Ainsley, Ang (Bryce3D)
Grade 12, Grace Christian College
Tan, Frederick Ivan Michael, Tiong (ivan24)
Grade 11, Philippine Science High School – Main Campus
Torres, Nemesio Justine Jr., dela Fuente (jus102res)
Grade 12, Ateneo de Manila Senior High School
Valle, Vaughn Matthew, Quiapo (rosso)
Grade 11, Philippine Science High School – Central Visayas Campus
Wu, Filbert Ephraim, S. (pwned)
Grade 10, Victory Christian International School

They will all advance to the Final Round, one step closer to the International Olympiad in Informatics 2021 (IOI 2021) in Singapore!

All codes/submissions have been audited, and all scores/rankings are final.