安裝以下工具:
1.JRE (Eclipse本身是Java打造,需要JRE執行環境,若要寫Java程式則必須裝JRE、JDK)
2.Eclipse
3.CDT (讓Eclipse支援C/C++)
4.MinGW (C/C++ Compiler)
2011/04/23
2011/04/05
2011/04/01
亂數
#include <cstdlib>
#include <iostream>
#include <time.h>
using namespace std;
int main(int argc, char *argv[])
{
bool Find = false;
int A,B;//表示範圍的起始與結束
int Change;
int Num;
int Temp;
int Index = 0;
srand(time(NULL));
cout << "請輸入範圍起始值:";
cin >> A;
cout << "請輸入範圍結束值:";
cin >> B;
if(A>B)
{
Change = A;
A = B;
B = Change;
}
cout << "請輸入亂數個數:";
cin >> Num;
int Box[Num];
for(int i=0; i<Num; i++)
{
Box[i] = 0;
}
Box[Num-1] = -1;
while(Box[Num-1] == -1)
{
Find = false;//此處旗標需重新設定為false!
Temp = rand()%B+A;
for(int j=0; j<Num; j++)
{
if(Box[j] == Temp)
{
Find = true;
break;
}
}
//
if(!Find)
{
Box[Index] = Temp;
Index++;
}
}
//輸出產生的亂數
cout << "產生的亂數:" << endl;
for(int k=0; k<Num; k++)
{
cout << Box[k] << " ";
}
cout << endl;
system("PAUSE");
return EXIT_SUCCESS;
}
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