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Matrix Multiplication
Description You are given three n ¡Á n matrices A, B and C. Does the equation A ¡Á B = C hold true? Input The first line of input contains a positive integer n (n ¡Ü 500) followed by the the three matrices A, B and C respectively. Each matrix's description is a block of n ¡Á n integers. It guarantees that the elements of A and B are less than 100 in absolute value and elements of C are less than 10,000,000 in absolute value. Output Output "YES" if the equation holds true, otherwise "NO". Sample Input Sample Output Hint Source |
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