help with vector..

[Anddos]

#include <iostream>
#include <vector>
#include <windows.h>

using namespace std;
using std::vector;
int main()
{
      vector<int> vi;
      for (int i = 0; i < 100; i++)
      {
      Sleep(5000);
      vi.push_back(i);
      
      cout< <<endl; //heres the prob , i want to cout vi[0] then vi[1]
      Sleep(5000);      //as the for loop assigns values to the vector 
      }
return 0;
}

[JaWiB]

So you want this?

std::cout<<vi[i]<<std::endl;

[Daved]

>> i want to cout vi[0] then vi[1]

What is the problem? Other than the first time through the loop when vi[1] is invalid, you can do that if you want. It doesn't seem to make a lot of sense, though, maybe you could describe better what you are trying to do.

[MadCow257]

?

#include <iostream>
#include <vector>
#include <windows.h>
using namespace std;

int main()
{
	vector<int> vi;
	for (int i = 0; i < 100; i++)
	{
	//	Sleep(5000);
		vi.push_back(i);
	}
	cout << vi[0] << vi[1];
}

[Salem]

> cout< <<endl;
Three < ?
Where's the variable you want to output?

[Anddos]

thanks for the quick replys ...
i was doing vi[0][i] so it would start from 0 element
the whole idea was i didnt know how to cout in order as the for loop assigns

[Bench82]

You could also use vi.at(i) instead of vi[i]

The added bonus with at() is that it will range-check for you, in case somewhere along the line your program doesn't manage to fill the element you are trying to retrieve. (it will throw an error - But that is far better than the undefined behaviour you would otherwise get)