Compilare: user.cpp: In function ‘int main()’: user.cpp:99:9: warning: unused variable ‘a’ [-Wunused-variable] int a, b; ^ user.cpp:99:12: warning: unused variable ‘b’ [-Wunused-variable] int a, b; ^ user.cpp: In function ‘void rezolva()’: user.cpp:74:36: warning: ‘rest’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << cost[x][y][index[rest]] << '\n'; ^ user.cpp:74:36: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:74:36: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized]