Compilare: user.cpp: In function ‘int main()’: user.cpp:49:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if( !s.empty() ) ^ user.cpp:13:29: warning: unused variable ‘j’ [-Wunused-variable] int val, n, x[8200], i, j, minim = 8192, a[8200]; ^ user.cpp:13:46: warning: unused variable ‘a’ [-Wunused-variable] int val, n, x[8200], i, j, minim = 8192, a[8200]; ^