*結構-05. 有理數均值，結構-05有理數均值

*結構-05. 有理數均值，結構-05有理數均值

 1 /*
 2  * Main.c
 3  * F5-結構-05. 有理數均值
 4  *  Created on: 2014年8月26日
 5  *      Author: Boomkeeper
 6  *********部分通過*浮點錯誤******
 7  */
 8 
 9 #include <stdio.h>
10 /**
11  * 有理數結構體
12  */
13 struct rational {
14     int numerator;
15     int denominator;
16 };
17 /**
18  * 最大公約數
19  */
20 int greatCommonDivisor(int m, int n) {
21     int i;
22     for (i = (m < n ? m : n); i > 1; i--) {
23         if (m % i == 0 && n % i == 0)
24             break;
25     }
26     return i;
27 }
28 
29 int main(void) {
30 
31     int n; //題目中的N
32     struct rational num[101];
33     struct rational result;
34     int i;
35 
36     scanf("%d", &n);
37     getchar();
38 
39     for (i = 0; i < n; i++) {
40         scanf("%d/%d", &num[i].numerator, &num[i].denominator);
41     }
42 
43     result.numerator = num[0].numerator;
44     result.denominator = num[0].denominator;
45 
46     //通分求和
47     for (i = 1; i < n; i++) {
48         result.numerator = result.numerator * num[i].denominator
49                 + num[i].numerator * result.denominator;
50         result.denominator = result.denominator * num[i].denominator;
51         if (result.numerator != 0) {
52             //避免累加和超出int范圍，每次累加後進行約分
53             int gcd = greatCommonDivisor(result.numerator, result.denominator);
54             result.numerator /= gcd;
55             result.denominator /= gcd;
56         }
57 
58     }
59 
60     //求平均
61     result.denominator *= n;
62     int gcd = greatCommonDivisor(result.numerator, result.denominator);
63     result.numerator /= gcd;
64     result.denominator /= gcd;
65 
66     //輸出結果
67     if (result.denominator == 1)
68         printf("%d\n", result.numerator);
69     else
70         printf("%d/%d\n", result.numerator, result.denominator);
71 
72     return 0;
73 }

題目鏈接：

http://pat.zju.edu.cn/contests/basic-programming/%E7%BB%93%E6%9E%84-05

首先從鍵盤輸入N個學生的M門課程的成績，然後計算並輸出每個學生的總成績與平均值

it's not hard.
#include <stdio.h>
#define N 3
#define M 3
main()
{
int a[N][M],sum[N]={0};
double avg[N];
int i,j;
for(i=0;i<N;i++)
{
printf("Input the %dth student's scores:",i+1);
for(j=0;j<M;j++)
{
scanf("%d",&a[i][j]);
sum[i]+=a[i][j];
}
avg[i]=(double)sum[i]/M;
}
printf("The sums are:");
for(i=0;i<N;i++)
printf("%4d",sum[i]);
printf("\nThe averages are:");
for(i=0;i<N;i++)
printf("%6.2lf",avg[i]);
printf("\n");
}
//ok i wish it will be help.
 

懷孕差7天4個月，胎兒四肢及細微結構顯示不滿意，正常？

我覺得你大可不必緊張，我以前B超的時候也遇到過這種情況！當時很著急去問大夫，其實是因為孩子的位置一直在變，B超大夫看的不是很清楚而已！比如孩子如果正好趴著，大夫就會寫面部顯示不滿意！呵呵！你放心好了！