poj 2105 IP Address

 1 #include <cstdio>
 2 #include<algorithm>
 3 #include<iostream>
 4 #include<string>
 5 #include<cstring>
 6 #include<vector>
 7 using namespace std;
 8 int b[8]={128,64,32,16,8,4,2,1};
 9 int main(){
10     int n;
11     string s;
12     while(cin>>n){
13         while(n--){
14             cin>>s;
15             int i,j,k=0;
16             for(i=0;i<=31;){
17                 int sum=0;
18                 j=0;
19                 while(j<8){
20                     if(s[i]==‘1‘)
21                     sum+=b[i%8];
22                     i++;
23                     j++;
24                 }
25                 cout<<sum;
26                 if(k<3){
27                     cout<<‘.‘;
28                 }
29                 else{
30                     cout<<endl;
31                 }
32                 k++;
33             }
34         }
35     }
36     return 0;
37 }