View Compilation Error

0_0_36887044_8990.cpp: In function 'void dij(int)':
0_0_36887044_8990.cpp:32:19: error: expected unqualified-id before '[' token
         for (auto [to, w] : g[now]) {
                   ^
0_0_36887044_8990.cpp:32:19: error: expected ';' before '[' token
0_0_36887044_8990.cpp:32:20: error: 'to' was not declared in this scope
         for (auto [to, w] : g[now]) {
                    ^
0_0_36887044_8990.cpp:32:24: error: 'w' was not declared in this scope
         for (auto [to, w] : g[now]) {
                        ^
0_0_36887044_8990.cpp: In lambda function:
0_0_36887044_8990.cpp:32:27: error: expected '{' before ':' token
         for (auto [to, w] : g[now]) {
                           ^
0_0_36887044_8990.cpp: In function 'void dij(int)':
0_0_36887044_8990.cpp:32:27: error: expected ';' before ':' token
0_0_36887044_8990.cpp:32:27: error: expected primary-expression before ':' token
0_0_36887044_8990.cpp:32:27: error: expected ')' before ':' token
0_0_36887044_8990.cpp:32:27: error: expected primary-expression before ':' token