#include?
#include?
#include?
int?main（）
{
//srand（（int）time（0））;
time_t?s1s2;
s1=clock（）;
int?a=rand（）%4+10;
int?s;
for?（int?i=0;i<40000+a;i++）
{
????for?（int?j=0;j<40000;j++）
????{
??????s=s+i*j;
????}
}
s2=clock（）;
printf（“%d\n“s）;
printf（“%f“difftime（s2s1））;
getchar（）;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????446??2019-05-13?11:46??speed\b7speed\Project1.cfg

?????文件???????2014??2019-05-13?11:46??speed\b7speed\Project1.dof

?????文件????????188??2019-05-13?10:34??speed\b7speed\Project1.dpr

?????文件???????1356??2019-05-13?09:58??speed\b7speed\Project1.res

?????文件???????4157??2019-05-13?10:34??speed\b7speed\Unit1.dcu

?????文件?????????51??2019-05-13?11:46??speed\b7speed\Unit1.ddp

?????文件????????733??2019-05-13?11:45??speed\b7speed\Unit1.dfm

?????文件????????801??2019-05-13?10:34??speed\b7speed\Unit1.pas

?????文件???????4095??2019-05-13?11:48??speed\bcbspeed\Project1.bpr

?????文件???????1069??2019-05-13?10:47??speed\bcbspeed\Project1.cpp

?????文件???????1356??2019-05-13?11:48??speed\bcbspeed\Project1.res

?????文件???????1066??2019-05-13?10:47??speed\bcbspeed\Unit1.cpp

?????文件?????????51??2019-05-13?11:48??speed\bcbspeed\Unit1.ddp

?????文件????????732??2019-05-13?11:47??speed\bcbspeed\Unit1.dfm

?????文件????????882??2019-05-13?10:36??speed\bcbspeed\Unit1.h

?????文件??????28712??2019-05-13?12:03??speed\bin\c++speed.exe

?????文件?????471040??2019-05-13?11:48??speed\bin\cb6speed.exe

?????文件?????380928??2019-05-13?11:45??speed\bin\d7speed.exe

?????文件?????700416??2019-05-13?10:59??speed\bin\espeed.exe

?????文件???????2048??2019-05-13?12:05??speed\bin\tccspeed.exe

?????文件????????329??2019-05-13?12:04??speed\speed.c

?????文件????????446??2019-05-13?12:03??speed\speed.cpp

?????文件????????349??2019-05-13?12:09??speed\speed1.c

?????文件???????2048??2019-05-13?12:11??speed\speed1.exe

?????文件???????2921??2019-05-13?11:21??speed\testspeed.e

?????目錄??????????0??2019-05-13?11:52??speed\b7speed

?????目錄??????????0??2019-05-13?11:52??speed\bcbspeed

?????目錄??????????0??2019-05-13?12:06??speed\bin

?????目錄??????????0??2019-05-13?12:11??speed

-----------?---------??----------?-----??----

............此處省略2個文件信息