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Jake and Amy are going to marry soon. They could not decide the frames for the wedding. Since, Amy was busy, she asked Jake to buy the frames. Jake went to a shop but he could only find sticks used to make frames. Since, Jake is tensed, he asked for your help to find out the number of rectangular frames he can buy. There are $N$ sticks in the shop. You are given a sequence of integers $A_1 , A_2

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solution.cppC++17

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