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Language: Special Squares
Description There are some points and lines parellel to x-axis or y-axis on the plane. If arbitrary chosen two lines parallel to x-axis and two lines parallel to y-axis, one rectangle, or sometimes a square, will be formed. If a square is formed and there is one or more point in the square or on the side of the square, the square is called a "special square". Please find the number of special squares. Input The 1st line contains three positive integer n Output Output one line containing an integer specifies the number of special squares. The test data ensures that the result is less than 2^31 Sample Input 4 4 3 0 2 4 6 0 2 4 6 1 1 3 3 6 6 Sample Output 8 Source |

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