Compilare: main.cpp: In function 'int dijkstra(int)': main.cpp:133:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[curent.dest].size();i++ ){ ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int dijkstra_heap(int)': main.cpp:180:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[curent.dest].size();i++ ){ ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:201:10: warning: unused variable 'j' [-Wunused-variable] int i,j,n,m,a,b,c; ^