Contests - Codeforces

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Codeforces Round 1123 (Div. 2)
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Codeforces Round 1123 Solution Discussion

By aryanc403

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Contests

#	Contest	Start time	Rank	Solved	Rating change	New rating
143	Codeforces Round 1102 (Div. 2)	Jun/07/2026 17:35	6276	3	-39	1372	Became Pupil FreenCKup → FreenCKup
142	Codeforces Round 1098 (Div. 2)	May/16/2026 17:35	8135	2	-88	1411
141	Codeforces Round 1096 (Div. 3)	Apr/30/2026 17:35	480	6	+102	1499	Became Specialist FreenCKup → FreenCKup
140	Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)	Apr/25/2026 17:35	3454	2	-5	1397	Became Pupil FreenCKup → FreenCKup
139	Codeforces Round 1087 (Div. 2)	Mar/21/2026 17:35	3702	3	+12	1402	Became Specialist FreenCKup → FreenCKup
138	Codeforces Round 1080 (Div. 3)	Feb/15/2026 17:45	1663	5	+74	1390
137	Codeforces Round 1078 (Div. 2)	Feb/08/2026 12:05	11065	1	-113	1316	Became Pupil FreenCKup → FreenCKup
136	Hello 2026	Jan/07/2026 17:35	3914	3	+44	1429	Became Specialist FreenCKup → FreenCKup
135	Codeforces Round 1067 (Div. 2)	Nov/29/2025 17:35	8622	1	-110	1385	Became Pupil FreenCKup → FreenCKup
134	Codeforces Round 1066 (Div. 1 + Div. 2)	Nov/23/2025 12:35	2900	3	-3	1495
133	Codeforces Round 1064 (Div. 2)	Nov/16/2025 17:35	4534	3	-73	1498
132	Educational Codeforces Round 184 (Rated for Div. 2)	Nov/14/2025 17:35	1188	4	+87	1571
131	Codeforces Round 1050 (Div. 4)	Sep/13/2025 17:35	422	6	+99	1484	Became Specialist FreenCKup → FreenCKup
130	Codeforces Round 1031 (Div. 2)	Jun/15/2025 12:05	2621	2	+27	1385
129	Codeforces Round 1029 (Div. 3)	Jun/08/2025 17:35	10869	2	-95	1358	Became Pupil FreenCKup → FreenCKup
128	Codeforces Round 1028 (Div. 2)	May/31/2025 17:35	4473	2	-14	1453
127	Codeforces Round 1027 (Div. 3)	May/26/2025 17:35	836	5	+99	1467	Became Specialist FreenCKup → FreenCKup
126	Codeforces Round 1026 (Div. 2)	May/24/2025 17:35	6831	2	-36	1368	Became Pupil FreenCKup → FreenCKup
125	Codeforces Round 1025 (Div. 2)	May/17/2025 17:35	11202	1	-128	1404
124	Codeforces Round 1022 (Div. 2)	May/01/2025 17:35	1228	3	+82	1532
123	Educational Codeforces Round 178 (Rated for Div. 2)	Apr/28/2025 17:35	1979	4	+55	1450	Became Specialist FreenCKup → FreenCKup
122	Codeforces Round 1020 (Div. 3)	Apr/24/2025 17:35	3645	3	-15	1395	Became Pupil FreenCKup → FreenCKup
121	Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)	Apr/19/2025 17:35	6411	2	-47	1410
120	Codeforces Round 1016 (Div. 3)	Apr/08/2025 17:35	2038	5	+27	1457
119	Codeforces Round 1014 (Div. 2)	Mar/29/2025 17:35	4127	3	+4	1430
118	Codeforces Round 1005 (Div. 2)	Feb/16/2025 17:35	6188	2	-45	1426
117	Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)	Nov/30/2024 17:35	4395	2	-40	1471
116	CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/23/2024 17:35	3406	3	-23	1511
115	Codeforces Round 982 (Div. 2)	Oct/26/2024 17:35	572	4	+156	1534	Became Specialist FreenCKup → FreenCKup
114	Codeforces Round 974 (Div. 3)	Sep/21/2024 17:45	8481	3	-75	1378	Became Pupil FreenCKup → FreenCKup
