Compilare: main.cpp: In function 'int main()': main.cpp:17:9: warning: unused variable 't' [-Wunused-variable] int t,m,s,i,x,y,c; ^ main.cpp:17:13: warning: unused variable 's' [-Wunused-variable] int t,m,s,i,x,y,c; ^ main.cpp: In function 'void djk(int)': main.cpp:37:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[s].size();i++) ~^~~~~~~~~~~~ main.cpp:49:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:33:15: warning: variable 'cost' set but not used [-Wunused-but-set-variable] int i,nod,cost; ^~~~