In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp:44:2: error: 'vector' does not name a type; did you mean 'perror'?
  vector<vector<int>> dist;
  ^~~~~~
  perror
/in/shortestP2P.hpp: In member function 'void ShortestP2P::readGraph()':
/in/shortestP2P.hpp:12:3: error: 'dist' was not declared in this scope
   dist.assign(V, vector<int>(V, INF));
   ^~~~
/in/shortestP2P.hpp:12:3: note: suggested alternative: 'int'
   dist.assign(V, vector<int>(V, INF));
   ^~~~
   int
/in/shortestP2P.hpp:12:18: error: 'vector' was not declared in this scope
   dist.assign(V, vector<int>(V, INF));
                  ^~~~~~
/in/shortestP2P.hpp:12:18: note: suggested alternative:
In file included from /usr/include/c++/7/vector:64:0,
                 from /in/shortestP2P.hpp:1,
                 from /in/driver/main.cpp:1:
/usr/include/c++/7/bits/stl_vector.h:216:11: note:   'std::vector'
     class vector : protected _Vector_base<_Tp, _Alloc>
           ^~~~~~
In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp:12:25: error: expected primary-expression before 'int'
   dist.assign(V, vector<int>(V, INF));
                         ^~~
/in/shortestP2P.hpp: In member function 'void ShortestP2P::distance(unsigned int, unsigned int)':
/in/shortestP2P.hpp:34:7: error: 'dist' was not declared in this scope
   if (dist[A][B] == INF) {
       ^~~~
/in/shortestP2P.hpp:34:7: note: suggested alternative: 'int'
   if (dist[A][B] == INF) {
       ^~~~
       int
/in/shortestP2P.hpp: In member function 'bool ShortestP2P::floydWarshall()':
/in/shortestP2P.hpp:49:10: error: 'dist' was not declared in this scope
      if (dist[i][k] != INF && dist[k][j] != INF && dist[i][k] + dist[k][j] < dist[i][j]) {
          ^~~~
/in/shortestP2P.hpp:49:10: note: suggested alternative: 'int'
      if (dist[i][k] != INF && dist[k][j] != INF && dist[i][k] + dist[k][j] < dist[i][j]) {
          ^~~~
          int
/in/shortestP2P.hpp:54:8: error: 'dist' was not declared in this scope
    if (dist[k][k] < 0) {
        ^~~~
/in/shortestP2P.hpp:54:8: note: suggested alternative: 'int'
    if (dist[k][k] < 0) {
        ^~~~
        int
/in/driver/main.cpp: In function 'int main()':
/in/driver/main.cpp:11:2: error: 'cin' was not declared in this scope
  cin >> A;
  ^~~
/in/driver/main.cpp:11:2: note: suggested alternative: 'main'
  cin >> A;
  ^~~
  main