it seems to be ok,but giving wa,may be a small bug.but i can't find it.pls help me to find the bug.or suggest me if i misunderstand anything.
problem link->558B - Amr и большой массив my submission->12243341
thanks in advance.
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Consider the array 1 2 1 3 3, the answer is 4 5, but your program will print 1 3.