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Educational Codeforces Round 190 (Rated for Div. 2)
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Codeforces Edu Round 190 (Div 2) — Solution Discussion

By Shayan

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Contests

#	Contest	Start time	Rank	Solved	Rating change	New rating
93	Codeforces Round 1064 (Div. 2)	Nov/16/2025 17:35	2052	3	-63	1744
92	Codeforces Round 1060 (Div. 2)	Oct/19/2025 17:35	1451	3	-29	1807
91	Educational Codeforces Round 183 (Rated for Div. 2)	Oct/06/2025 17:35	684	4	+35	1836
90	Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)	Oct/03/2025 17:35	1492	4	+28	1801
89	Codeforces Round 1053 (Div. 2)	Sep/24/2025 14:35	550	4	+29	1773
88	Codeforces Round 1049 (Div. 2)	Sep/09/2025 17:35	851	4	+58	1744
87	Codeforces Round 1046 (Div. 2)	Aug/28/2025 17:35	1598	4	-4	1686
86	Codeforces Round 1045 (Div. 2)	Aug/26/2025 17:35	2731	3	-28	1690
85	Codeforces Round 1044 (Div. 2)	Aug/24/2025 17:35	6222	2	-117	1718
84	Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)	Aug/07/2025 17:35	1093	4	+53	1835
83	Codeforces Round 1040 (Div. 2)	Jul/31/2025 17:35	2000	4	-51	1782
82	Codeforces Round 1039 (Div. 2)	Jul/27/2025 17:35	823	5	+21	1833
81	Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)	Jul/19/2025 17:35	1678	3	+22	1812
80	EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)	Jul/06/2025 17:35	832	5	+87	1790
79	Codeforces Round 1035 (Div. 2)	Jul/05/2025 17:35	3189	3	-50	1703
78	Educational Codeforces Round 179 (Rated for Div. 2)	Jun/03/2025 17:35	2934	4	-82	1753
77	Codeforces Round 1028 (Div. 2)	May/31/2025 17:35	576	3	+30	1835
76	Codeforces Round 1024 (Div. 2)	May/11/2025 17:35	217	4	+96	1805
75	Codeforces Round 1023 (Div. 2)	May/05/2025 17:35	846	3	+44	1709
74	Codeforces Round 1022 (Div. 2)	May/01/2025 17:35	1047	3	+46	1665
73	Educational Codeforces Round 178 (Rated for Div. 2)	Apr/28/2025 17:35	3386	4	-67	1619
72	Codeforces Round 1019 (Div. 2)	Apr/21/2025 17:35	1711	3	-8	1686
71	Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)	Apr/05/2025 17:35	2631	4	-24	1694
70	Educational Codeforces Round 177 (Rated for Div. 2)	Apr/03/2025 17:35	4108	3	-88	1718
69	Codeforces Round 1014 (Div. 2)	Mar/29/2025 17:35	993	4	+25	1806
68	Codeforces Round 1011 (Div. 2)	Mar/22/2025 17:35	551	4	+75	1781
67	Educational Codeforces Round 176 (Rated for Div. 2)	Mar/17/2025 17:35	2271	3	-22	1706
66	Codeforces Round 1008 (Div. 2)	Mar/10/2025 17:45	577	4	+67	1728
65	Educational Codeforces Round 174 (Rated for Div. 2)	Feb/18/2025 17:35	2248	3	-17	1661
64	Codeforces Round 1005 (Div. 2)	Feb/16/2025 17:35	2745	3	-36	1678
63	Codeforces Round 1002 (Div. 2)	Feb/02/2025 17:35	3173	3	-53	1714
62	Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)	Jan/26/2025 17:35	800	4	+142	1767
61	Codeforces Round 1000 (Div. 2)	Jan/22/2025 15:05	3018	3	-20	1625
60	IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)	Jan/20/2025 17:35	3478	3	-49	1645
59	Codeforces Round 997 (Div. 2)	Jan/17/2025 17:35	1918	3	-8	1694
58	Codeforces Round 996 (Div. 2)	Jan/12/2025 17:35	878	3	+79	1702
57	Codeforces Round 992 (Div. 2)	Dec/08/2024 17:35	2676	3	-36	1623
56	Educational Codeforces Round 172 (Rated for Div. 2)	Dec/02/2024 17:35	2449	2	-46	1659
55	CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/23/2024 17:35	1759	5	+25	1705
54	Codeforces Round 987 (Div. 2)	Nov/15/2024 15:35	3277	3	-77	1680
53	Codeforces Round 986 (Div. 2)	Nov/10/2024 18:35	449	4	+85	1757
52	Codeforces Round 983 (Div. 2)	Nov/01/2024 17:35	1649	3	+15	1672
51	Educational Codeforces Round 171 (Rated for Div. 2)	Oct/28/2024 17:35	1550	3	+29	1657
50	Codeforces Round 981 (Div. 3)	Oct/24/2024 17:35	811	5	+31	1628	Became Expert xjt01 → xjt01
49	Codeforces Round 979 (Div. 2)	Oct/19/2024 17:05	1514	4	+45	1597