113	Codeforces Round 972 (Div. 2)	Sep/14/2024 17:35	2465	3	+61	1453	Became Specialist FreenCKup → FreenCKup
112	Educational Codeforces Round 167 (Rated for Div. 2)	Jun/27/2024 17:35	1546	3	+137	1392
111	Codeforces Round 955 (Div. 2, with prizes from NEAR!)	Jun/25/2024 17:35	6351	2	+1	1255
110	Codeforces Round 953 (Div. 2)	Jun/16/2024 12:05	5993	2	-28	1254
109	Codeforces Round 952 (Div. 4)	Jun/11/2024 17:35	7410	4	-50	1282
108	Codeforces Global Round 26	Jun/09/2024 17:35	6356	2	-48	1332
107	Codeforces Round 951 (Div. 2)	Jun/06/2024 17:35	9499	2	-75	1380	Became Pupil FreenCKup → FreenCKup
106	Educational Codeforces Round 166 (Rated for Div. 2)	May/30/2024 17:35	6068	2	-47	1455
105	Codeforces Round 947 (Div. 1 + Div. 2)	May/25/2024 17:35	6624	2	-99	1502	Became Specialist FreenCKup → FreenCKup
104	Codeforces Round 946 (Div. 3)	May/20/2024 17:35	771	4	+41	1601	Became Expert FreenCKup → FreenCKup
103	Codeforces Round 943 (Div. 3)	May/02/2024 17:45	580	5	+78	1560
102	Codeforces Round 942 (Div. 2)	Apr/30/2024 17:35	2351	4	+8	1482
101	Educational Codeforces Round 165 (Rated for Div. 2)	Apr/29/2024 17:35	2778	2	+8	1474
100	Codeforces Round 941 (Div. 2)	Apr/27/2024 17:35	1946	3	+27	1466
99	Educational Codeforces Round 164 (Rated for Div. 2)	Apr/12/2024 17:35	2357	3	+68	1439	Became Specialist FreenCKup → FreenCKup
98	Codeforces Round 938 (Div. 3)	Apr/08/2024 17:35	1571	4	+95	1371
97	Codeforces Global Round 25	Apr/06/2024 17:35	10455	0	-149	1276	Became Pupil FreenCKup → FreenCKup
96	CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)	Mar/30/2024 17:35	7911	1	-119	1425
95	think-cell Round 1	Feb/17/2024 17:35	4090	2	-51	1544
94	Codeforces Round 923 (Div. 3)	Feb/06/2024 17:45	880	5	+51	1595
93	Codeforces Round 922 (Div. 2)	Jan/30/2024 17:35	2105	3	+38	1544
92	Pinely Round 3 (Div. 1 + Div. 2)	Dec/23/2023 17:35	2683	3	+23	1506
91	Codeforces Round 916 (Div. 3)	Dec/19/2023 17:35	1041	6	+57	1483
90	Codeforces Round 912 (Div. 2)	Nov/30/2023 19:35	2609	2	-24	1426
89	CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)	Nov/25/2023 17:50	4406	2	-61	1450
88	Codeforces Round 903 (Div. 3)	Oct/12/2023 17:35	2142	4	-14	1511
87	Codeforces Round 900 (Div. 3)	Sep/26/2023 17:35	822	5	+70	1525
86	Educational Codeforces Round 155 (Rated for Div. 2)	Sep/24/2023 17:35	6584	2	-77	1455
85	Codeforces Round 895 (Div. 3)	Sep/07/2023 17:35	2942	4	-38	1532
84	Educational Codeforces Round 154 (Rated for Div. 2)	Aug/31/2023 17:35	2503	3	0	1570
83	Pinely Round 2 (Div. 1 + Div. 2)	Aug/30/2023 17:35	1255	4	+124	1570
82	Codeforces Round 894 (Div. 3)	Aug/24/2023 17:35	2036	4	+29	1446
81	CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)	Jun/24/2023 17:05	3444	3	+8	1417
80	Codeforces Round 880 (Div. 2)	Jun/18/2023 17:35	5986	1	-85	1409
79	Codeforces Round 876 (Div. 2)	Jun/03/2023 17:35	1027	3	+88	1494
78	Educational Codeforces Round 148 (Rated for Div. 2)	May/12/2023 17:35	1884	3	+62	1406	Became Specialist FreenCKup → FreenCKup
77	Codeforces Round 871 (Div. 4)	May/06/2023 17:35	1672	6	+30	1344
76	Codeforces Round 869 (Div. 2)	Apr/29/2023 17:35	2330	2	+22	1314
