Submission #162928

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Source Code Expand

#include<iostream>
#include<sstream>
using namespace std;
#define times(N) for(int n = 0; n < N; n++)
#define times2(N1, N2) for(int i =0; i<N1; i++) for(int j=0; j<N2;j++)

string convertInt(int number)
{
   stringstream ss;//create a stringstream
   ss << number;//add number to the stream
   return ss.str();//return a string with the contents of the stream
}

int main() {
  int n,m;
  cin >> n >> m;

  if(n > m) swap(n, m);
  string str;
  int count = 0;
  for(int i = n; n <= m; n++) {
    str = convertInt(n);
    if(str.find('4', 0) != string::npos || str.find('9', 0) != string::npos)
      count++;
  }

  cout << count << endl;
 return 0;
}

Submission Info

Judge Result