Compilare: user.cpp: In function 'void bellman_ford()': user.cpp:98: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int dijkstra()': user.cpp:168: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:234: warning: 'nrp' is used uninitialized in this function user.cpp:222: note: 'nrp' was declared here user.cpp:235: warning: 'cost' is used uninitialized in this function user.cpp:222: note: 'cost' was declared here