ACM-ICPC North America Qualifier 2014 Tractor

 1 // File Name: t.cpp
 2 // Author: darkdream
 3 // Created Time: 2015年03月14日 星期六 13时37分30秒
 4 
 5 #include<vector>
 6 #include<list>
 7 #include<map>
 8 #include<set>
 9 #include<deque>
10 #include<stack>
11 #include<bitset>
12 #include<algorithm>
13 #include<functional>
14 #include<numeric>
15 #include<utility>
16 #include<sstream>
17 #include<iostream>
18 #include<iomanip>
19 #include<cstdio>
20 #include<cmath>
21 #include<cstdlib>
22 #include<cstring>
23 #include<ctime>
24 #include<queue>
25 #define LL long long
26 
27 using namespace std;
28 int main(){
29   int n;
30   scanf("%d",&n);
31   int A,B;
32   for(int i = 1;i <= n;i++)
33   {
34      scanf("%d %d",&A,&B); 
35      int sum = 1 ; 
36      int t = 1; 
37      for(int i = 1;i <= A+B ;)
38      {
39          if(i <= A && i <= B)
40          {
41             sum += t*2; 
42          }else if(i > A && i <= B)
43          {
44              sum += t*2 - (i - A);
45          }else if(i <= A && i >= B)
46          {
47              sum += t*2 -(i -B);
48          }else{
49              sum += t*2 -(i-B) - (i-A);
50          }
51          t *= 2; 
52          i += t; 
53      }
54      printf("%d\n",sum);
55   }
56 return 0;
57 }