Compilare: user.cpp: In function ‘int main()’: user.cpp:89:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i>1) ^ user.cpp:109:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j>1) ^ user.cpp:129:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i<n) ^ user.cpp:149:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j<m) ^ user.cpp:172:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i>1) ^ user.cpp:192:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j>1) ^ user.cpp:212:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(i<n) ^ user.cpp:232:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j<m) ^