[問題] 如何同時取到數個不同的隨機數
我的程式需要連續取出幾個不同的隨機數,
但按照以下程式則會取出相同的隨機數,
癥結應該是在srand的地方,有什麼好辦法可以解決呢?
#include <cstdlib>
#include <cstdio>
#include <ctime>
#include <iostream>
using namespace std;
int PickRandomNumber(int a, int b)
{
srand( (unsigned) time(NULL) );
int num = ( a + (rand() % (b-a+1)) );
return num;
}
int main ()
{
int num = PickRandomNumber(0,10);
int num2 = PickRandomNumber(0,10);
cout << num << endl;
cout << num2 << endl;
return 0;
}
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