View Compilation Error

0_0_26692510_14024.cpp: In function 'void inc(int, int, int)':
0_0_26692510_14024.cpp:45:30: error: 'add' was not declared in this scope
                 add(tree[t].l);
                              ^
0_0_26692510_14024.cpp:48:55: error: too few arguments to function 'void inc(int, int, int)'
                 if (tree[tree[t].ch[0]].Min == 1) inc();
                                                       ^
0_0_26692510_14024.cpp:39:6: note: declared here
 void inc(int t, int l, int r){
      ^