48	Educational Codeforces Round 170 (Rated for Div. 2)	Oct/14/2024 17:35	1935	3	+48	1552
47	Codeforces Round 976 (Div. 2) and Divide By Zero 9.0	Sep/29/2024 18:35	4860	2	-46	1504
46	Codeforces Round 975 (Div. 2)	Sep/27/2024 16:35	4483	2	-64	1550	Became Specialist xjt01 → xjt01
45	Codeforces Round 973 (Div. 2)	Sep/20/2024 17:35	2621	3	-13	1614
44	Codeforces Round 968 (Div. 2)	Aug/25/2024 17:35	1773	4	+32	1627	Became Expert xjt01 → xjt01
43	Educational Codeforces Round 169 (Rated for Div. 2)	Aug/15/2024 17:35	1481	4	+74	1595
42	Codeforces Round 966 (Div. 3)	Aug/13/2024 17:40	664	5	+113	1521
41	Codeforces Round 965 (Div. 2)	Aug/10/2024 17:35	14128	1	-124	1408
40	Codeforces Round 963 (Div. 2)	Aug/04/2024 17:35	3239	3	+10	1532
39	Educational Codeforces Round 168 (Rated for Div. 2)	Jul/30/2024 17:35	4461	3	-12	1522
38	Codeforces Round 962 (Div. 3)	Jul/26/2024 17:35	5158	4	-66	1534	Became Specialist xjt01 → xjt01
37	Codeforces Round 961 (Div. 2)	Jul/23/2024 17:35	1124	3	+79	1600	Became Expert xjt01 → xjt01
36	Codeforces Round 960 (Div. 2)	Jul/20/2024 17:35	2559	3	+25	1521
35	Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)	Jul/18/2024 17:35	8370	2	-114	1496	Became Specialist xjt01 → xjt01
34	Codeforces Round 957 (Div. 3)	Jul/11/2024 17:35	364	6	+111	1610	Became Expert xjt01 → xjt01
33	Codeforces Round 951 (Div. 2)	Jun/06/2024 17:35	4793	3	-30	1499
32	Codeforces Round 950 (Div. 3)	Jun/03/2024 17:35	721	5	+95	1529
31	Educational Codeforces Round 166 (Rated for Div. 2)	May/30/2024 17:35	2348	3	+73	1434	Became Specialist xjt01 → xjt01
30	Codeforces Round 946 (Div. 3)	May/20/2024 17:35	4153	3	-13	1361
29	Codeforces Round 945 (Div. 2)	May/17/2024 17:35	4849	2	-21	1374
28	Codeforces Round 943 (Div. 3)	May/02/2024 17:45	1506	5	+67	1395
27	Codeforces Round 942 (Div. 2)	Apr/30/2024 17:35	6401	2	-74	1328	Became Pupil xjt01 → xjt01
26	Educational Codeforces Round 165 (Rated for Div. 2)	Apr/29/2024 17:35	2689	2	+40	1402	Became Specialist xjt01 → xjt01
25	Codeforces Round 941 (Div. 2)	Apr/27/2024 17:35	2777	3	+24	1362
24	Codeforces Round 940 (Div. 2) and CodeCraft-23	Apr/21/2024 17:35	5467	2	-29	1338
23	Codeforces Round 939 (Div. 2)	Apr/13/2024 17:35	2748	3	+60	1367
22	Codeforces Round 938 (Div. 3)	Apr/08/2024 17:35	4125	4	+29	1307
21	Codeforces Round 937 (Div. 4)	Mar/28/2024 17:45	4466	4	+12	1278
20	Codeforces Round 936 (Div. 2)	Mar/22/2024 17:35	8340	1	-56	1266
19	Educational Codeforces Round 163 (Rated for Div. 2)	Mar/15/2024 17:35	3188	3	+85	1322
18	Codeforces Round 933 (Div. 3)	Mar/11/2024 17:35	5316	4	+29	1237
17	Codeforces Round 932 (Div. 2)	Mar/05/2024 17:35	5595	2	+57	1208	Became Pupil xjt01 → xjt01
16	Codeforces Round 931 (Div. 2)	Mar/01/2024 17:35	8476	1	-29	1151
15	Codeforces Round 930 (Div. 2)	Feb/29/2024 17:35	5512	2	+36	1180
14	Codeforces Round 929 (Div. 3)	Feb/27/2024 17:35	6013	4	+54	1144
13	Educational Codeforces Round 162 (Rated for Div. 2)	Feb/23/2024 17:35	13912	1	-101	1090
12	Codeforces Round 928 (Div. 4)	Feb/19/2024 17:35	2785	4	+90	1191
11	Codeforces Round 927 (Div. 3)	Feb/18/2024 15:05	7863	2	-8	1101
10	Codeforces Round 926 (Div. 2)	Feb/15/2024 17:35	13463	2	-71	1109
9	Codeforces Round 925 (Div. 3)	Feb/13/2024 17:35	7086	3	+20	1180
8	Codeforces Round 924 (Div. 2)	Feb/11/2024 12:35	4025	2	+74	1160
7	Codeforces Round 922 (Div. 2)	Jan/30/2024 17:35	7166	2	+68	1086
6	Codeforces Round 921 (Div. 2)	Jan/27/2024 17:45	13718	1	-17	1018
5	Educational Codeforces Round 161 (Rated for Div. 2)	Jan/18/2024 17:35	10949	1	+89	1035
4	Codeforces Round 920 (Div. 3)	Jan/15/2024 17:35	10481	3	+144	946
3	Codeforces Round 919 (Div. 2)	Jan/13/2024 17:35	13632	1	+172	802
2	Codeforces Round 916 (Div. 3)	Dec/19/2023 17:35	13052	2	+253	630
1	Educational Codeforces Round 159 (Rated for Div. 2)	Dec/03/2023 17:35	9915	1	+377	377	xjt01 → xjt01

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