lecture 9.16

consultation: Mon 4:15-5:15pm  ( week 3-10 )

      Fri 2-3pm  ( week 1-10 )

      lab: Fri 12-1pm  ( CSE Drum Lab, B08 in K17 basement, David )

前两次作业不计分(Moodle),每次作业两分,单数周题目,双数周code练习,deadline都是Monday11am

期中考试网上考试,12分,选择题加简答题,1小时

期中之后assignment,12分,deadline在第10周

期末选择题简答题,double pass

1. B was a typeless language, C is a typed language

2. in the main function, return 0 means the code run successfully

3. 对给出数组进行从小到大排序的算法是,从第二个数开始依次跟左边的数进行比较(重复比较),将更大的放到后面,直到遍历完所有的数

 1 #include <stdio.h>  //include standard I/O library defs and functions
 2 #define SIZE 6  //define a symbolilc constant
 3 void insertionSort(int array[],int n)  //functions headers must provide types 
 4 { 
 5     int i;  //each variable must have a type
 6     for (i=1; i<n; i++) 
 7     {
 8         int element=array[i];
 9         int j=i-1;
10         while (j>=0 && array[j]>element) 
11         {
12             array[j+1]=array[j];
13             j--;
14         }
15     array[j+1]=element;
16     }
17 }
18 int main(void)  //main:program starts here
19 {
20     int numbers[SIZE]={3,6,5,2,4,1};
21     int i;
22     insertionSort(numbers,SIZE);
23     for(i=0; i<SIZE; i++)
24         printf("%d
", numbers[i]);  //printf defined in stdio
25     return 0;
26 }

4. void是没有返回值的函数

5. i++ means i=i+1 ( now you can understand C++ )

6. && means and

7. 循环语句里只有一句话时可以不加{},如代码中第24行

8. 使用gcc:

To compile a program prog.c, type:

    prompt$ gcc prog.c

To run the program, type:

    prompt$ ./a.out

#editor不做要求,老师使用的是emacs, 建议使用带有highlighting功能的,更加醒目

9. 尽量使用第一种,不推荐第二种

 10.  assignment(赋值)可以与循环结合

原文地址:https://www.cnblogs.com/eleni/p/11548771.html