Compilare: user.cpp: In member function ‘bool Room::operator<(const Room&) const’: user.cpp:26:14: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] else if ((i2 - i1 + 1) * (j2 - j1 + 1) == (R.i2 - R.i1 + 1) * (R.j2 - R.j1 + 1) and i1 <= R.i1 and j1 < R.j1) ^~ user.cpp:28:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ return false; ^~~~~~ user.cpp: In function ‘int main()’: user.cpp:76:36: warning: array subscript is below array bounds [-Warray-bounds] --F[B[i][j]]; ~~~~~~~~~^ user.cpp:76:36: warning: array subscript is below array bounds [-Warray-bounds]