Problem C

Statement
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C. Anya and 1100time limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWhile rummaging through things in a distant drawer, Anya found a beautiful string $$$s$$$ consisting only of zeros and ones.Now she wants to make it even more beautiful by performing $$$q$$$ operations on it.Each operation is described by two integers $$$i$$$ ($$$1 \le i \le |s|$$$) and $$$v$$$ ($$$v \in \{0, 1\}$$$) and means that the $$$i$$$-th character of the string is assigned the value $$$v$$$ (that is, the assignment $$$s_i = v$$$ is performed).But Anya loves the number $$$1100$$$, so after each query, she asks you to tell her whether the substring "1100" is present in her string (i.e. there exist such $$$1 \le i \le |s| - 3$$$ that $$$s_{i}s_{i + 1}s_{i + 2}s_{i + 3} = \texttt{1100}$$$).InputThe first line contains one integer $$$t$$$ ($$$1 \leq t \leq 10^4$$$) — the number of test cases.The first line of the test case contains the string $$$s$$$ ($$$1 \leq |s| \leq 2 \cdot 10^5$$$), consisting only of the characters "0" and "1". Here $$$|s|$$$ denotes the length of the string $$$s$$$.The next line contains an integer $$$q$$$ ($$$1 \leq q \leq 2 \cdot 10^5$$$) — the number of queries.The following $$$q$$$ lines contain two integers $$$i$$$ ($$$1 \leq i \leq |s|$$$) and $$$v$$$ ($$$v \in \{0, 1\}$$$), describing the query.It is guaranteed that the sum of $$$|s|$$$ across all test cases does not exceed $$$2 \cdot 10^5$$$. It is also guaranteed that the sum of $$$q$$$ across all test cases does not exceed $$$2 \cdot 10^5$$$.OutputFor each query, output "YES", if "1100" is present in Anya's string; otherwise, output "NO".You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive responses.ExampleInput410041 12 02 03 1110000036 17 14 111101041 15 04 15 0010043 11 12 02 1OutputNO
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
NO