View Compilation Error

0_0_37958955_8254.cpp: In member function 'bool MCMF::spfa()':
0_0_37958955_8254.cpp:46:22: error: expected unqualified-id before '[' token
                 auto [ver, nxt, ff, ww] = edge[i];
                      ^
0_0_37958955_8254.cpp:47:21: error: 'ff' was not declared in this scope
                 if (ff > 0 && d[ver] > d[t] + ww)
                     ^
0_0_37958955_8254.cpp:47:33: error: 'ver' was not declared in this scope
                 if (ff > 0 && d[ver] > d[t] + ww)
                                 ^
0_0_37958955_8254.cpp:47:47: error: 'ww' was not declared in this scope
                 if (ff > 0 && d[ver] > d[t] + ww)
                                               ^