四则续

  1 #include <stdio.h>
  2 #include <stdlib.h>
  3 #include <time.h>
  4 #include <iomanip>
  5 #include <iostream>
  6 using namespace std;
  7 
  8 
  9 
 10 int main(void)
 11 {
 12     srand((unsigned)time(NULL)); //本地时间为种子
 13     int a[100];
 14     int b[100];
 15     int c[100];
 16     int num;
 17     int j;
 18     int count;
 19     char choice;
 20     int jiange;
 21     int range;
 22     char zhengfu;
 23 
 24     //printf("please input num for type : ");
 25     //scanf_s("%d", &num);
 26     //printf("please input num for the sum of task : ");
 27     //scanf_s("%d", &count);
 28     //printf("chose have(y) or not(n)  Multiplication and division:");
 29     //scanf_s("%c", &choice);
 30     //printf("please input num for jiange :");
 31     //scanf_s("%d", &jiange);
 32     cout << "输入每行题目数 : ";
 33     cin >> num;
 34     cout << "输入题目数 : ";
 35     cin >> count;
 36     cout << "是否支持乘除（y/n）:";
 37     cin >> choice;
 38     cout << "输入题与题的间隔 :";
 39     cin >> jiange;
 40     cout << "输入生成题目的范围 :";
 41     cin >> range;
 42     cout << "选择加减是否有正负数（y/n） : ";
 43     cin >> zhengfu;
 44 
 45 
 46     for (int i = 0; i < count; i++)
 47     {
 48 
 49         if (zhengfu == ‘n‘)
 50         {
 51             a[i] = rand() % range; //产生随机数
 52             b[i] = rand() % range;
 53             if (choice == ‘y‘)      //选择是否有乘除；
 54             {
 55                 c[i] = rand() % 4; //产生随机符号0到3分别代表四则运算
 56 
 57                 if (i == 0)         //a[0],b[0]的特殊情况；
 58                 {
 59                     printf("%-4d", a[i]);
 60                     switch (c[i])
 61                     {
 62                     case 0:
 63                         printf("+");
 64                         break;
 65                     case 1:
 66                         printf("-");
 67                         break;
 68                     case 2:
 69                         printf("*");
 70                         break;
 71                     case 3:
 72                         printf("/");
 73                         break;
 74                     }
 75                     printf("%4d =", b[i]);
 76                     for (j = 0; j < jiange; j++)
 77                     {
 78                         printf(" ");
 79                     }
 80                 }
 81                 else
 82                 {
 83                     for (int k = 0; k < i; k++)
 84                     {
 85                         if (a[k] == a[i] && b[k] == b[i] && c[k] == c[i])
 86                         {
 87                             i--;
 88                             break;
 89                         }
 90                         else
 91                         {
 92                             if (k == i - 1)  //比较到最后一个数时
 93                             {
 94                                 printf("%-4d", a[i]);
 95                                 switch (c[i])
 96                                 {
 97                                 case 0:
 98                                     printf("+");
 99                                     break;
100                                 case 1:
101                                     printf("-");
102                                     break;
103                                 case 2:
104                                     printf("*");
105                                     break;
106                                 case 3:
107                                     printf("/");
108                                     break;
109                                 }
110                                 printf("%4d =", b[i]);
111                                 for (j = 0; j < jiange; j++)
112                                 {
113                                     printf(" ");
114                                 }
115                             }
116                         }
117                     }
118                 }
119                 if ((i + 1) % num == 0)
120                     printf("\n");
121             }
122             else
123             {
124                 c[i] = rand() % 2; //产生随机符号0到3分别代表四则运算
125 
126                 if (i == 0)
127                 {
128                     printf("%-4d", a[i]);
129                     switch (c[i])
130                     {
131                     case 0:
132                         printf("*");
133                         break;
134                     case 1:
135                         printf("/");
136                         break;
137                     }
138                     printf("%4d =", b[i]);
139                     for (j = 0; j < jiange; j++)
140                     {
141                         printf(" ");
142                     }
143                 }
144                 else
145                 {
146                     for (int k = 0; k < i; k++)
147                     {
148                         if (a[k] == a[i] && b[k] == b[i] && c[k] == c[i])
149                         {
150                             i--;
151                             break;
152                         }
153                         else
154                         {
155                             if (k == i - 1)  //比较到最后一个数时
156                             {
157                                 printf("%-4d", a[i]);
158                                 switch (c[i])
159                                 {
160                                 case 0:
161                                     printf("*");
162                                     break;
163                                 case 1:
164                                     printf("/");
165                                     break;
