0_0_39194260_5064.cpp: In function 'void dfs(int, int)':
0_0_39194260_5064.cpp:33:29: error: 'val' was not declared in this scope
33 | insert(rt[u],rt[fa],val[u]);
| ^~~
0_0_39194260_5064.cpp: In function 'void query(int, int, int, int)':
0_0_39194260_5064.cpp:69:17: error: 'val' was not declared in this scope
69 | int res=val[f]^a;
| ^~~
0_0_39194260_5064.cpp:69:24: error: 'a' was not declared in this scope
69 | int res=val[f]^a;
| ^
0_0_39194260_5064.cpp:72:21: error: 'd' was not declared in this scope
72 | int b=(val>>d)&1;
| ^
0_0_39194260_5064.cpp:86:19: error: return-statement with a value, in function returning 'void' [-fpermissive]
86 | return max(ans,res);
| ~~~^~~~~~~~~
0_0_39194260_5064.cpp: In function 'int main()':
0_0_39194260_5064.cpp:93:50: error: 'val' was not declared in this scope
93 | for(int i=1;i<=n;i++)scanf("%d",&val[i]);
| ^~~
0_0_39194260_5064.cpp:98:25: error: 'add' was not declared in this scope; did you mean 'std::filesystem::perm_options::add'?
98 | add(x,y);
| ^~~
| std::filesystem::perm_options::add
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/filesystem:46,
from .\stdc++.h:200:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/fs_fwd.h:211:7: note: 'std::filesystem::perm_options::add' declared here
211 | add = 0x2,
| ^~~
0_0_39194260_5064.cpp:106:32: error: 'lac' was not declared in this scope; did you mean 'lca'?
106 | int fa=lac(x,y);
| ^~~
| lca
0_0_39194260_5064.cpp:107:44: error: invalid use of void expression
107 | printf("%d\n",query(x,y,fa,z));
| ~~~~~^~~~~~~~~~
|