getint.cpp

#include <cstdio>
#define get getchar_unlocked
template<typename T>
void read(T &n)
{
  n = 0; T sign = 1; char c = get();
  while (c < '0' || c > '9') {
    if (c == '-') sign = -1;
    c = get();
  }
  while (c >= '0' && c <= '9') {
    n = (n << 3) + (n << 1) + c - '0';
    c = get();
  }
  n *= sign;
}
#undef get


// example usage

int main() {
  int n, m;
  read(n);
  read(m);
  printf("%d %d\n", n, m);
}