Eroare de compilare: main.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("tris.in"); ^ main.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type ofstream cout("tris.out"); ^ main.cpp: In function 'void solve(int)': main.cpp:14:31: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz][x]=tris[++poz][x]=tris[poz++][x+1]=p++; ^~~~~ main.cpp:15:40: warning: operation on 'poz' may be undefined [-Wsequence-point] else tris[poz][x+1]=tris[++poz][x+1]=tris[poz++][x]=p++; ^~~~~ main.cpp:18:31: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz][x]=tris[++poz][x]=tris[poz++][x-1]=p++; ^~~~~ main.cpp:19:36: warning: operation on 'poz' may be undefined [-Wsequence-point] else tris[poz][x-1]=tris[++poz][x-1]=tris[poz++][x]=p++; ^~~~~ main.cpp:24:17: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz++][x]=tris[poz++][x]=p++, b--,ok=0; ~~~^~ main.cpp:27:30: warning: operation on 'poz' may be undefined [-Wsequence-point] tris[poz++][x]=tris[poz++][x]=tris[poz++][x]=p++, c--,ok=0; ~~~^~ main.cpp: In function 'int main()': main.cpp:32:3: error: reference to 'cin' is ambiguous cin>>a>>b>>c>>d; ^~~ main.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("tris.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:54:3: error: reference to 'cout' is ambiguous cout<<rez<<' '<<5<<'\n'; ^~~~ main.cpp:6:10: note: candidates are: <typeprefixerror>cout ofstream cout("tris.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ main.cpp:57:7: error: reference to 'cout' is ambiguous cout<<tris[i][j]<<' '; ^~~~ main.cpp:6:10: note: candidates are: <typeprefixerror>cout Non zero exit status: 1