produce.cpp

来自「比较各种排序的算法间的运行效率 自己写的不太完善」· C++ 代码 · 共 25 行

const int MAXNUM =100000;
void produce(char *FileName)
{
     int i;
     ofstream outFile;
     
     outFile.open(FileName);
	 if(!outFile)
	 {
	  	cout<<FileName<<" can't open."<<endl;
	   	abort();
   	 }

	 srand((int)time(0));
	 for(i=0;i<NUM;i++)
	 {
	  	outFile<<(long)(rand()/32767.0*MAXNUM)<<" ";
     }
	
     outFile.close();
     
     return ;
     
 }//产生数组数据，并且放在文件中