View Compilation Error

0_0_38113198_31049.cpp: In function 'void solve()':
0_0_38113198_31049.cpp:198:56: error: invalid use of 'auto'
   for (auto x : getTgCC(a, b, 1)) add(x.first, x.second);
                                                        ^
0_0_38113198_31049.cpp:199:56: error: invalid use of 'auto'
   for (auto x : getTgCC(a, b,-1)) add(x.first, x.second);
                                                        ^