You are given a 2D integer array ranges and two integers left and right. Each ranges[i] = [starti, endi] represents an inclusive interval between starti and endi.
Return true if each integer in the inclusive range [left, right] is covered by at least one interval in ranges. Return false otherwise.
An integer x is covered by an interval ranges[i] = [starti, endi] if starti <= x <= endi.
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Example 1:
\n\n\nInput: ranges = [[1,2],[3,4],[5,6]], left = 2, right = 5\nOutput: true\nExplanation: Every integer between 2 and 5 is covered:\n- 2 is covered by the first range.\n- 3 and 4 are covered by the second range.\n- 5 is covered by the third range.\n\n\n
Example 2:
\n\n\nInput: ranges = [[1,10],[10,20]], left = 21, right = 21\nOutput: false\nExplanation: 21 is not covered by any range.\n\n\n
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Constraints:
\n\n1 <= ranges.length <= 501 <= starti <= endi <= 501 <= left <= right <= 50Compiled with clang 11 using the latest C++ 20 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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