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 : 2025-09-22 01:14:40
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
723892022211480马耳东风Accepted
1192KB
10ms
C1016 bytes2023-03-28 23:52:30
723882022212702宋健Accepted
1196KB
10ms
C2014 bytes2023-03-28 23:50:59
723792022211480马耳东风Wrong Answer
1192KB
10ms
C977 bytes2023-03-28 23:43:16
723772022211480马耳东风Wrong Answer
1192KB
13ms
C994 bytes2023-03-28 23:42:54
723742022212702宋健Wrong Answer
1196KB
11ms
C1994 bytes2023-03-28 23:38:45
723612022212702宋健Wrong Answer
1196KB
12ms
C1992 bytes2023-03-28 23:31:33
723222022212702宋健Wrong Answer
1196KB
9ms
C1998 bytes2023-03-28 23:08:42
722252022212702宋健Accepted
1192KB
11ms
C2168 bytes2023-03-28 22:36:39
722242022212702宋健Wrong Answer
1192KB
11ms
C2169 bytes2023-03-28 22:36:04
722202022212702宋健Wrong Answer
1192KB
9ms
C2168 bytes2023-03-28 22:35:00
722192022212702宋健Wrong Answer
1192KB
9ms
C2154 bytes2023-03-28 22:34:16
722172022212702宋健Wrong Answer
1068KB
4ms
C2155 bytes2023-03-28 22:33:20
722012022211480马耳东风Accepted
1196KB
9ms
C4444 bytes2023-03-28 22:28:07
721902022211480马耳东风Output Limit Exceed
1196KB
10ms
C4469 bytes2023-03-28 22:24:19
721792022212702宋健Wrong Answer
1192KB
11ms
C2142 bytes2023-03-28 22:22:15
721742022212615luckyBUPTAccepted
1192KB
11ms
C1608 bytes2023-03-28 22:20:51
721722022212615luckyBUPTWrong Answer
1192KB
9ms
C1608 bytes2023-03-28 22:20:09
721592022211480马耳东风Wrong Answer
1196KB
11ms
C4454 bytes2023-03-28 22:15:47
721582022211480马耳东风Wrong Answer
1196KB
11ms
C4448 bytes2023-03-28 22:15:24
721562022211480马耳东风Wrong Answer
1196KB
11ms
C4442 bytes2023-03-28 22:14:42
721412022212702宋健Wrong Answer
1192KB
11ms
C2126 bytes2023-03-28 22:06:46
721212022211480马耳东风Wrong Answer
1196KB
10ms
C4447 bytes2023-03-28 22:00:53
721122022212702宋健Wrong Answer
1192KB
10ms
C1903 bytes2023-03-28 21:57:58
720982022211480马耳东风Wrong Answer
1192KB
12ms
C3203 bytes2023-03-28 21:53:52
720962022211668字禹润*Accepted68657
1192KB
13ms
C1832 bytes2023-03-28 21:53:32
720902022211480马耳东风Wrong Answer
1192KB
11ms
C3215 bytes2023-03-28 21:51:48
720872022211480马耳东风Wrong Answer
1192KB
12ms
C3213 bytes2023-03-28 21:51:22
720832022211668字禹润Wrong Answer
1192KB
11ms
C1872 bytes2023-03-28 21:50:17
720802022211480马耳东风Wrong Answer
1192KB
10ms
C3210 bytes2023-03-28 21:49:13
720782022211480马耳东风Wrong Answer
1192KB
10ms
C3214 bytes2023-03-28 21:48:59
720702022211668字禹润Wrong Answer
1192KB
11ms
C1869 bytes2023-03-28 21:47:46
720672022211480马耳东风Wrong Answer
1192KB
9ms
C3210 bytes2023-03-28 21:47:20
720642022211668字禹润Wrong Answer
1192KB
10ms
C1873 bytes2023-03-28 21:46:56
720612022211480马耳东风Runtime Error
1192KB
9ms
C3220 bytes2023-03-28 21:46:45
720542022211668字禹润Runtime Error
1192KB
11ms
C1873 bytes2023-03-28 21:45:19
720482022211668字禹润Runtime Error
1192KB
9ms
C1905 bytes2023-03-28 21:42:03
720392022211480马耳东风Wrong Answer
1192KB
12ms
C2843 bytes2023-03-28 21:36:43
720372022211480马耳东风Wrong Answer
1192KB
10ms
C2845 bytes2023-03-28 21:36:31
720342022211480马耳东风Wrong Answer
1192KB
10ms
C2851 bytes2023-03-28 21:35:34
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
719822022211480马耳东风Wrong Answer
1192KB
11ms
C2441 bytes2023-03-28 21:19:13
719732022211668字禹润Accepted
1192KB
11ms
C2335 bytes2023-03-28 21:17:46
719652022211480马耳东风Wrong Answer
1192KB
11ms
C2432 bytes2023-03-28 21:15:15
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