View Compilation Error

0_0_30501836_12653.cpp:13:7: error: 'LL' does not name a type
 const LL inf = 0x7777777777777777ll;
       ^
0_0_30501836_12653.cpp: In function 'long long int dist(Point, Point)':
0_0_30501836_12653.cpp:39:16: error: 'inf' was not declared in this scope
 return sum?sum:inf;
                ^
0_0_30501836_12653.cpp: In function 'long long int get_nearst(long long int, long long int, long long int, Point)':
0_0_30501836_12653.cpp:48:16: error: 'inf' was not declared in this scope
         return inf;
                ^
0_0_30501836_12653.cpp:52:19: error: 'inf' was not declared in this scope
     long long tmp=inf;
                   ^