https://app.codility.com/programmers/lessons/10-prime_and_composite_numbers/flags/ Flags coding task - Learn to Code - Codility Find the maximum number of flags that can be set on mountain peaks. app.codility.com 문제 A non-empty array A consisting of N integers is given. A peak is an array element which is larger than its neighbours. More precisely, it is an index P such that 0 < P < N − 1 and A[..