Compilare: main.cpp: In function 'void dijkstra()': main.cpp:123:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[curent.dest].size();i++ ) ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dijkstra_heap()': main.cpp:162:23: 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:180:10: warning: unused variable 'j' [-Wunused-variable] int i,j,n,m,a,b,c; ^