You are given a positive integer days representing the total number of days an employee is available for work (starting from day 1). You are also given a 2D array meetings of size n where, meetings[i] = [start_i, end_i] represents the starting and ending days of meeting i (inclusive).
Return the count of days when the employee is available for work but no meetings are scheduled.
\n\nNote: The meetings may overlap.
\n\n\n
Example 1:
\n\nInput: days = 10, meetings = [[5,7],[1,3],[9,10]]
\n\nOutput: 2
\n\nExplanation:
\n\nThere is no meeting scheduled on the 4th and 8th days.
\nExample 2:
\n\nInput: days = 5, meetings = [[2,4],[1,3]]
\n\nOutput: 1
\n\nExplanation:
\n\nThere is no meeting scheduled on the 5th day.
\nExample 3:
\n\nInput: days = 6, meetings = [[1,6]]
\n\nOutput: 0
\n\nExplanation:
\n\nMeetings are scheduled for all working days.
\n\n
Constraints:
\n\n1 <= days <= 1091 <= meetings.length <= 105meetings[i].length == 21 <= meetings[i][0] <= meetings[i][1] <= daysCompiled with clang 17 using the latest C++ 20 standard, and libstdc++ provided by GCC 11.
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