CONTEST ID : 1134 - 2023春-计导课设-转专业-文件练习

文件操作练习。注意B题的读取不能用struct。
D和谐词汇的题,输入是若干字符串,不以空行结束. 所以 gets(line);    while (line[0]){... gets(line);}就会导致时间超限,代码在等空行,但in数据没有。应改为while(gets(line))。
/*文件练习B题. 读取一个包含7类数据的二进制文件,找到指定部分内容,并正确解释输出。
思路分析:主体框架是读取二进制文件,   while (fread(buffer, buffLen, 1, infile) > 0){...}
因为二进制文件的记录长度是固定的,所以可以计算每条记录的长度,使用fseek直接定位到指定段;
所以用fseek的话,实际只需要读一次就可以。
但是这道题的特殊之处在于,一条记录内是顺序包含7种类型数据,是分多次写入,因此带来的麻烦是
虽然每段内容结构相同,但不能用struct进行整块读取。
因为struct的成员之间有内存空隙;除非源文件本身是用struct格式写入才行。
经测试,struct {含7种变量和数组}的长度为200, 但实际7种变量和数组的总长要小一些.
因此,可以直接定位,但必须分别读取,写出的代码冗长,且容易在变量名和输出格式上出错。
一种办法是:按总长度整块读取到字节数组中,然后再逐个定义对应类型的指针,按间接访问就可格式化解释输出。
例: char buffer[LEN];
int i=0; printf("%c\n", buffer[i]); i++;
short * hdPtr=&buffer[i];  printf("%hd\n", *hdPtr); i+=sizeof(short);
*/


SERVER TIME : 2025-09-19 21:03:16
Finished

STATUS : End    OPEN : Private
Start Time : 2023-03-24 12:00:00
End Time : 2023-05-04 23:59:00


Problem ID    User    Language    Result   

RunID User Nick Name Problem ID Result Memory Time Language Code Length Submit Time
7944420222120362022212036Accepted
1196KB
13ms
C2044 bytes2023-04-03 00:02:11
7944320222120362022212036Compile Error
0KB
0ms
C2043 bytes2023-04-03 00:01:41
7941920222120362022212036*Accepted64826
1192KB
11ms
C1723 bytes2023-04-02 23:10:29
7941320222120362022212036Wrong Answer
1192KB
11ms
C1649 bytes2023-04-02 23:05:29
7934920222120362022212036Accepted
1224KB
9ms
C4921 bytes2023-04-02 21:21:26
7916320222120362022212036Wrong Answer
1224KB
9ms
C4400 bytes2023-04-02 20:02:40
7633620222120362022212036Accepted
1116KB
12ms
C1162 bytes2023-03-31 15:08:16
7580920222120362022212036Wrong Answer
1116KB
10ms
C1136 bytes2023-03-31 07:36:05
7540620222120362022212036Wrong Answer
1220KB
9ms
C1115 bytes2023-03-30 22:28:31
7538720222120362022212036Wrong Answer
1204KB
12ms
C1116 bytes2023-03-30 22:24:04
7527120222120362022212036Wrong Answer
1204KB
9ms
C1115 bytes2023-03-30 21:54:53
7526020222120362022212036Wrong Answer
1204KB
12ms
C1118 bytes2023-03-30 21:53:19
7521420222120362022212036Wrong Answer
1204KB
10ms
C1125 bytes2023-03-30 21:40:22
7509820222120362022212036Wrong Answer
1088KB
10ms
C1238 bytes2023-03-30 21:08:00
7365420222120362022212036Accepted
1196KB
12ms
C2134 bytes2023-03-29 22:19:40
7363920222120362022212036Accepted
1196KB
10ms
C2288 bytes2023-03-29 22:13:17
7203320222120362022212036Wrong Answer
1192KB
12ms
C2349 bytes2023-03-28 21:35:12
7202720222120362022212036Wrong Answer
1192KB
12ms
C2314 bytes2023-03-28 21:32:49
7202320222120362022212036Wrong Answer
1192KB
12ms
C2313 bytes2023-03-28 21:31:56
7198920222120362022212036Wrong Answer
1192KB
10ms
C2272 bytes2023-03-28 21:21:25
7198320222120362022212036Wrong Answer
1192KB
13ms
C2269 bytes2023-03-28 21:19:14
7196220222120362022212036Wrong Answer
1192KB
12ms
C2270 bytes2023-03-28 21:14:08
7194620222120362022212036Wrong Answer
1192KB
9ms
C2310 bytes2023-03-28 21:06:48
7193920222120362022212036Wrong Answer
1192KB
5ms
C2310 bytes2023-03-28 21:05:47
7189920222120362022212036Wrong Answer
1192KB
13ms
C2255 bytes2023-03-28 20:49:45
7188820222120362022212036Wrong Answer
1192KB
10ms
C2256 bytes2023-03-28 20:44:03
7176020222120362022212036Wrong Answer
1192KB
9ms
C1788 bytes2023-03-28 19:12:48
7174920222120362022212036Wrong Answer
1192KB
10ms
C1784 bytes2023-03-28 19:01:18
7174720222120362022212036Wrong Answer
1192KB
11ms
C1802 bytes2023-03-28 19:00:32
7105820222120362022212036Wrong Answer
1192KB
6ms
C1799 bytes2023-03-27 22:48:32
7105520222120362022212036Wrong Answer
1192KB
5ms
C1795 bytes2023-03-27 22:47:46
7100520222120362022212036Wrong Answer
1192KB
7ms
C1803 bytes2023-03-27 22:17:21
7098920222120362022212036Wrong Answer
1192KB
12ms
C1799 bytes2023-03-27 22:13:50
7098320222120362022212036Wrong Answer
1192KB
10ms
C1825 bytes2023-03-27 22:12:17
7098120222120362022212036Wrong Answer
1192KB
11ms
C1817 bytes2023-03-27 22:11:28
7097920222120362022212036Wrong Answer
1192KB
11ms
C1791 bytes2023-03-27 22:10:08
7097620222120362022212036Wrong Answer
1192KB
12ms
C1826 bytes2023-03-27 22:09:25
7097220222120362022212036Wrong Answer
1192KB
10ms
C1796 bytes2023-03-27 22:07:26
7086920222120362022212036Wrong Answer
1192KB
9ms
C1764 bytes2023-03-27 21:25:30
7085220222120362022212036Wrong Answer
1192KB
12ms
C1787 bytes2023-03-27 21:16:07
7080120222120362022212036Wrong Answer
1192KB
8ms
C1775 bytes2023-03-27 20:51:18
7078320222120362022212036Wrong Answer
1192KB
9ms
C1775 bytes2023-03-27 20:44:03
7077820222120362022212036Wrong Answer
1192KB
8ms
C1777 bytes2023-03-27 20:41:48
7074920222120362022212036Wrong Answer
1192KB
9ms
C1632 bytes2023-03-27 20:28:13
7073220222120362022212036Compile Error
0KB
0ms
C1632 bytes2023-03-27 20:18:46
7073120222120362022212036Compile Error
0KB
0ms
C1601 bytes2023-03-27 20:18:00
7073020222120362022212036Compile Error
0KB
0ms
C1654 bytes2023-03-27 20:17:07