Codeforces Round 924 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1928 Codeforces Round 924 (Div. 2) FINISHED False 7200 24179099 Feb. 11, 2024, 9:35 a.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 244 ) F Digital Patterns PROGRAMMING combinatorics data structures implementation math

B'Anya is engaged in needlework. Today she decided to knit a scarf from semi-transparent threads. Each thread is characterized by a single integer -- the transparency coefficient. The scarf is made according to the following scheme: horizontal threads with transparency coefficients a_1, a_2, ldots, a_n and vertical threads with transparency coefficients b_1, b_2, ldots, b_m are selected. Then they are interwoven as shown in the picture below, forming a piece of fabric of size n x m , consisting of exactly nm nodes: After the interweaving tightens and there are no gaps between the threads, each node formed by a horizontal thread with number i and a vertical thread with number j will turn into a cell, which we will denote as (i, j) . Cell (i, j) will have a transparency coefficient of a_i + b_j . The interestingness of the resulting scarf will be the number of its sub-squares ^{ dagger} in which there are no pairs of neighboring ^{ dagger dagger} cells with the same transparency coefficients. Anya has not yet decided which threads to use for the scarf, so you will also be given q queries to increase/decrease the coefficients for the threads on some ranges. After each query of which you need to output the interestingness of the resulting scarf. ^{ dagger} A sub-square of a piece of fabric is defined as the set of all its cells (i, j) , such that x_0 <= i <= x_0 + d and y_0 <= j <= y_0 + d for some integers x_0 , y_0 , and d ( 1 <= x_0 <= n - d , 1 <= y_0 <= m - d , d ge 0 ). ^{ dagger dagger} . Cells (i_1, j_1) and (i_2, j_2) are neighboring if and only if |i_1 - i_2| + |j_1 - j_2| = 1 . The first line contains three integers n , m , and q ( 1 <= n, m <= 3 cdot 10^5 , 0 <= q <= 3 cdot 10^5 ) -- the number of horizontal threads, the number of vertical threads, and the numb'...

Tutorials

Codeforces Round 924 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
245865011 Kilani F Feb. 11, 2024, 1:34 p.m. OK GNU C++17 TESTS 51 998 34508800
245898384 theygottoseeme F Feb. 11, 2024, 5:37 p.m. OK GNU C++17 TESTS 51 1170 34201600
245896668 mlxon F Feb. 11, 2024, 5:23 p.m. OK GNU C++17 TESTS 51 1170 34201600
245914421 anuraag0507 F Feb. 11, 2024, 8:11 p.m. OK GNU C++17 TESTS 51 1715 45875200
245935375 N_z__ F Feb. 12, 2024, 3:53 a.m. OK GNU C++17 (64) TESTS 51 499 56320000
245873439 KellyWLJ F Feb. 11, 2024, 2:38 p.m. OK GNU C++17 (64) TESTS 51 545 55398400
245854822 chappy1 F Feb. 11, 2024, 12:16 p.m. OK GNU C++17 (64) TESTS 50 654 36454400
245884286 xianghe F Feb. 11, 2024, 3:51 p.m. OK GNU C++17 (64) TESTS 51 1029 61337600
245900094 beiyuli F Feb. 11, 2024, 5:50 p.m. OK GNU C++17 (64) TESTS 51 1388 98611200
245933691 PEIMUDA F Feb. 12, 2024, 3:19 a.m. OK GNU C++17 (64) TESTS 51 1435 38502400
245921033 rainboy F Feb. 11, 2024, 9:51 p.m. OK GNU C++17 (64) TESTS 51 1497 103833600
245928370 lichenghan F Feb. 12, 2024, 1 a.m. OK GNU C++17 (64) TESTS 51 1559 43315200
245935569 N_z__ F Feb. 12, 2024, 3:56 a.m. OK GNU C++17 (64) TESTS 51 1590 62566400
245860391 complexor F Feb. 11, 2024, 1:01 p.m. OK GNU C++17 (64) TESTS 51 1621 132300800
245935472 N_z__ F Feb. 12, 2024, 3:54 a.m. OK GNU C++20 (64) TESTS 51 514 62668800
245850904 paula F Feb. 11, 2024, 11:52 a.m. OK GNU C++20 (64) TESTS 50 623 45363200
245931081 DiegoGarcia F Feb. 12, 2024, 2:17 a.m. OK GNU C++20 (64) TESTS 51 655 40652800
245941870 jiangly F Feb. 12, 2024, 5:43 a.m. OK GNU C++20 (64) TESTS 51 716 38502400
245874863 A_G F Feb. 11, 2024, 2:48 p.m. OK GNU C++20 (64) TESTS 51 717 38502400
245901400 saigumma F Feb. 11, 2024, 6:01 p.m. OK GNU C++20 (64) TESTS 51 733 38502400
245919423 amirhoseinfar1385 F Feb. 11, 2024, 9:23 p.m. OK GNU C++20 (64) TESTS 51 748 57753600
245871005 Xueyi F Feb. 11, 2024, 2:19 p.m. OK GNU C++20 (64) TESTS 51 764 40960000
245901139 MridulAhi F Feb. 11, 2024, 5:59 p.m. OK GNU C++20 (64) TESTS 51 810 67379200
245893029 ashu_1491981 F Feb. 11, 2024, 4:54 p.m. OK GNU C++20 (64) TESTS 51 857 61337600

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