1002 A+B for Polynomials (25分)   This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomia…

1009 Product of Polynomials (25分)   This time, you are supposed to find A×B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polyno…

题目 This time, you are supposed to find A×B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N​1​​ a​N​1​​ ​​ N​2​​ a​…

PAT (Advanced Level) Practice 1002 A+B for Polynomials (25 分) 凌宸1642 题目描述: This time, you are supposed to find A+B where A and B are two polynomials. 译:这一次,你要找到 A + B ,其中 A , B 是两个多项式 Input Specification (输入说明): Each input file contains one test case…

This time, you are supposed to find A×B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N​1​​ a​N​1​​​​ N​2​​ a​N​2​…

This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N​1​​ a​N​1​​​​ N​2​​ a​N​2​…

题目 This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N​1​​ a​N​1​​ ​​ N​2​​ a​…

This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial: K N​1​​ a​N​1​​​​ N​2​​ a​N​2​…

题意:给出两个多项式,计算两个多项式的和,并以指数从大到小输出多项式的指数个数,指数和系数. AAAAAccepted code: #include<bits/stdc++.h> using namespace std; ]; int main(){ int k; cin>>k; ; ;i<=k;++i){ int n; cin>>n; double x; cin>>x; a[n]+=x; max_n=max(max_n,n); } cin>&g…

题意: 给出两个多项式,计算两个多项式的积,并以指数从大到小输出多项式的指数个数,指数和系数. trick: 这道题数据未知,导致测试的时候发现不了问题所在. 用set统计非零项时,通过set.size()输出非零项个数,set.count()与否来判断是否输出该项时结果第0个测试点答案错误. 用fabs(mp[i])>=0.05时结果全部正确,因为考虑到保留1位小数所以用这个语句来判断保留小数后是否非零. 问题是当去掉fabs()时采用mp[i]>=0.05结果第0个测试点答案错误. 而不管…