Problem	dijkstra
User	Ush
Submission Time	2023-11-15 11:15:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

dijkstra.cpp: In function ‘int32_t main()’:
dijkstra.cpp:6:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
6 | cin >> V >> E;
| ^~~
| std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
from dijkstra.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
dijkstra.cpp:8:5: error: ‘vector’ was not declared in this scope
8 | vector<vector<PII>> graph(V + 1);
| ^~~~~~
dijkstra.cpp:8:5: note: suggested alternatives:
In file included from /usr/include/c++/9/vector:67,
from /usr/include/c++/9/functional:62,
from /usr/include/c++/9/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/9/algorithm:71,
from /usr/include/x86_64-li