You are given a 2D array events which represents a sequence of events where a child pushes a series of buttons on a keyboard.
Each events[i] = [indexi, timei] indicates that the button at index indexi was pressed at time timei.
time.Return the index of the button that took the longest time to push. If multiple buttons have the same longest time, return the button with the smallest index.
\n
Example 1:
\n\nInput: events = [[1,2],[2,5],[3,9],[1,15]]
\n\nOutput: 1
\n\nExplanation:
\n\n5 - 2 = 3 units of time.9 - 5 = 4 units of time.15 - 9 = 6 units of time.Example 2:
\n\nInput: events = [[10,5],[1,7]]
\n\nOutput: 10
\n\nExplanation:
\n\n7 - 5 = 2 units of time.\n
Constraints:
\n\n1 <= events.length <= 1000events[i] == [indexi, timei]1 <= indexi, timei <= 105events is sorted in increasing order of timei.Compiled with clang 19 using the latest C++ 23 standard, and libstdc++ provided by GCC 14.
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