I found this code in a competitive programming book for ICPC. The objective is to scan inputs which have a pattern where there are N numbers like 0.4586... (starting with 0. and terminating with ...). I tried giving the inputs but on pressing enter key the entire while loop executes at once and I don't get the chance to input the numbers. So I tried using spaces but that doesn't work either. Nothing gets scanned in the while loop however the code works fine if I remove the while loop. Can someone explain this behaviour.
#include <bits/stdc++.h>
using namespace std;
char digits[100];
int main() {
int N;
scanf("%d", &N);
while (N--) {
scanf("0.%[0-9]...", &digits);
printf("the digits are 0.%s\n", digits);
}
}
