View Compilation Error

0_0_35355102_16597.cpp: In function 'void Dijkstra(int*)':
0_0_35355102_16597.cpp:31:12: error: expected unqualified-id before '[' token
   for(auto [v,w]:G[u]){
            ^
0_0_35355102_16597.cpp:31:12: error: expected ';' before '[' token
0_0_35355102_16597.cpp:31:13: error: 'v' was not declared in this scope
   for(auto [v,w]:G[u]){
             ^
0_0_35355102_16597.cpp:31:15: error: 'w' was not declared in this scope
   for(auto [v,w]:G[u]){
               ^
0_0_35355102_16597.cpp: In lambda function:
0_0_35355102_16597.cpp:31:17: error: expected '{' before ':' token
   for(auto [v,w]:G[u]){
                 ^
0_0_35355102_16597.cpp: In function 'void Dijkstra(int*)':
0_0_35355102_16597.cpp:31:17: error: expected ';' before ':' token
0_0_35355102_16597.cpp:31:17: error: expected primary-expression before ':' token
0_0_35355102_16597.cpp:31:17: error: expected ')' before ':' token
0_0_35355102_16597.cpp:31:17: error: expected primary-expression before ':' token