Compilare: user.cpp: In function 'void dfsCV(std::vector<nod, std::allocator<nod> >, int, int, int)': user.cpp:122: warning: comparison between signed and unsigned integer expressions user.cpp:167: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void allPaths(std::vector<int, std::allocator<int> >, int, int)': user.cpp:251: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void dijkstra(std::vector<nod, std::allocator<nod> >, int, int, int)': user.cpp:303: warning: comparison between signed and unsigned integer expressions user.cpp:345: warning: comparison between signed and unsigned integer expressions user.cpp:362: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int isKey(int)': user.cpp:456: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:570: warning: comparison between signed and unsigned integer expressions user.cpp:574: warning: comparison between signed and unsigned integer expressions user.cpp:610: warning: comparison between signed and unsigned integer expressions user.cpp:638: warning: comparison between signed and unsigned integer expressions user.cpp:557: warning: unused variable 'pA' user.cpp:557: warning: unused variable 'pB' user.cpp:554: warning: 'drumPastrat' may be used uninitialized in this function