View Compilation Error

0_0_37650435_269.cpp: In function 'bool dijkstra()':
0_0_37650435_269.cpp:29:14: error: expected unqualified-id before '[' token
         auto [sum,x] = p.top();
              ^
0_0_37650435_269.cpp:31:14: error: 'x' was not declared in this scope
         if(v[x])continue;
              ^
0_0_37650435_269.cpp:32:11: error: 'x' was not declared in this scope
         v[x]=1;
           ^
0_0_37650435_269.cpp:36:18: error: expected unqualified-id before '[' token
             auto [a,b,c]=e[i];
                  ^
0_0_37650435_269.cpp:37:18: error: 'a' was not declared in this scope
             ll y=a;
                  ^
0_0_37650435_269.cpp:38:24: error: 'b' was not declared in this scope
             if(y==x) y=b;
                        ^
0_0_37650435_269.cpp:40:21: error: 'c' was not declared in this scope
             if(d[y]>c)
                     ^