View Compilation Error

0_0_33176565_7435.cpp: In function 'void solve()':
0_0_33176565_7435.cpp:45:14: error: expected unqualified-id before '[' token
         auto [k, ts] = Q[i];
              ^
0_0_33176565_7435.cpp:48:35: error: 'k' was not declared in this scope
         double t = cs / (double)v[k];
                                   ^
0_0_33176565_7435.cpp:49:25: error: 'ts' was not declared in this scope
         t = std::min(t, ts - ct);
                         ^