|
||||||||||
InverseTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 130 Accepted Submission(s): 3 Problem Description YY and LMY both love mathematics. One day LMY wrote down an integer 3 and two polynomials andon a piece of paper. YY noticed that 3 is a prime. Besides, he found that f(x) has a degree strictly less than g(x). And all coefficients of the two polynomials are between 0 and 2, inclusively. His most important discovery is, that there is a polynomial , such that Then YY added a restriction: all coefficients of h(x) must be between 0 and 2 inclusively, and its degree must be less than g(x). Finally, he found that the polynomial h(x) with such properties is unique. The property that a polynomial f(x) with all its coefficients between 0 and p-1 inclusively, where p is a prime number, is called that f(x) is in the polynomial ring defined on field Zp. Note that. Such a polynomial ring is called Zp[x]. Then h(x) is called a multiplicative inverse of f(x), defined on the quotient ring Zp[x]/(g(x)). YY wonders if such an inverse always exists and is unique. Input Input contains multiple test cases. For each test case, the first line contains a prime number p. The following line consists of two positive integers n and m (n<m), indicating the degrees of f(x) and g(x). The following line contains n+1 integers, a0, a1¡ an, indicating the coefficients of f(x), i.e.,. It is guaranteed that f(x) is in Zp[x] and an¡Ù0. The following line contains m+1 integers, b0, b1¡ bm, indicating the coefficients of g(x), i.e.,. It is guaranteed that g(x) is in Zp[x] and bm¡Ù0. Input ends with a line where p=0. Output For each test case, if the multiplicative inverse of f(x) (defined on Zp[x]/(g(x))) does not exist, output only one line containing ¡°NO SOLUTION¡±(quotes excluded); if the multiplicative inverse is not unique, output only one line containing ¡°NO UNIQUE SOLUTION¡±(quotes excluded). Otherwise, you should output two lines indicating the unique multiplicative inverse h(x), using the same format as in the input. Sample Input
Sample Output
Hint The variable x in a polynomial can be evaluated as anything satisfying the commutative and the associative laws and having the modular p operation, not only members of Zp. So polynomials x2+x and 0 in Z2[x] are different. Source | ||||||||||
|