【打表】HDOJ-2089-不要62

 1 #include<iostream>
 2 #include<cstring>
 3 using namespace std;
 4 int arry[1000001];
 5 int main(){
 6     long n,m,i;
 7     memset(arry,0,sizeof(arry));
 8     //打表 
 9     for(i = 1;i <= 1000001;i++){
10         int temp = i;
11         while(temp > 0){
12             if(temp % 10 == 4 || temp % 100 == 62)
13                 arry[i] = 1;            
14             temp /= 10;
15         }        
16     }
17     while(cin >> n >> m && (n||m)){
18         int ac = m - n + 1;
19         for(i = n;i <= m;i++){
20             if(arry[i] == 1)
21                 ac--;                
22         }
23         cout << ac << endl;
24     }
25     return 0;
26 }