Compilare: main.cpp: In function 'int daicstra(int)': main.cpp:89:9: warning: variable 'nr' set but not used [-Wunused-but-set-variable] int nr=0, im=0, lg=0, ox ,oc; ^~ main.cpp:89:21: warning: unused variable 'lg' [-Wunused-variable] int nr=0, im=0, lg=0, ox ,oc; ^~ main.cpp:113:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^