Mountain Engineering

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A sequence in which the value of elements first increase and then decrease is called Mountain- Sequence. In a valid Mountain-Sequence there should be at least one element in the increasing and at least one element in the decreasing arm. For example, "1 3 5 9 17 12" is a valid Mountain-Sequence having five elements in the increasing arm namely 1, 3, 5, 9 and 17, and 1 element in the decreasing arm

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