Compilare: main.cpp: In function 'int main()': main.cpp:101:7: warning: unused variable 'i' [-Wunused-variable] 101 | int i, j; | ^ main.cpp:101:10: warning: unused variable 'j' [-Wunused-variable] 101 | int i, j; | ^ main.cpp: In function 'bool verif(int, int, int)': main.cpp:84:6: warning: 'first.Pos::i' may be used uninitialized in this function [-Wmaybe-uninitialized] 84 | fil(i, j, r, c); | ~~~^~~~~~~~~~~~ main.cpp:84:6: warning: 'first.Pos::j' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:96:19: warning: 'last.Pos::j' may be used uninitialized in this function [-Wmaybe-uninitialized] 96 | return dist[i][j] == -1; | ~~~~~~~~~^ main.cpp:96:19: warning: 'last.Pos::i' may be used uninitialized in this function [-Wmaybe-uninitialized]