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94/100 C Programs(猜数)

上一篇 / 下一篇 2008-04-08 00:20:11 / 个人分类：C 　

/*【程序94】
题目：时间函数举例4,一个猜数游戏，判断一个人反应快慢。
1.程序分析：
2.程序源代码：*/
#include "time.h"
#include "stdlib.h"
#include "stdio.h"
void main(void)
{
   char c;
   clock_t start, end;
   time_t a, b;
   double var;
   int i, guess;
   srand(time(NULL));
   printf("do you want to play it.('y' or 'n') \n");
loop:
   while((c = getchar()) == 'y')
   {
       i = rand() % 100;
       printf("\nplease input number you guess:\n");
       start = clock();
       a = time(NULL);
       scanf("%d", &guess);
       while(guess != i)
       {
           if(guess > i)
           {
               printf("please input a little smaller.\n");
               scanf("%d", &guess);
           }
           else
           {
               printf("please input a little bigger.\n");
               scanf("%d", &guess);
           }
       }
       end = clock();
       b = time(NULL);
       printf("\1: It took you %6.3f seconds\n", var = (double)(end - start) / 18.2);
       printf("\1: it took you %6.3f seconds\n\n", difftime(b, a));
       if(var < 15)
           printf("\1\1 You are very clever! \1\1\n\n");
       else if(var < 25)
           printf("\1\1 you are normal! \1\1\n\n");
       else
           printf("\1\1 you are stupid! \1\1\n\n");
       printf("\1\1 Congradulations \1\1\n\n");
       printf("The number you guess is %d", i);
   }
   printf("\ndo you want to try it again?(\"yy\".or.\"n\")\n");

    if((c = getchar()) == 'y')
        goto loop;
}

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