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 10:54:21
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
1022202022212442范兼玮Accepted
1068KB
12ms
C1460 bytes2023-05-04 21:51:39
1022042022212442范兼玮Wrong Answer
1068KB
11ms
C1843 bytes2023-05-04 21:44:28
1020622022212442范兼玮*Accepted74125
1192KB
10ms
C1800 bytes2023-05-04 18:09:28
1020552022212442范兼玮Wrong Answer
1192KB
12ms
C1801 bytes2023-05-04 18:03:20
1020532022212442范兼玮Presentation Error
1192KB
12ms
C1800 bytes2023-05-04 18:02:01
1020112022212442范兼玮Runtime Error
1192KB
11ms
C1577 bytes2023-05-04 16:42:52
1019972022212442范兼玮Accepted
1196KB
11ms
C3333 bytes2023-05-04 16:11:06
1019962022212442范兼玮Wrong Answer
1196KB
12ms
C2835 bytes2023-05-04 16:10:06
1019952022212442范兼玮Wrong Answer
1196KB
12ms
C2755 bytes2023-05-04 16:09:54
1019932022212442范兼玮Wrong Answer
1196KB
11ms
C3334 bytes2023-05-04 16:09:37
1019922022212442范兼玮Wrong Answer
1196KB
11ms
C2660 bytes2023-05-04 16:06:44
1019912022212442范兼玮Wrong Answer
1196KB
10ms
C1852 bytes2023-05-04 16:06:24
1019902022212442范兼玮Wrong Answer
1196KB
10ms
C1991 bytes2023-05-04 16:05:23
1019892022212442范兼玮Wrong Answer
1196KB
9ms
C2649 bytes2023-05-04 16:05:00
1019882022212442范兼玮Wrong Answer
1196KB
11ms
C2649 bytes2023-05-04 16:04:42
1019872022212442范兼玮Wrong Answer
1196KB
12ms
C2660 bytes2023-05-04 16:04:19
1019852022212442范兼玮Wrong Answer
1196KB
11ms
C2647 bytes2023-05-04 16:04:09
1019802022212442范兼玮Wrong Answer
1196KB
11ms
C2673 bytes2023-05-04 16:02:10
1019792022212442范兼玮Compile Error
0KB
0ms
C2672 bytes2023-05-04 16:01:59
1019772022212442范兼玮Wrong Answer
1196KB
9ms
C2660 bytes2023-05-04 16:01:41
1019702022212442范兼玮Wrong Answer
1196KB
12ms
C2660 bytes2023-05-04 15:55:36
1019672022212442范兼玮Wrong Answer
1196KB
11ms
C2658 bytes2023-05-04 15:54:26
1019552022212442范兼玮Wrong Answer
1192KB
10ms
C1145 bytes2023-05-04 15:44:04
1019542022212442范兼玮Wrong Answer
1192KB
10ms
C1146 bytes2023-05-04 15:43:41
1019532022212442范兼玮Wrong Answer
1192KB
11ms
C1148 bytes2023-05-04 15:43:05
1019482022212442范兼玮Wrong Answer
1192KB
8ms
C666 bytes2023-05-04 15:39:03
1019432022212442范兼玮Wrong Answer
1192KB
9ms
C673 bytes2023-05-04 15:37:15
1019062022212442范兼玮Wrong Answer
1196KB
12ms
C1449 bytes2023-05-04 14:53:11
1019012022212442范兼玮Runtime Error
1196KB
12ms
C2117 bytes2023-05-04 14:34:44
1019002022212442范兼玮Compile Error
0KB
0ms
C2124 bytes2023-05-04 14:34:01
1018992022212442范兼玮Runtime Error
1196KB
12ms
C2142 bytes2023-05-04 14:31:46
1018962022212442范兼玮Output Limit Exceed
1192KB
10ms
C2096 bytes2023-05-04 14:29:11
1018942022212442范兼玮Output Limit Exceed
1192KB
11ms
C1729 bytes2023-05-04 14:27:53
1018872022212442范兼玮Wrong Answer
1192KB
12ms
C3913 bytes2023-05-04 14:14:28
1016532022212442范兼玮Accepted
1196KB
8ms
C2766 bytes2023-05-03 22:19:18
1016482022212442范兼玮Wrong Answer
1196KB
9ms
C2766 bytes2023-05-03 22:17:51
1016292022212442范兼玮Wrong Answer
1192KB
11ms
C1603 bytes2023-05-03 21:55:44
1016262022212442范兼玮Wrong Answer
1192KB
9ms
C1600 bytes2023-05-03 21:51:58
1016232022212442范兼玮Output Limit Exceed
1192KB
9ms
C1688 bytes2023-05-03 21:51:09
1015762022212442范兼玮Wrong Answer
1192KB
9ms
C913 bytes2023-05-03 21:15:57
1015722022212442范兼玮Output Limit Exceed
1192KB
9ms
C1003 bytes2023-05-03 21:12:03
1015702022212442范兼玮Output Limit Exceed
1192KB
10ms
C1002 bytes2023-05-03 21:10:15
1015692022212442范兼玮Output Limit Exceed
1192KB
8ms
C998 bytes2023-05-03 21:08:59
1015642022212442范兼玮Wrong Answer
1192KB
6ms
C1001 bytes2023-05-03 21:08:11
1015622022212442范兼玮Wrong Answer
1192KB
6ms
C999 bytes2023-05-03 21:06:02