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:453: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:533: warning: comparison between signed and unsigned integer expressions user.cpp:537: warning: comparison between signed and unsigned integer expressions user.cpp:573: warning: comparison between signed and unsigned integer expressions user.cpp:601: warning: comparison between signed and unsigned integer expressions user.cpp:517: warning: 'drumPastrat' may be used uninitialized in this function