Submission #163631

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Source Code Expand

#include <sstream>
#include<stdlib.h>
#include <string>
#include<string.h>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include<math.h>
using namespace std;
typedef long long ll;
#define INF 100000000
#define EPS 0.000001
 
int main(){

	ll A, B;
	ll ans = 0;
	cin >> A >> B;

	for(ll i = A; i <= B; i++){
		bool flag = false;
		ll kari = i;
		while(true){
			if(kari%10 == 4 || kari%10 == 9){
				flag = true;
				break;
			}
			if(kari/10 == 0)
				break;
			kari /= 10;
		}

		if(flag)
			ans++;
	}

	cout << ans << endl;

	return 0;
 
}
 

Submission Info

Judge Result