75	Educational Codeforces Round 147 (Rated for Div. 2)	Apr/20/2023 17:35	7592	1	-114	1292	Became Pupil FreenCKup → FreenCKup
74	Codeforces Round 863 (Div. 3)	Apr/04/2023 17:35	6805	2	-79	1406
73	CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!)	Mar/31/2023 17:35	2477	3	+35	1485
72	Codeforces Round 852 (Div. 2)	Feb/12/2023 11:35	4450	2	-71	1450
71	Educational Codeforces Round 142 (Rated for Div. 2)	Jan/24/2023 17:35	1081	4	+83	1521
70	Codeforces Round 843 (Div. 2)	Jan/10/2023 14:15	5142	2	-82	1438
69	Good Bye 2022: 2023 is NEAR	Dec/30/2022 17:35	7923	2	-92	1520	Became Specialist FreenCKup → FreenCKup
68	Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT	Dec/19/2022 17:35	252	3	+194	1612	Became Expert FreenCKup → FreenCKup
67	Educational Codeforces Round 140 (Rated for Div. 2)	Dec/16/2022 17:35	3416	2	+2	1418
66	Codeforces Global Round 24	Nov/26/2022 17:05	1960	3	+61	1416	Became Specialist FreenCKup → FreenCKup
65	Codeforces Round 836 (Div. 2)	Nov/25/2022 18:35	3567	2	-8	1355
64	Codeforces Round 833 (Div. 2)	Nov/12/2022 17:35	2729	2	+23	1363
63	Codeforces Round 830 (Div. 2)	Oct/23/2022 13:05	2215	2	+27	1340
62	Codeforces Round 825 (Div. 2)	Oct/10/2022 17:35	4811	2	-16	1313
61	Dytechlab Cup 2022	Oct/07/2022 17:35	4358	1	-57	1329
60	Codeforces Round 821 (Div. 2)	Sep/19/2022 17:35	3135	3	+9	1386
59	Codeforces Round 820 (Div. 3)	Sep/12/2022 17:35	5159	3	-51	1377	Became Pupil FreenCKup → FreenCKup
58	Codeforces Round 816 (Div. 2)	Aug/20/2022 17:35	3289	2	+1	1428
57	Codeforces Round 815 (Div. 2)	Aug/18/2022 16:35	4518	2	-55	1427
56	Codeforces Round 814 (Div. 2)	Aug/16/2022 17:35	992	3	+105	1482	Became Specialist FreenCKup → FreenCKup
55	Codeforces Round 813 (Div. 2)	Aug/13/2022 17:35	4524	3	-3	1377
54	Educational Codeforces Round 132 (Rated for Div. 2)	Jul/21/2022 17:35	2806	2	+42	1380
53	Codeforces Round 809 (Div. 2)	Jul/18/2022 17:35	8591	1	-96	1338	Became Pupil FreenCKup → FreenCKup
52	Codeforces Round 808 (Div. 2)	Jul/16/2022 17:35	4079	2	-23	1434
51	Codeforces Round 807 (Div. 2)	Jul/15/2022 16:35	2045	3	+47	1457
50	Codeforces Round 805 (Div. 3)	Jul/10/2022 17:35	2589	4	+1	1410
49	Educational Codeforces Round 131 (Rated for Div. 2)	Jul/08/2022 17:35	4987	2	-39	1409
48	Codeforces Round 804 (Div. 2)	Jul/04/2022 17:35	3679	2	-14	1448
47	Codeforces Round 803 (Div. 2)	Jun/28/2022 17:35	2930	3	+4	1462
46	Codeforces Round 801 (Div. 2) and EPIC Institute of Technology Round	Jun/18/2022 17:35	2465	2	+16	1458
45	Codeforces Round 800 (Div. 2)	Jun/16/2022 17:35	1742	3	+59	1442	Became Specialist FreenCKup → FreenCKup
44	Codeforces Round 796 (Div. 2)	Jun/03/2022 17:35	6167	2	-67	1383	Became Pupil FreenCKup → FreenCKup
43	CodeCraft-22 and Codeforces Round 795 (Div. 2)	May/31/2022 17:35	1248	3	+101	1450	Became Specialist FreenCKup → FreenCKup
42	Codeforces Round 794 (Div. 2)	May/25/2022 20:35	1770	3	+50	1349
41	Educational Codeforces Round 129 (Rated for Div. 2)	May/23/2022 17:35	2630	3	+78	1299
40	Codeforces Round 793 (Div. 2)	May/22/2022 17:35	3550	3	+60	1221	Became Pupil FreenCKup → FreenCKup
39	Codeforces Round 792 (Div. 1 + Div. 2)	May/19/2022 17:35	4205	2	+85	1161
