How does scanf work in pros?

Question

C++ / C#

how does scanf work in pros?
I need to ask for the input of a string in a loop at each iteration.
cin » s1
allows you to do this, but
scanf("%255[^\n]", s1)
only 1 time.
In addition, cin "eats" everything after a space.

Answer 1

I need to ask for the input of a string in a loop at each iteration.
cin » s1
allows you to do this, but
scanf("%255[^\n]", s1)
only 1 time.

But this scanf -- allows you to do this as many times as you like:
And this one allows you to enter a string of unknown length in advance:

char *p;
scanf("%m[^\n]\n", &p);

Answer 2

1. To enter a line, use std::getline.
2. Well, C++ has well-encapsulated strings, but C doesn't. Therefore, in C it is very difficult to get a string of unknown length from a stream.

Answer 3

charbuf[256];
fscanf(stdin,"%255[\n]",buf);
The scanf markup language is unusual, but it allows you to parse strings very quickly (for example, simple csv without escaped quotes and separators in strings containing, for example, numbers).