View Compilation Error

0_0_38489998_29454.cpp: In function 'void bfs()':
0_0_38489998_29454.cpp:27:20: error: expected unqualified-id before '[' token
         for (auto &[v, w] : edge[u]) {
                    ^
0_0_38489998_29454.cpp:27:20: error: expected ';' before '[' token
0_0_38489998_29454.cpp:27:21: error: 'v' was not declared in this scope
         for (auto &[v, w] : edge[u]) {
                     ^
0_0_38489998_29454.cpp:27:24: error: 'w' was not declared in this scope
         for (auto &[v, w] : edge[u]) {
                        ^
0_0_38489998_29454.cpp: In lambda function:
0_0_38489998_29454.cpp:27:27: error: expected '{' before ':' token
         for (auto &[v, w] : edge[u]) {
                           ^
0_0_38489998_29454.cpp: In function 'void bfs()':
0_0_38489998_29454.cpp:27:27: error: expected ';' before ':' token
0_0_38489998_29454.cpp:27:27: error: expected primary-expression before ':' token
0_0_38489998_29454.cpp:27:27: error: expected ')' before ':' token
0_0_38489998_29454.cpp:27:27: error: expected primary-expression before ':' token