View Compilation Error

0_0_36661595_26154.cpp: In function 'void solve()':
0_0_36661595_26154.cpp:109:12: error: expected unqualified-id before '[' token
       auto [L,R]=find(c,t[i],mn,mx);
            ^
0_0_36661595_26154.cpp:110:22: error: 'L' was not declared in this scope
       id.insert(l[i]=L%n);
                      ^
0_0_36661595_26154.cpp:111:22: error: 'R' was not declared in this scope
       id.insert(r[i]=R%n);
                      ^
0_0_36661595_26154.cpp:116:10: error: expected unqualified-id before '[' token
     auto [L,R]=[&]()->pair<int,int>{
          ^
0_0_36661595_26154.cpp:175:1: error: expected '}' at end of input
 }
 ^
0_0_36661595_26154.cpp:175:1: error: expected '}' at end of input