int main()
{
int N;
ElementType *A;
scanf("%d", &N);
A = (ElementType *)malloc(N * sizeof(ElementType));
Read( A, N );
MySort( A, N );
PrintA( A, N );
return 0;
}
/*********************************************************************************\
从考试成绩中划出及格线
10个学生考完期末考试评卷完成后，A老师需要划出及格线，要求如下：
(1) 及格线是10的倍数；
(2) 保证至少有60%的学生及格；
(3) 如果所有的学生都高于60分，则及格线为60分
\*********************************************************************************/
int PassLine(float score[], size_t n)
{
int pl(0);
MySort(score, n);
for (size_t i = 0; i<n; ++i){
std::cout << score[i] << ' ';
}
std::cout << std::endl;
pl = score[int(n*(1 - 0.6) - 1)];
pl = (int(pl / 10)) * 10;
if (pl<int(score[int(n*(1 - 0.6))])){
pl = int(int(score[int(n*(1 - 0.6))]) / 10) * 10;
}
if (score[0]>60) pl = 60;
return pl;
}
DWORD WINAPI MyThreadProc1(LPVOID lpParameter)
{
while(true)
{
WaitForSingleObject(hMutex,INFINITE);
int DouNums1; //数据块共有多少个浮点数
unsigned int Length1 = 0; //数据块的长度，总字节数
char * DataBuf1 = new char[DataBlock]; //数据块缓冲区
double * DouBuf1 = new double[MaxSizeDou]; //数据块双精度浮点数数组
char * Buffer1 = new char[MyBufferSize];
while(!(feof(InFile))){
//线程1的读排写
if((Length1 = fread(DataBuf1, sizeof(char), DataBlock - 20, InFile)) < DataBlock - 20){
ReleaseMutex(hMutex);
DataBuf1[Length1] = '\0';
DouNums1 = Str2Dou(DataBuf1, DouBuf1);
MySort((RadixData*)DouBuf1, DouNums1);
if(FileCount == 0){
FILE * OutFile = NULL;
OutFile = fopen(OutFileName, "wb");
int LengthTemp, LengthOutPut = 0;
for(int i = 0; i < DouNums1; i++){
LengthTemp = Dou2Str(Buffer1 + LengthOutPut, DouBuf1[i]);
LengthOutPut += LengthTemp;
}
fwrite(Buffer1, 1, LengthOutPut, OutFile); //将整块字符串fwrite到输出文件
fclose(OutFile);
FileCount++;
}
else{
char * FileName = TempFileName(FileCount++);
FILE *TempFile = fopen(FileName, "wb");
free(FileName);
WriteData(TempFile, DouBuf1, DouNums1);
fclose(TempFile);
}
}
else{
char * p = DataBuf1 + Length1 - 1;
int i = 0;
while(*p != '\n' && *p != '\0'){
fread(DataBuf1 + Length1 + i, 1, 1, InFile);
p++;
i++;
}
DataBuf1[Length1 + i] = '\0';
DouNums1 = Str2Dou(DataBuf1, DouBuf1);
ReleaseMutex(hMutex);
MySort((RadixData*)DouBuf1, DouNums1);
char * FileName = TempFileName(FileCount++);
FILE *TempFile = fopen(FileName, "wb");
free(FileName);
WriteData(TempFile, DouBuf1, DouNums1);
fclose(TempFile);
}
}
delete []DataBuf1;
delete []DouBuf1;
delete []Buffer1;
break;
}
flag1 = true;
return 0;
}
