Eroare de compilare: main.cpp:14:16: error: ISO C++ forbids declaration of 'raph' with no type [-fpermissive] raph(int _n) : n(_n), m(1), source(0), sink(1), flow(0) {} ^ main.cpp: In member function 'int Graph::raph(int)': main.cpp:14:20: error: only constructors take member initializers raph(int _n) : n(_n), m(1), source(0), sink(1), flow(0) {} ^ main.cpp:14:62: warning: no return statement in function returning non-void [-Wreturn-type] raph(int _n) : n(_n), m(1), source(0), sink(1), flow(0) {} ^ main.cpp: In function 'int main()': main.cpp:70:15: error: reference to 'cin' is ambiguous int n, m; cin >> n >> m; ^~~ main.cpp:6:10: note: candidates are: std::ifstream cin ifstream cin("algola.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:71:14: error: no matching function for call to 'Graph::Graph(int&)' Graph g(n); ^ main.cpp:9:8: note: candidate: Graph::Graph() struct Graph ^~~~~ main.cpp:9:8: note: candidate expects 0 arguments, 1 provided main.cpp:9:8: note: candidate: Graph::Graph(const Graph&) main.cpp:9:8: note: no known conversion for argument 1 from 'int' to 'const Graph&' main.cpp:9:8: note: candidate: Graph::Graph(Graph&&) main.cpp:9:8: note: no known conversion for argument 1 from 'int' to 'Graph&&' main.cpp:77:18: error: reference to 'cin' is ambiguous int cap; cin >> cap; ^~~ main.cpp:6:10: note: candidates are: std::ifstream cin ifstream cin("algola.in"); ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:75:0, from main.cpp:1: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:84:9: error: reference to 'cout' is ambiguous cout << "0\n"; ^~~~ main.cpp:7:10: note: candidates are: std::ofstream cout ofstream cout("algola.out"); ^~~~ Non zero exit status: 1