FastPrep

Description

Solutions

Submission

Count Faults

Implement a prototype service to automate the detection and replacement of faulty servers to improve the availabity of an application.

There are n servers with its s1, s2,...,s_n, and an array of strings, logs, of size m. Log format is "<server_id> <success/error>", the id of the server and the status of the processed request. If a perticular server id logs an error for three consecutive requests, it is considered faulty and is replaced with a new server with the same id.

Given n and athe array logs, find the number of times a faulty server was replace.

Function Description

Complete the function countFaults in the editor 👉.

countFaults has the following parameter:

int n: the number of servers

String logs[m]: the application logs

Returns

int: the number of times servers were replaced

Example 1:

Input:  n = 2, logs = ["s1 error", "s1 error", "s2 error", "s1 error", "s1 error", "s2 success"]
Output: 1 
Explanation:


s1 was replaced one time. So output should be 1.

Constraints:

1 <= n <= 200

1 <= m <= 2 * 10⁴ (The source image is too blurry. It looked like 10⁴ to me. If you find it incorrect, please let me know! Many thanks in advance 💛💚🧡💖)