Compilare: main.cpp: In function 'void Bordare()': main.cpp:38:9: warning: unused variable 'i' [-Wunused-variable] int i , j; ^ main.cpp:38:13: warning: unused variable 'j' [-Wunused-variable] int i , j; ^ main.cpp: In function 'void Cautbin()': main.cpp:126:22: warning: variable 'val' set but not used [-Wunused-but-set-variable] int st, dr, mij, val; ^~~ main.cpp:132:17: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i; i <= n; i++) ^