38	Codeforces Round 790 (Div. 4)	May/10/2022 17:45	11566	3	-80	1076
37	Codeforces Round 789 (Div. 2)	May/08/2022 17:35	3228	2	+73	1156
36	Codeforces Round 788 (Div. 2)	May/06/2022 17:35	5220	1	0	1083
35	Codeforces Round 787 (Div. 3)	May/05/2022 17:35	9524	1	-67	1083
34	Codeforces Round 785 (Div. 2)	Apr/30/2022 17:35	3479	2	+73	1150
33	Codeforces Global Round 20	Apr/23/2022 17:05	6308	2	-39	1077
32	Codeforces Round 783 (Div. 2)	Apr/19/2022 17:35	4759	2	+16	1116
31	Codeforces Round 782 (Div. 2)	Apr/17/2022 17:35	6340	0	-116	1100	Became Newbie FreenCKup → FreenCKup
30	Educational Codeforces Round 124 (Rated for Div. 2)	Mar/10/2022 17:35	4011	2	+45	1216	Became Pupil FreenCKup → FreenCKup
29	Codeforces Round 776 (Div. 3)	Mar/08/2022 17:35	3227	3	+71	1171
28	Codeforces Round 774 (Div. 2)	Mar/04/2022 18:35	5083	2	+40	1100
27	Codeforces Round 770 (Div. 2)	Feb/06/2022 17:35	8829	1	-19	1060
26	Educational Codeforces Round 122 (Rated for Div. 2)	Jan/31/2022 17:35	14444	0	-129	1079	Became Newbie FreenCKup → FreenCKup
25	Codeforces Round 769 (Div. 2)	Jan/30/2022 17:35	12683	1	-102	1208
24	Codeforces Round 768 (Div. 2)	Jan/27/2022 17:35	965	3	+216	1310	Became Pupil FreenCKup → FreenCKup
23	Codeforces Round 764 (Div. 3)	Jan/10/2022 17:35	13381	1	-81	1094
22	Good Bye 2021: 2022 is NEAR	Dec/29/2021 18:35	9035	1	-49	1175	Became Newbie FreenCKup → FreenCKup
21	Codeforces Global Round 18	Dec/24/2021 17:35	6581	1	-40	1224
20	Codeforces Round 762 (Div. 3)	Dec/20/2021 17:35	7334	2	-74	1264
19	Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)	Nov/28/2021 17:35	3672	2	-15	1338
18	Codeforces Round 756 (Div. 3)	Nov/25/2021 17:35	6596	2	-91	1353	Became Pupil FreenCKup → FreenCKup
17	Codeforces Round 754 (Div. 2)	Nov/12/2021 17:35	1766	3	+56	1444	Became Specialist FreenCKup → FreenCKup
16	Codeforces Round 752 (Div. 2)	Oct/30/2021 17:35	2025	3	+49	1388
15	Educational Codeforces Round 116 (Rated for Div. 2)	Oct/29/2021 17:35	1608	3	+129	1339
14	Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)	Oct/17/2021 14:05	2912	2	+87	1210	Became Pupil FreenCKup → FreenCKup
13	Codeforces Round 748 (Div. 3)	Oct/13/2021 17:35	4272	4	+44	1123
12	Codeforces Round 746 (Div. 2)	Oct/03/2021 17:35	5645	1	+19	1079
11	Codeforces Round 744 (Div. 3)	Sep/28/2021 17:35	6887	2	+11	1060
10	Educational Codeforces Round 114 (Rated for Div. 2)	Sep/20/2021 17:35	7502	1	-16	1049
9	Codeforces Global Round 16	Sep/12/2021 17:35	9643	1	-86	1065
8	Codeforces Round 742 (Div. 2)	Sep/05/2021 17:35	5369	2	+33	1151
7	Educational Codeforces Round 110 (Rated for Div. 2)	Jun/04/2021 17:35	8909	2	-16	1118
6	Codeforces Round 719 (Div. 3)	May/05/2021 17:35	9620	2	+5	1134
5	Educational Codeforces Round 108 (Rated for Div. 2)	Apr/29/2021 17:35	8652	2	+48	1129
4	Codeforces Round 710 (Div. 3)	Mar/25/2021 17:35	3316	3	+179	1081
3	Educational Codeforces Round 106 (Rated for Div. 2)	Mar/18/2021 17:50	5537	2	+238	902
2	Educational Codeforces Round 97 (Rated for Div. 2)	Oct/27/2020 17:35	8506	1	+255	664
1	Codeforces Round 677 (Div. 3)	Oct/20/2020 17:35	8462	3	+409	409	FreenCKup → FreenCKup

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