Codeforces Round 766 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1627 Codeforces Round 766 (Div. 2) FINISHED False 7200 89565899 Jan. 15, 2022, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 2413 ) E Not Escaping PROGRAMMING data structures dp implementation shortest paths sortings two pointers

B'Major Ram is being chased by his arch enemy Raghav. Ram must reach the top of the building to escape via helicopter. The building, however, is on fire. Ram must choose the optimal path to reach the top of the building to lose the minimum amount of health. The building consists of n floors, each with m rooms each. Let (i, j) represent the j -th room on the i -th floor. Additionally, there are k ladders installed. The i -th ladder allows Ram to travel from (a_i, b_i) to (c_i, d_i) , but not in the other direction. Ram also gains h_i health points if he uses the ladder i . It is guaranteed a_i < c_i for all ladders. If Ram is on the i -th floor, he can move either left or right. Travelling across floors, however, is treacherous. If Ram travels from (i, j) to (i, k) , he loses |j-k| cdot x_i health points. Ram enters the building at (1, 1) while his helicopter is waiting at (n, m) . What is the minimum amount of health Ram loses if he takes the most optimal path? Note this answer may be negative (in which case he gains health). Output "NO ESCAPE" if no matter what path Ram takes, he cannot escape the clutches of Raghav. The first line of input contains t ( 1 <= q t <= q 5 cdot 10^4 ) -- the number of test cases. The first line of each test case consists of 3 integers n, m, k ( 2 <= q n, m <= q 10^5 ; 1 <= q k <= q 10^5 ) -- the number of floors, the number of rooms on each floor and the number of ladders respectively. The second line of a test case consists of n integers x_1, x_2, ... , x_n ( 1 <= q x_i <= q 10^6 ). The next k lines describe the ladders. Ladder i is denoted by a_i, b_i, c_i, d_i, h_i ( 1 <= q a_i < c_i <= q n ; 1 <= q b_i, d_i <= q m ; 1 <= q h_i <= q 10^6 ) -- the rooms it connects and the health points gained from using it. It is guaranteed a_i < c_i '...

Tutorials

Codeforces Round #766 (Div. 2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
142906926 KING_OF_TURTLE E Jan. 16, 2022, 2:16 a.m. OK GNU C++14 TESTS 62 139 12902400
142904991 Tyyyyyy E Jan. 16, 2022, 1:01 a.m. OK GNU C++14 TESTS 62 140 9625600
142885190 buko E Jan. 15, 2022, 5:21 p.m. OK GNU C++14 TESTS 62 140 53862400
142908220 vjudge1 E Jan. 16, 2022, 2:54 a.m. OK GNU C++14 TESTS 62 155 9625600
142888902 dlalswp25 E Jan. 15, 2022, 5:57 p.m. OK GNU C++14 TESTS 62 155 10649600
142884373 Ruki.cf E Jan. 15, 2022, 5:15 p.m. OK GNU C++14 TESTS 62 155 10649600
142903259 CK2021 E Jan. 15, 2022, 11:30 p.m. OK GNU C++14 TESTS 62 156 28876800
142906497 NEFU_DaTieJiang E Jan. 16, 2022, 1:59 a.m. OK GNU C++14 TESTS 62 171 9625600
142876287 gigajet E Jan. 15, 2022, 4:26 p.m. OK GNU C++14 TESTS 62 171 10854400
142908861 E-ray E Jan. 16, 2022, 3:12 a.m. OK GNU C++14 TESTS 62 171 13824000

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