View Compilation Error

0_0_30381159_15009.cpp:19:1: error: expected initializer before 'void'
 void pushup(int rt)
 ^
0_0_30381159_15009.cpp: In function 'void build(int, int, int)':
0_0_30381159_15009.cpp:27:3: error: 'add' was not declared in this scope
   add[rt]=0;
   ^
0_0_30381159_15009.cpp:34:11: error: 'pushup' was not declared in this scope
  pushup(rt);
           ^
0_0_30381159_15009.cpp: In function 'void pushdown(int, int, int)':
0_0_30381159_15009.cpp:38:5: error: 'add' was not declared in this scope
  if(add[rt])
     ^
0_0_30381159_15009.cpp: In function 'void updata(int, int, int, int, int, int)':
0_0_30381159_15009.cpp:50:3: error: 'add' was not declared in this scope
   add[rt]=c;
   ^
0_0_30381159_15009.cpp:58:11: error: 'pushup' was not declared in this scope
  pushup(rt);
           ^