View Compilation Error

0_0_30133914_3620.cpp:2:1: error: 'LL' does not name a type
 LL val[32*MAXN]; //点的值 
 ^
0_0_30133914_3620.cpp:3:11: error: 'MAXN' was not declared in this scope
 int ch[32*MAXN][2]; //边的值 
           ^
0_0_30133914_3620.cpp: In function 'void init()':
0_0_30133914_3620.cpp:8:5: error: 'ch' was not declared in this scope
     ch[0][0]=ch[0][1]=0;
     ^
0_0_30133914_3620.cpp: At global scope:
0_0_30133914_3620.cpp:11:13: error: variable or field 'insert' declared void
 void insert(LL x)
             ^
0_0_30133914_3620.cpp:11:13: error: 'LL' was not declared in this scope