Codeforces Round 700 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1480 Codeforces Round 700 (Div. 2) FINISHED False 8100 124557862 Feb. 7, 2021, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 26103 ) A Yet Another String Game PROGRAMMING games greedy strings

B"Homer has two friends Alice and Bob. Both of them are string fans. One day, Alice and Bob decide to play a game on a string s = s_1 s_2 ... s_n of length n consisting of lowercase English letters. They move in turns alternatively and Alice makes the first move. In a move, a player must choose an index i ( 1 <= q i <= q n ) that has not been chosen before, and change s_i to any other lowercase English letter c that c neq s_i . When all indices have been chosen, the game ends. The goal of Alice is to make the final string lexicographically as small as possible, while the goal of Bob is to make the final string lexicographically as large as possible. Both of them are game experts, so they always play games optimally. Homer is not a game expert, so he wonders what the final string will be. A string a is lexicographically smaller than a string b if and only if one of the following holds: Each test contains multiple test cases. The first line contains t ( 1 <= t <= 1000 ) -- the number of test cases. Description of the test cases follows. The only line of each test case contains a single string s ( 1 <= q |s| <= q 50 ) consisting of lowercase English letters. For each test case, print the final string in a single line. In the first test case: Alice makes the first move and must change the only letter to a different one, so she changes it to 'b'. In the second test case: Alice changes the first letter to 'a', then Bob changes the second letter to 'z', Alice changes the third letter to 'a' and then Bob changes the fourth letter to 'z'. In the third test case: Alice changes the first letter to 'b', and then Bob changes the second letter to 'y'. "...

Tutorials

Editorial of Codeforces Round #700

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
106850140 fishcathu. A Feb. 7, 2021, 7:15 p.m. OK GNU C++11 TESTS 61 15 0
106870468 Krystallos A Feb. 8, 2021, 4 a.m. OK GNU C++11 TESTS 61 30 0
106869623 Nash2829 A Feb. 8, 2021, 3:45 a.m. OK GNU C++11 TESTS 61 30 0
106866313 sidiangongyuan A Feb. 8, 2021, 2:42 a.m. OK GNU C++11 TESTS 61 30 0
106864040 tbw831 A Feb. 8, 2021, 1:42 a.m. OK GNU C++11 TESTS 61 30 0
106846907 carolestrella A Feb. 7, 2021, 6:51 p.m. OK GNU C++11 TESTS 61 30 0
106878143 Emanon A Feb. 8, 2021, 5:52 a.m. OK GNU C++11 TESTS 61 31 0
106878068 coder_hk47 A Feb. 8, 2021, 5:51 a.m. OK GNU C++11 TESTS 61 31 0
106878033 Hosea A Feb. 8, 2021, 5:51 a.m. OK GNU C++11 TESTS 61 31 0
106877998 twoSig A Feb. 8, 2021, 5:50 a.m. OK GNU C++11 TESTS 61 31 0
106870930 K_thread A Feb. 8, 2021, 4:08 a.m. OK GNU C++14 TESTS 61 30 0
106878843 Spring A Feb. 8, 2021, 6:01 a.m. OK GNU C++14 TESTS 61 31 0
106878733 neelangshu_nath A Feb. 8, 2021, 6 a.m. OK GNU C++14 TESTS 61 31 0
106878509 Aakriti_tulika A Feb. 8, 2021, 5:57 a.m. OK GNU C++14 TESTS 61 31 0
106878270 u1904123 A Feb. 8, 2021, 5:54 a.m. OK GNU C++14 TESTS 61 31 0
106878132 Christian_Grey A Feb. 8, 2021, 5:52 a.m. OK GNU C++14 TESTS 61 31 0
106877874 MDA_11 A Feb. 8, 2021, 5:49 a.m. OK GNU C++14 TESTS 61 31 0
106877450 mr_nobody0 A Feb. 8, 2021, 5:43 a.m. OK GNU C++14 TESTS 61 31 0
106877091 since1998 A Feb. 8, 2021, 5:39 a.m. OK GNU C++14 TESTS 61 31 0
106876895 rraj0511 A Feb. 8, 2021, 5:36 a.m. OK GNU C++14 TESTS 61 31 0

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