Compilare: main.cpp: In function 'int main()': main.cpp:69:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < a[el_current.ind].size(); ++j) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:73:132: warning: suggest parentheses around '&&' within '||' [-Wparentheses] dist[nod_current] == cost_current + dist[el_current.ind] && ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ index_array[nod_current] > el_current.minim)) ) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~