1 /*
2 邮件:xuejineng2016@163.com
3 2020年5月5日
4 这个题目重点考核浮点数比较大小的问题,头有点大。
5 */
6 #include <stdio.h>
7 #include <math.h>
8 #define EPS 1e-6
9 int main(void)
10 {
11 int n;
12 double height, weight;
13 double std_weight;
14 double t1,t2;
15 int i;
16
17 scanf("%d", &n);
18 for (i = 0; i < n; i++) {
19 scanf("%lf %lf", &height, &weight);
20 //标准体重
21 std_weight = (height - 100) * 0.9;
22 //将实际体重换算成公斤
23 weight = weight / 2;
24 //用这两个临时变量,是避免表达式写的太长了
25 t1 = fabs(weight - std_weight);
26 t2 = std_weight * 0.1;
27
28 if (t1 < t2 && fabs(t1 - t2) > EPS) {
29 printf("You are wan mei!\n");
30 }
31 //大约等于
32 if (weight > std_weight * 1.1 || fabs(weight - std_weight * 1.1) < EPS)
33 {
34 printf("You are tai pang le!\n");
35 }
36 //小于等于
37 if (weight < std_weight * 0.9 || fabs(weight - std_weight * 0.9) < EPS)
38 {
39 printf("You are tai shou le!\n");
40 }
41 }
42
43 return 0;
44 }