Self-built OJ Kernel

In other words, the test results in windows are very unstable... There are still many bugs that won't be changed. Please prepare for the final exam.

Silly and naive...

Code:

#include <windows.h>#include <ntsecapi.h>#include<iostream>#include<cstdio>#include<cstring>#include<string>#define SystemProcessesAndThreadsInformation 5using namespace std;typedef DWORD (WINAPI *ZWQUERYSYSTEMINFORMATION) (DWORD,PVOID,DWORD,PDWORD);typedef struct _SYSTEM_PROCESS_INFORMATION{    DWORD NextEntryDelta;    DWORD ThreadCount;    DWORD Reserved1[6];    FILETIME ftCreateTime;    FILETIME ftUserTime;    FILETIME ftKernelTime;    UNICODE_STRING ProcessName;    DWORD BasePriority;    DWORD ProcessId;    DWORD InheritedFromProcessId;    DWORD HandleCount;    DWORD Reserved2[2];    DWORD VmCounters;    DWORD dCommitCharge;    ULONG   dwPageFaults;    DWORD   dwWorkingSetPeak;    DWORD   dwWorkingSet;    DWORD   dwQuotaPeakPagedPoolUsage;    DWORD   dwQuotaPagedPoolUsage;    DWORD   dwQuotaPeakNonPagedPoolUsage;    DWORD   dwQuotaNonPagedPoolUsage;    DWORD   dwPageFileUsage;    DWORD   dwPageFileUsagePeak;    PVOID ThreadInfos[1];} SYSTEM_PROCESS_INFORMATION, *PSYSTEM_PROCESS_INFORMATION;HMODULE hNtDll =GetModuleHandle("ntdll.dll");ZWQUERYSYSTEMINFORMATION ZwQuerySystemInformation = (ZWQUERYSYSTEMINFORMATION)GetProcAddress(hNtDll,"ZwQuerySystemInformation");ULONG cbBuffer=0x10000;LPVOID pBuffer=malloc(cbBuffer);string workpath,gpppath,gccpath,fpcpath,javapath,command,debuger;inline DWORD get(DWORD &pid){    ZwQuerySystemInformation(SystemProcessesAndThreadsInformation,pBuffer,cbBuffer,NULL);    PSYSTEM_PROCESS_INFORMATION pInfo = (PSYSTEM_PROCESS_INFORMATION)pBuffer;    while(1)    {        if(pInfo->ProcessId==pid)return pInfo->dwWorkingSet;        if(pInfo->NextEntryDelta==0)break;        pInfo=(PSYSTEM_PROCESS_INFORMATION)(((PUCHAR)pInfo)+pInfo->NextEntryDelta);    }    pid=0;    return 0;}inline void cls(){    for(int i=0;i<100;++i)printf("\b");}int Compling(int LanuageId){    printf("Compling...");    switch(LanuageId)    {        case 0:command=gpppath+"g++ foo.cpp -o foo -fno-asm -s -w -O1 -DONLINE_JUDGE  2>error.txt";break;        case 1:command=gccpath+"gcc foo.c -o foo -fno-asm -s -w -O1 -DONLINE_JUDGE  2>error.txt";break;        case 2:command=fpcpath+"fpc foo.pas -Sg -dONLINE_JUDGE>error.txt"; break;        case 3:command=javapath+"javac foo.java 2> error.txt"; break;        default :printf("Sorry,system nonsupport this lanuage.\n");    }    if(system(command.c_str())==0)return 1;    return 0;}int Debug(int LanuageId){    cls();    printf("Testing...");    /***************************************************/    fclose(stdin);    fclose(stdout);    STARTUPINFO si={0};    PROCESS_INFORMATION pi={0};    si.cb=sizeof(si);    freopen("test.txt","r",stdin);    si.hStdInput=GetStdHandle(STD_INPUT_HANDLE);    freopen("out.txt","w",stdout);    si.hStdOutput=GetStdHandle(STD_OUTPUT_HANDLE);    si.hStdError=GetStdHandle(STD_ERROR_HANDLE);    si.dwFlags=STARTF_USESTDHANDLES;    /***************************************************/    if(LanuageId<3)command="foo";    else command=javapath+"java foo";    TCHAR *szCommandLine=new TCHAR[command.size()+1];    szCommandLine[command.size()]=0;    copy(command.begin(),command.end(),szCommandLine);    DWORD StartTime=GetTickCount();    DWORD EndTime;    DWORD TimeLen=2000;    DWORD MemorySize=5000000;    DWORD Maxsize=0;    int ERROR_ID=0;    if(CreateProcess(NULL,szCommandLine,NULL,NULL,TRUE,0,NULL,NULL,&si,&pi))    {        while(pi.dwProcessId)        {            Maxsize=max(Maxsize,get(pi.dwProcessId));            if(Maxsize>MemorySize)            {                ERROR_ID=2;                break;            }            if(StartTime+TimeLen<GetTickCount())            {                ERROR_ID=1;                break;            }        }        if(ERROR_ID)CloseHandle(pi.hThread),CloseHandle(pi.hProcess);        EndTime=GetTickCount();    }    else ERROR_ID=3;    fclose(stdin);    fclose(stdout);    freopen("CON", "w", stdout);    cls();    if(ERROR_ID==1)cout<<"Time Limit Exceed"<<endl;    if(ERROR_ID==2)cout<<"Memory Limit Exceed"<<endl;    if(ERROR_ID==3)cout<<"Runtime Error "<<GetLastError()<<endl;    if(!ERROR_ID)    {        command="fc ans.txt out.txt >Debug.txt";        if(system(command.c_str())==0)        {            cout<<"Accept "<<EndTime-StartTime<<" ms  "<<(Maxsize/1024)<<" K"<<endl;        }        else printf("Wrong Answer\n");    }    return 0;}void setworkpath(){    workpath="D:\\project\\";    gpppath=workpath+"compiler\\MinGW\\bin\\";    gccpath=workpath+"compiler\\MinGW\\bin\\";    fpcpath=workpath+"compiler\\fpc\\";    javapath=workpath+"compiler\\java\\bin\\";}int main(){    setworkpath();    if(Compling(0))Debug(0);    else printf("Complie Error\n");    free(pBuffer);    command="del foo.exe foo.class error.txt out.txt Debug.txt";    system(command.c_str());    return 0;}