INTERSECTION

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There are two lines of boys and girls. One line consists of 100 boys and another of 100 girls. Given the position of the couples at a and b, give the number of intersection points. Input N – number of couples. N lines follow each having a, b – position of boy and girl in both the lines. Output Number of intersection points. Example Input: 3 1 3 2 4 4 4 Output: 1

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solution.cppC++17

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