I dont know how to use Template for multiple input. Can you help me ?
Fast Input Code
Sorry for my bad English. Correct me if I am wrong.
Thanks for reading <3
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I dont know how to use Template for multiple input. Can you help me ?
template <typename T>
bool read_int(T &x) {
bool start = false , neg = false;
T ret = 0;
for (char r; r = getchar(); ) {
if (r == '-') neg = true;
else if ((r < '0' || r > '9'))
if (start) return false; else continue;
else
ret += r - '0';
if (start) ret *=10;
start = true;
}
return x = (neg ? -ret : ret), true;
}
template <typename T, typename... Tnext>
bool read_int(T &x, Tnext... next)
{
read_int(next...);
}
Sorry for my bad English. Correct me if I am wrong.
Thanks for reading <3
Name |
---|
Int the first template:
Int the second template:
What happened ;-; ? I use vscode
Run code in
CUSTOM TEST
doesnt work tooThe bug is in your original
read_int
Both of these work fine.
Yes they are <3 Thanks
But how can I
detect
if there is no valid input ?You're welcome!
I don't know how to manipulate that function, I believe cin/cout with sync is enough.
If you meant how to read until the input ends, it's done like this:
Yes I know about it, but I mean to the template of custom cin >> operator
well... actually I have just meet a problem where cin_with_sync is not enough :) And this is the first problem I need to use FastInput, I was surprised
How can I check if there is no more arguments in parametter ?