Compilare: main.cpp: In function 'int main()': main.cpp:78:17: warning: 'yf' may be used uninitialized in this function [-Wmaybe-uninitialized] if (S[xf][yf]) { ~~~~~~~~^ main.cpp:78:17: warning: 'xf' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:76:28: warning: 'yd' may be used uninitialized in this function [-Wmaybe-uninitialized] lee(xd, yd, D, acces_D); ^ main.cpp:76:28: warning: 'xd' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:74:28: warning: 'ys' may be used uninitialized in this function [-Wmaybe-uninitialized] lee(xs, ys, S, acces_S); ^ main.cpp:74:28: warning: 'xs' may be used uninitialized in this function [-Wmaybe-uninitialized]