View Compilation Error

0_0_35830193_28951.cpp: In function 'void dijkstra()':
0_0_35830193_28951.cpp:54:38: error: 'a' was not declared in this scope
                 d[v] = d[x] + e[i].w;a
                                      ^
0_0_35830193_28951.cpp:55:36: error: expected primary-expression before ')' token
                 q.push(nod{v, d[v]});
                                    ^