Compilare: main.cpp: In function 'double suma(std::priority_queue<std::pair<double, std::pair<int, int> > >, std::vector<int>*, std::vector<float>*)': main.cpp:40:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gr[x].size(); i++) ~~^~~~~~~~~~~~~~ main.cpp:54:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gr[x].size(); i++) ~~^~~~~~~~~~~~~~ main.cpp:67:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gr[y].size(); i++) ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:112:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < graf[x].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:88:9: warning: variable 'x_p' set but not used [-Wunused-but-set-variable] int x_p, y_p; ^~~ main.cpp:88:14: warning: variable 'y_p' set but not used [-Wunused-but-set-variable] int x_p, y_p; ^~~ main.cpp:89:12: warning: variable 'cost_p' set but not used [-Wunused-but-set-variable] double cost_p; ^~~~~~ main.cpp:93:52: warning: iteration 1005 invokes undefined behavior [-Waggressive-loop-optimizations] for(int i = 0; i <= MAX_N; i++) vizitat[i] = 0; ~~~~~~~~~~~^~~ main.cpp:93:26: note: within this loop for(int i = 0; i <= MAX_N; i++) vizitat[i] = 0; ^