Compilare: main.cpp: In function 'bool operator<(tip1, tip1)': main.cpp:13:31: warning: suggest parentheses around '&&' within '||' [-Wparentheses] return a.x>b.x || a.x==b.x && a.c>b.c ; ~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'void djk(int)': main.cpp:57:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[act.x].size();i++) ~^~~~~~~~~~~~~~~~