EOJ 1444 In Danger

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <cstring>
 4 #include <cmath>
 5 #include <algorithm>
 6 #include <queue>
 7 #include <stack>
 8 #include <vector>
 9 #include <string>
10 #include <set>
11 #include <cctype>
12 #include <cstdlib>
13 #include <map>
14 #define maxn 1000100
15 #define inf 0x3f3f3f3f
16 #define mod 9997
17 #define pi 3.1415926535898
18 #define LL long long 
19 using namespace std; 
20 
21 int a[30];
22 
23 int main(){
24     string s;
25     while (cin >> s){
26         if (s == "00e0") break;
27         int t = (s[0] - ‘0‘) * 10 + s[1] - ‘0‘;
28         int tmp = s[3] - ‘0‘;
29         while (tmp--)
30             t *= 10;
31 
32         int k = 1;
33         a[0] = 1;
34         while (t){
35             a[k++] = t%2;
36             t /= 2;
37         }
38         for (int i = k - 2; i >= 0; i--)
39             t = t * 2 + a[i]; 
40         cout << t << endl;
41     }
42     return 0;
43 }