View Compilation Error

0_0_17953863_14748.cpp: In function 'void work()':
0_0_17953863_14748.cpp:180:32: error: 'getlca' was not declared in this scope
     int x=_,y=__,LCA=getlca(x,y); \
                                ^
0_0_17953863_14748.cpp:205:9: note: in expansion of macro 'gao'
         gao(L,q[i].u); gao(R,q[i].v);
         ^
0_0_17953863_14748.cpp:180:32: error: 'getlca' was not declared in this scope
     int x=_,y=__,LCA=getlca(x,y); \
                                ^
0_0_17953863_14748.cpp:205:24: note: in expansion of macro 'gao'
         gao(L,q[i].u); gao(R,q[i].v);
                        ^
0_0_17953863_14748.cpp:207:23: error: 'getlca' was not declared in this scope
         LCA=getlca(L,R); sum[a[v[LCA]]++]-=V[LCA]; sum[a[v[LCA]]]+=V[LCA];
                       ^