Compilare: user.cpp: In function ‘std::string solve(char (*)[3], int, int)’: user.cpp:32:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[i][j+2] == '.') ^ user.cpp:40:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[i][j-1] == '.') ^ user.cpp:51:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[j+2][i] == '.') ^ user.cpp:59:23: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[j-1][i] == '.') ^ user.cpp:69:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[2][2] == '.') ^ user.cpp:75:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[0][0] == '.') ^ user.cpp:81:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[2][0] == '.') ^ user.cpp:87:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(x[0][2] == '.') ^ user.cpp:112:1: warning: control reaches end of non-void function [-Wreturn-type] } ^