Compilare: main.cpp: In function 'int main()': main.cpp:98:44: warning: 'yf' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<a[xf][yf]<<" "<<xf+1<<" "<<yf+1<<" "; ^~~ main.cpp:98:22: warning: 'xf' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<a[xf][yf]<<" "<<xf+1<<" "<<yf+1<<" "; ^~~ main.cpp:68:14: warning: 'yj' may be used uninitialized in this function [-Wmaybe-uninitialized] b[xj][yj]=1; ~~~~~~~~~^~ main.cpp:68:14: warning: 'xj' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:47:14: warning: 'yr' may be used uninitialized in this function [-Wmaybe-uninitialized] a[xr][yr]=1; ~~~~~~~~~^~ main.cpp:47:14: warning: 'xr' may be used uninitialized in this function [-Wmaybe-uninitialized]