Ruudukko

#include <iostream>
#include <string>
using namespace std;

int main()
{
	int num;
	cin >> num;
	int a[num], b[num];
	for(int i = 0; i < num; i++)
	{
		cin >> a[i] >> b[i];
	}
	for(int i = 0; i < num; i++) // Loops through all the pairs of numbers
	{
		int ans = 0;
		for(int c = b[i]; c >= a[i]; c--) // Goes through all the numbers between a and b checking if the number only has 1's and 0̈́'s in it.
		{
			bool check = false;
			string s = to_string(c);
			for(unsigned int n = 0; n < s.size(); n++)
			{
				if(s[n] != '1' && s[n] != '0')
				{
					check = true;
					break;
				}

			}
			if(!check)
			{
				ans++;
			}

		}
		cout << ans << endl;
	}
	return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: TIME LIMIT EXCEEDED

Test 4

Verdict: TIME LIMIT EXCEEDED

Test 5

Verdict: TIME LIMIT EXCEEDED

Test 6

Verdict: TIME LIMIT EXCEEDED