二柱子升級版
阿新 • • 發佈：2018-11-01
inter 隨機生成 是否 main def 需要 lai 打印 lag
#include<iostream> #include<time.h> #include<stdlib.h> #include<stdio.h> #include<string> #include<fstream> #include<iomanip> #include<cmath> #define random(x) (rand()%x) using namespace std; /*選擇打印方式*/ void Output(int sf) { if (sf == 1)//保存文檔 { ofstream outfile("formula.txt", ios::out); if (!outfile) { cout << "Open error!!" << endl; exit(1); } outfile << "----------------歡迎！小學生四則運算答題系統:-D----------------" << endl; outfile.close(); } } /*判斷輸入0.1的是否輸入正確*/ int Istrue_input(intmnu01) { while (1) { if (mnu01 != 0 && mnu01 != 1) { cout << "輸入有誤，請重新輸入（請輸入0或1）:" << endl; cin >> mnu01; } else break; } return mnu01; } /*生成一個某範圍內的隨機數（正負都有）*/ int Creat_random(int r1, int r2) {int r, shu; r = r2 - r1; shu = r1 + rand() % r; return shu; } /*生成一個隨機運算符*/ string Create_oper(int lai) { srand((int)time(0)); string sign; int Num_sym, Sign_num; if (lai == 0)//加減 Num_sym = 2; else if (lai == 1)//加減乘除 Num_sym = 4; Sign_num = rand() % Num_sym;//生成隨機的數字代表運算符 switch (Sign_num) { case(0) : sign = ‘+‘; break; case(1) : sign = ‘-‘; break; case(2) : sign = ‘*‘; break; case(3) : sign = ‘/‘; break; } return sign; } /*判斷整數正負並取相反數*/ int Opp_zf(int a) { if (a < 0) a = -a; return a; } /*把int類型轉換為string類型*/ string Int_str(int shu) { char zhuan[100]; string str,zuo="(",you=")"; str=itoa(shu, zhuan, 10); if (shu < 0) str = zuo + str + you; return str; } /*生成一個(某範圍)真分數*/ void Creat_fen(int r1, int r2, string &fenshu, double &zhi) { int i, r = r2 - r1, up, down, s; bool flag; string xian = "/", fu = "-", zuo = "(", you = ")"; string zhuan1, zhuan2; loop:do { flag = false;//不能定義全局變量！！ up = r1 + rand() % r; up = Opp_zf(up); down = r1 + rand() % r; down = Opp_zf(down); } while ((up >= down) || (down == 0) || (up == 0));//分子≥分母 or 分母=0 or 分子=0 重新生成 for (i = 2; i <= up; i++) { if (up%i == 0 && down%i == 0) { flag = true;//有公約數 break; } } if (flag == true) { goto loop; } else { zhi = (double)up / (double)down; zhuan1 = Int_str(up);//up/down都是正數不會再加一層括號 zhuan2 = Int_str(down); s = rand() % 2; switch (s) { //正分數 case(0) : fenshu = zuo + zhuan1 + xian + zhuan2 + you; break; //負分數 case(1) : fenshu = zuo + fu + zhuan1 + xian + zhuan2 + you; zhi = -zhi; break; } } } void Have_kuohao(int r1, int r2, string &formula,double &zhi) { srand((int)time(0)); int op,op1, op2; int yn, qh; string symbol1,symbol2; string zhuan,zhuan1, zhuan2; string jia = "+", jian = "-", cheng = "*", chu = "/",zuo="(",you=")"; zhi = (double)Creat_random(r1, r2); op1 = Creat_random(r1, r2); op2 = Creat_random(r1, r2); op = Creat_random(r1, r2);//假設op2做分母不能為0 while (1) { if (op == 0) op = Creat_random(r1, r2); else break; } zhuan1 = Int_str(zhi); zhuan2 = Int_str(op); symbol1 = Create_oper(1); if (symbol1 == "+") { zhi = (double)op1 + (double)op2; formula = zhuan1 + jia + zhuan2; yn = rand() % 2; switch (yn) { //外面不加括號 case(0) : break; //外面加括號 case(1) : { formula = zuo + formula + you; qh = rand() % 2; symbol2 = Create_oper(1); switch (qh) { //加到前面 case(0) : { formula = symbol2 + formula; op = Creat_random(r1, r2); zhuan = Int_str(op); if (symbol2 == "+") { zhi = (double)op + zhi; formula = zhuan + jia + formula; } else if (symbol2 == "-") { zhi = (double)op - zhi; formula = zhuan + jian + formula; } else if (symbol2 == "*") { zhi = (double)op * zhi; formula = zhuan + cheng + formula; } else if (symbol2 == "/") { if (zhi == 0)//防止出現隨機生成的除號後面的值為0； break; else { zhi = (double)op / zhi; formula = zhuan + chu + formula; } } break; } //加到後面 case(1) : { formula = formula + symbol2; op = Creat_random(r1, r2);//防止後面隨機產生除號，分母為0 while (1) { if (op == 0) op = Creat_random(r1, r2); else break; } zhuan = Int_str(op); if (symbol2 == "+") { zhi = zhi + (double)op; formula = formula + jia + zhuan; } else if (symbol2 == "-") { zhi = zhi - (double)op; formula = formula + jian + zhuan; } else if (symbol2 == "*") { zhi = zhi * (double)op; formula = formula + cheng + zhuan; } else if (symbol2 == "/") { zhi = zhi / (double)op; formula = formula + chu + zhuan; } break; } } break; } } } else if (symbol1 == "-") { zhi = (double)op1 - (double)op2; formula = zhuan1 + jian + zhuan2; } else if (symbol1 == "*") { zhi = (double)op1 * (double)op2; formula = zhuan1 + cheng + zhuan2; } else if (symbol1 == "/") { zhi = (double)op1 / (double)op2; formula = zhuan1 + chu + zhuan2; } } /*含有真分數*/ void Have_fenshu(int LL, int r1, int r2, string &formula, double &zhi, int jj) { srand((int)time(0)); string F1, F2, symbol, zhuan; double Z1, Z2;//值 int inter, type; inter = Creat_random(r1, r2);//整數 zhuan = Int_str(inter); Creat_fen(r1, r2, F1, Z1);//分數1 Creat_fen(r1, r2, F2, Z2);//分數2 symbol = Create_oper(LL);//符號 type = rand() % 3;//類型 if (jj == 0)//加減沒有負數 { inter = Opp_zf(inter); zhuan = Int_str(inter); while (1) { if (Z1 <0) Creat_fen(r1, r2, F1, Z1); else break; } while (1) { if (Z2 <0) Creat_fen(r1, r2, F2, Z2); else break; } } switch (type) { //op1分數 case(0) : formula = F1 + symbol + zhuan; if (symbol == "+") zhi = Z1 + (double)inter; else if (symbol == "-") { if (jj == 0) break; else zhi = Z1 - (double)inter; } else if (symbol == "*") zhi = Z1 * (double)inter; else if (symbol == "/") { if (inter != 0) break; else zhi = Z1 / (double)inter; } break; //op2分數 case(1) : formula = zhuan + symbol + F1; if (symbol == "+") zhi = (double)inter + Z1; else if (symbol == "-") zhi = (double)inter - Z1; else if (symbol == "*") zhi = (double)inter * Z1; else if (symbol == "/") { if (Z1 != 0) zhi = (double)inter / Z1; else break; } break; //全分數 case(2) : formula = F1 + symbol + F2; if (symbol == "+") zhi = Z1 + Z2; else if (symbol == "-") { if ((jj == 0) && (Z1 < Z2)) break; else zhi = Z1 - Z2; } else if (symbol == "*") zhi = Z1 * Z2; else if (symbol == "/") { if (Z1 != 0) zhi = Z1 / Z2; else break; } break; } } /*不含有真分數*/ void Only_integer(int LL, int r1, int r2, string &formula, double &zhi,int jj,int cc) { srand((int)time(0)); int op1, op2; string symbol,zhuan1,zhuan2; op1 = Creat_random(r1, r2);//整數1 op2 = Creat_random(r1, r2);//整數2 symbol = Create_oper(LL);//符號 if (jj == 0)//加減不含負號 { op1 = Opp_zf(op1); op2 = Opp_zf(op2); if ((symbol == "-") && (op1 < op2)) { int temp; temp = op1; op1 = op2; op2 = temp; } } if ((cc == 0) && (symbol == "/"))//除法不含余數（去除負號計算的情況） { while (1) { op1 = Opp_zf(op1); op2 = Opp_zf(op2); if (op1 % op2 != 0)//有余數，重新生成 { op1 = Creat_random(r1, r2); op2 = Creat_random(r1, r2); } else break; } } zhuan1 = Int_str(op1); zhuan2 = Int_str(op2); formula = zhuan1 + symbol + zhuan2; if (symbol == "+") zhi = op1 + op2; else if (symbol == "-") zhi = op1 - op2; else if (symbol == "*") zhi = op1*op2; else if (symbol == "/") zhi = op1 / op2; } void main() { ofstream outfile("formula.txt", ios::out); if (!outfile) { cout << "open error!" << endl; exit(1); } outfile << "----------------歡迎！小學生四則運算答題系統:-D----------------" << endl; int i,j,N, R1, R2; int SF, KH, FS, Lei,JJ,CC,count=0; string question="";//生成的問題 double Zhi, answer; int fenzi, fenmu; bool repeat = false; cout << "----------------歡迎！小學生四則運算答題系統:-D----------------"<<endl; /*選擇題目範圍和數量*/ cout << "您想為孩子定制什麽範圍的題目呢？（可含有負數 && 上限≥下限）：" << endl; cout << "下限："; cin >> R1; cout << "上限："; cin >> R2; while (1)//是否輸入合法 { if (R2 < R1) { cout << "輸入的範圍不合理，請重新輸入(上限≥下限):" << endl; cout << "下限："; cin >> R1; cout << "上限："; cin >> R2; } else break; } cout << "訂制多少道題呢？請輸入個數：" << endl; cout << "(友情提示：您不要為孩子出太多的題目(最多1000道)！謝謝合作！)" << endl; cin >> N; while (1)//是否輸入合法 { if (N<=0||N>1000) { cout << "輸入的題目數量不合理，請重新輸入:" << endl; cin >> N; } else break; } /*選擇打印方式*/ cout << "您是否需要保存文檔？（0、不需要 1、需要）" << endl; cin >> SF; SF=Istrue_input(SF);//是否輸入合法 Output(SF); cout << "*********下面請按照孩子的學習程度選擇題目的難度！！*********"<<endl; /*是否含有括號*/ cout << "是否練習帶有括號的難度運算？（0、不需要 1、需要）"; cin >> KH; KH=Istrue_input(KH);//是否輸入合法 if (KH == 1)//含括號 { for (i = 1; i <= N; i++) { string Formula = ""; double Zhi; Have_kuohao(R1, R2,Formula,Zhi); } } //不含括號 else if (KH == 0) { /*加減運算或者四則運算*/ cout << "請選擇：0、只進行加減運算？ 1、進行四則運算？"; cin >> Lei; Lei=Istrue_input(Lei);//是否輸入合法 cout << "加減運算中是否有負數？（0、沒有 1、有）"; cin >> JJ; JJ = Istrue_input(JJ); if (Lei == 1)//乘除 { cout << "除法中是否出現余數？（0、沒有 1、有）"; cin >> CC; CC = Istrue_input(CC); } /*是否含有真分數*/ cout << "題目中是否含有真分數？（0、不需要 1、需要）"; cin >> FS; Istrue_input(FS);//是否輸入合法 cout << N << "道題目如下：" << endl; if (SF == 1)//文件輸出 { outfile << N << "道題目如下：" << endl; } string ku[10000] ; for (i = 1; i <= N; i++) { if (FS == 0)//全整數 Only_integer(Lei, R1, R2, question, Zhi, JJ, CC); else if (FS == 1)//含真分數 Have_fenshu(Lei, R1, R2, question, Zhi, JJ); ku[i] = question; for (j = 0; j <i; j++) { if (ku[j] == ku[i]) { i = i - 1; repeat = true;//重復 break; } } if (!repeat)//不重復 { /*Is_rept(i,str);*/ cout << i << "、 " << question << " = " << endl; if (SF == 1)//文件輸出 { outfile << i << "、 " << question << " = " << Zhi << endl; } if ((Zhi - (int)Zhi)< 1E-7 && (Zhi - (int)Zhi)> -(1E-7))//可認為它是整數 { cin >> answer; } else { cout << " 分子："; cin >> fenzi; cout << " 分母："; cin >> fenmu; answer = (double)fenzi / (double)fenmu; } if ((answer - Zhi) < 1E-7 && (answer - Zhi) > -(1E-7)) { cout << " √" << endl; count++; } else { cout << " ×" << endl; cout << "答案是：" << Zhi << endl; } } } cout << "您的孩子一共答對了" << count << "道題目！！ 恭喜！！" << endl; if (SF == 1)//文件輸出 { outfile << "您的孩子一共答對了" << count << "道題目！！ 恭喜！！" << endl; } cout << "答錯的" << N - count << "道題目請分析原因並改正~~ 加油！！" << endl; if (SF == 1)//文件輸出 { outfile << "答錯的" << N - count << "道題目請分析原因並改正~~ 加油！！" << endl; } } outfile.close(); }
二柱子升級版