View Compilation Error

0_0_39325969_14734.cpp: In function 'int dijkstra(int, int)':
0_0_39325969_14734.cpp:39:1: error: a function-definition is not allowed here before '{' token
   39 | {
      | ^
0_0_39325969_14734.cpp:45:1: error: a function-definition is not allowed here before '{' token
   45 | {
      | ^
0_0_39325969_14734.cpp:81:1: error: a function-definition is not allowed here before '{' token
   81 | {
      | ^