166                                 }
167                                 printf("%4d =", b[i]);
168                                 for (j = 0; j < jiange; j++)
169                                 {
170                                     printf(" ");
171                                 }
172                             }
173                         }
174                     }
175                 }
176                 if ((i + 1) % num == 0)
177                     printf("\n");
178             }
179         }
180         else
181         {
182             if (choice == ‘y‘)      //选择是否有乘除；
183             {
184                 a[i] = rand() % (2 * range + 1) - range; //产生随机数
185                 b[i] = rand() % (2 * range + 1) - range;
186                 c[i] = rand() % 4; //产生随机符号0到3分别代表四则运算
187 
188                 if (i == 0)         //a[0],b[0]的特殊情况；
189                 {
190                     printf("%-4d", a[i]);
191                     switch (c[i])
192                     {
193                     case 0:
194                         printf("+");
195                         break;
196                     case 1:
197                         printf("-");
198                         break;
199                     case 2:
200                         printf("*");
201                         break;
202                     case 3:
203                         printf("/");
204                         break;
205                     }
206                     printf("%4d =", b[i]);
207                     for (j = 0; j < jiange; j++)
208                     {
209                         printf(" ");
210                     }
211                 }
212                 else
213                 {
214                     for (int k = 0; k < i; k++)
215                     {
216                         if (a[k] == a[i] && b[k] == b[i] && c[k] == c[i])
217                         {
218                             i--;
219                             break;
220                         }
221                         else
222                         {
223                             if (k == i - 1)  //比较到最后一个数时
224                             {
225                                 printf("%-4d", a[i]);
226                                 switch (c[i])
227                                 {
228                                 case 0:
229                                     printf("+");
230                                     break;
231                                 case 1:
232                                     printf("-");
233                                     break;
234                                 case 2:
235                                     printf("*");
236                                     break;
237                                 case 3:
238                                     printf("/");
239                                     break;
240                                 }
241                                 printf("%4d =", b[i]);
242                                 for (j = 0; j < jiange; j++)
243                                 {
244                                     printf(" ");
245                                 }
246                             }
247                         }
248                     }
249                 }
250                 if ((i + 1) % num == 0)
251                     printf("\n");
252             }
253             else
254             {
255                 c[i] = rand() % 2; //产生随机符号0到3分别代表四则运算
256 
257                 if (i == 0)
258                 {
259                     printf("%-4d", a[i]);
260                     switch (c[i])
261                     {
262                     case 0:
263                         printf("*");
264                         break;
265                     case 1:
266                         printf("/");
267                         break;
268                     }
269                     printf("%4d =", b[i]);
270                     for (j = 0; j < jiange; j++)
271                     {
272                         printf(" ");
273                     }
274                 }
275                 else
276                 {
277                     for (int k = 0; k < i; k++)
278                     {
279                         if (a[k] == a[i] && b[k] == b[i] && c[k] == c[i])
280                         {
281                             i--;
282                             break;
283                         }
284                         else
285                         {
286                             if (k == i - 1)  //比较到最后一个数时
287                             {
288                                 printf("%-4d", a[i]);
289                                 switch (c[i])
290                                 {
291                                 case 0:
292                                     printf("*");
293                                     break;
294                                 case 1:
295                                     printf("/");
296                                     break;
297                                 }
298                                 printf("%4d =", b[i]);
299                                 for (j = 0; j < jiange; j++)
300                                 {
301                                     printf(" ");
302                                 }
303                             }
304                         }
305                     }
306                 }
307                 if ((i + 1) % num == 0)
308                     printf("\n");
309             }
310 
311         }
312 
313 
314     }
315     system("pause");    //暂停程序运行；
316     return 0;
317 }