Getting data separated by space in C++

[guana]

What's the best/fastest/most convenient way to do it? Especially with numbers separated by space and when the amount of numbers isn't constant in different cases.

[swarnaprakash]

If you know the number of space separated integers in each line then you can use cin or scanf(in a for loop). Both cin and scanf ignore whitespaces.
But remember that scanf is much faster than cin.

[guana]

If you know the number of space separated integers in each line then you can use cin or scanf(in a for loop). Both cin and scanf ignore whitespaces.
But remember that scanf is much faster than cin.

Oh thanks, I didn't realize you could do it like this:

    int n;
    scanf("%d", &n);
    int a[n];
    for (int i = 0; i < n; i++) {
        scanf("%d", &a[i]);    
    }

I was expecting scanf to always read a single input line, ie. a string followed by return. This is really neat.