View Compilation Error

0_0_32978761_26878.cpp: In function 'void yspm::build(int, int, int)':
0_0_32978761_26878.cpp:32:31: error: 'id' was not declared in this scope
   if(l==r) return maxx(p)=val[id[l]],void();
                               ^
0_0_32978761_26878.cpp:32:43: error: return-statement with a value, in function returning 'void' [-fpermissive]
   if(l==r) return maxx(p)=val[id[l]],void();
                                           ^
0_0_32978761_26878.cpp: In function 'void yspm::dfs(int, int)':
0_0_32978761_26878.cpp:70:27: error: 'id' was not declared in this scope
   l[x]=tot; val[x]+=p[x]; id[tot]=x; 
                           ^