Compilare: main.cpp: In function 'void Read()': main.cpp:24:11: warning: unused variable 'j' [-Wunused-variable] int i,j,x,y,t,e; ^ main.cpp: In function 'int Dijk(int)': main.cpp:56:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i < Ad[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp:43:9: warning: unused variable 'initial' [-Wunused-variable] int initial=energy,wati,wati2; ^~~~~~~ main.cpp:44:15: warning: unused variable 'j' [-Wunused-variable] int nod,i,j; ^ main.cpp:45:9: warning: unused variable 'minim' [-Wunused-variable] int minim=INF; ^~~~~