Submission #162577

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Source Code Expand

#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
#include <functional>
#include <cstdio>
#include <cstdlib>
#include <cmath>
using namespace std;
class Main{
public:
  int start, end;
  int i, j;
  int count=0;
  void solve(){
    cin >> start >> end;
    if(end > 10000)return;
    for(i=start; i<=end; i++){
      j=i;
      for(;j > 0; j /= 10){
	if(j % 10 == 4 || j % 10 == 9){
	  ++count;
	  break;
	}
      }
    }
    cout << count << endl;
  }
};

int main(){
  Main __Main;
  __Main.solve();
  
  return 0;
}

Submission Info

Judge Result