Submission #162420

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>

#include <iostream>

#include <string>
#include <vector>

using namespace std;


int A, B;

int main()
{

	cin >> A >> B;

	int res =0;
	for( int i=A; i<B; ++i )
	{
		int k=i;
		while( k>0 )
		{
			const int d =k%10;
			if ( d==4 || d ==9 ){ ++res; break; }
			k /= 10;
		}
	}

	cout << res << endl;

	return 0;
}

Submission Info

Judge Result