Problem D
Triangular Numbers — Problem Statistics

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Submissions	395
Accepted submissions	257
Submission ratio	65.06%
Authors	214
Full solves [?]	210
Full solve Ratio	98.13%

#	User	Runtime	Language	Date
1	Jeremias Borjas Tablante	0.00 s	C++	2025-10-31 16:40:11
2	Elmar Sigmarsson	0.00 s	C++	2025-10-31 16:45:46
3	Baldur Máni Pálmason	0.00 s	C++	2025-10-31 22:54:43

#	User	Runtime	Language	Date
1	Örn Trausti Styff Sveinsson	0.11 s	Java	2025-10-31 21:23:05
2	Thorsteinn kari	0.11 s	Java	2025-10-31 23:45:51
3	Baldur Máni Pálmason	0.15 s	Java	2025-10-31 22:23:51

#	User	Runtime	Language	Date
1	Baldur Máni Pálmason	0.06 s	JavaScript (Node.js)	2025-10-31 23:51:10

#	User	Runtime	Language	Date
1	Bryndís Gunnlaugsdóttir	0.04 s	Python 3	2024-08-29 11:11:44
2	Sigríður Embla Jóhannsdóttir	0.04 s	Python 3	2024-08-29 11:51:49
3	Arnar Máni Steinsen	0.04 s	Python 3	2024-08-29 11:56:55
4	Eyþór Orri Árnason	0.04 s	Python 3	2024-08-29 11:58:13
5	Karl Philip	0.04 s	Python 3	2024-08-29 12:02:08
6	Ragnar Gerald Albertsson	0.04 s	Python 3	2024-08-29 12:10:09
7	herbert oli	0.04 s	Python 3	2024-08-29 12:14:52
8	eyrun inga einarsdottir	0.04 s	Python 3	2024-08-29 12:15:56
9	Helga Sigrún Sigurjónsdóttir	0.04 s	Python 3	2024-08-29 12:20:33
10	Elmar Fossberg Rúnarsson	0.04 s	Python 3	2024-08-29 12:22:36

#	User	Length	Language	Date
1	Elmar Sigmarsson	194	C++	2025-10-31 16:45:46
2	Jeremias Borjas Tablante	254	C++	2025-10-31 16:40:11
3	Baldur Máni Pálmason	261	C++	2025-10-31 22:54:43

#	User	Length	Language	Date
1	Thorsteinn kari	340	Java	2025-10-31 23:45:51
2	Örn Trausti Styff Sveinsson	369	Java	2025-10-31 21:23:05
3	Baldur Máni Pálmason	458	Java	2025-10-31 22:23:51

#	User	Length	Language	Date
1	Baldur Máni Pálmason	441	JavaScript (Node.js)	2025-10-31 23:51:10

#	User	Length	Language	Date
1	Friðrik Valur Bjartsson	59	Python 3	2024-08-29 14:35:02
2	Einar Þór Sigurðsson	62	Python 3	2024-08-29 12:34:29
3	Christophe Leboucher	66	Python 3	2024-09-10 00:39:40
4	Trausti Guðmundarson	66	Python 3	2024-11-09 18:16:01
5	Stefán Ingi Þorsteinsson	67	Python 3	2024-11-05 19:25:48
6	Lárus Ármann Kjartansson	69	Python 3	2024-08-29 12:27:51
7	Alexander Mitch	69	Python 3	2024-08-29 14:09:50
8	Daði Jón Hilmarsson	69	Python 3	2025-09-02 16:46:04
9	Davíd Örvar Elíasson	69	Python 3	2025-09-02 20:19:22
10	Arngrímur Esra Árnason	70	Python 3	2024-08-29 11:39:00

Solution running time distribution