多项式除法可以通过模拟手工长除法的过程来实现。下面是一个用C++编写的多项式除法示例代码:
```cpp
include include include using namespace std; // 定义多项式节点结构 struct PolyNode { int coef;// 系数 int exp; // 指数 PolyNode* next; // 指向下一个节点的指针 }; // 创建多项式链表 PolyNode* createPoly(const vector PolyNode* head = nullptr; PolyNode* tail = nullptr; for (const auto& term : poly) { PolyNode* node = new PolyNode{term.second, term.first, nullptr}; if (!head) { head = node; tail = node; } else { tail->next = node; tail = node; } } return head; } // 打印多项式 void printPoly(PolyNode* poly) { bool isFirst = true; while (poly) { if (!isFirst) cout << " + "; isFirst = false; cout << poly->coef << "x^" << poly->exp; poly = poly->next; } cout << endl; } // 多项式除法 void polyDiv(PolyNode* dividend, PolyNode* divisor, PolyNode*& quotient, PolyNode*& remainder) { quotient = nullptr; remainder = dividend; while (remainder && remainder->exp >= divisor->exp) { int coeff = remainder->coef / divisor->coef; int exp = remainder->exp - divisor->exp; PolyNode* node = new PolyNode{coeff, exp, nullptr}; if (!quotient) { quotient = node; } else { PolyNode* temp = quotient; while (temp->next && temp->next->exp > exp) { temp = temp->next; } node->next = temp->next; temp->next = node; } remainder = remainder->next; while (remainder && remainder->exp >= divisor->exp) { remainder->coef -= coeff * divisor->coef; remainder = remainder->next; } } } int main() { // 示例多项式 vector vector // 创建多项式链表 PolyNode* polyDividend = createPoly(dividend); PolyNode* polyDivisor = createPoly(divisor); // 进行多项式除法 PolyNode* quotient, *remainder; polyDiv(polyDividend, polyDivisor, quotient, remainder); // 输出结果 cout << "Quotient: "; printPoly(quotient); cout << "Remainder: "; printPoly(remainder); // 清理内存 delete polyDividend; delete polyDivisor; delete quotient; delete remainder; return 0; } ``` 这段代码首先定义了一个多项式节点的结构`PolyNode`,然后实现了创建多项式链表、打印多项式和多项式除法的函数。在`main`函数中,我们创建了两个多项式链表表示被除数和除数,并调用`polyDiv`函数进行除法运算,最后输出商和余数。 请注意,这个代码示例假设输入的多项式系数为非负整数,并且按照指数递减的顺序给出。在实际应用中,可能需要对输入进行验证和处理。此外,这个代码没有考虑除数为零的情况,实际应用中应该添加相应的错误检查。