#include <iostream> #include<string> using namespace std; int main() { int n;int k = 0; while (cin >> n && n != 0) { string a; cout << "Case #" << k+ 1 << ":" << endl; for (int m=0; m < n; m++) { if(m==0)getline(cin, a); getline(cin, a); int b[6] = {0}; for (int i = 0; i < a.size(); i++) { if (a[i] == 'X') { b[0]+= a[i - 2]-'0'; b[1] = a[i + 2] - '0'; } if (a[i] == 'Y') { b[2]+= a[i - 2] - '0'; b[3] = a[i + 2] - '0'; } if (a[i] == 'Z') { b[4]+= a[i - 2] - '0'; b[5] = a[i + 2] - '0'; } } for (int i = 0; i < 6; i=i+2)//求导 { if (b[i + 1] != 0) { b[i] = b[i] * b[i + 1]; b[i + 1]--; } } for (int i = 0; i < 6; i=i+2) {//b[i]为系数 if (b[i]!=0&&b[i+1]!=0) { cout << b[i] << " "; cout << "* "; if (i == 0)cout << "X "; if (i == 2)cout << "Y "; if (i == 4)cout << "Z "; cout << "^ "; cout << b[i+1]; if (i == 0 && (b[i + 2] != 0 || b[i + 4] != 0))cout << " "; if (i == 2 && b[i + 2] != 0)cout << " "; if (i == 0&&(b[i+2]!=0||b[i+4]!=0))cout << "+ "; if(i == 2 && b[i + 2] != 0)cout << "+ "; if(i==4) cout << endl; } if (b[i] != 0 && b[i + 1] == 0) { cout << b[i]; if (i == 0 && b[i + 2] != 0 && b[i + 4] != 0)cout << "+ "; if (i == 2 && b[i + 2] != 0)cout << "+ "; if (i == 4) cout << endl; } if (b[i] == 0 && b[i + 1] == 0) { if (i == 4) cout << endl; } } } k++; } } |
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