Compilare: user.cpp: In function ‘int main()’: user.cpp:80:29: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (x>mediana) ^ user.cpp:99:32: warning: statement has no effect [-Wunused-value] a[j][cc]; ^ user.cpp:121:29: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (x>mediana) ^