Eroare de compilare: user.cpp: In function ‘const int abs(int)’: user.cpp:10:33: error: new declaration ‘const int abs(int)’ inline int const abs(int const x){return x > 0 ? x : -x;} ^ In file included from /usr/local/include/c++/4.8.0/cstdlib:72:0, from /usr/local/include/c++/4.8.0/ext/string_conversions.h:41, from /usr/local/include/c++/4.8.0/bits/basic_string.h:2817, from /usr/local/include/c++/4.8.0/string:52, from /usr/local/include/c++/4.8.0/bits/locale_classes.h:40, from /usr/local/include/c++/4.8.0/bits/ios_base.h:41, from /usr/local/include/c++/4.8.0/ios:42, from /usr/local/include/c++/4.8.0/istream:38, from /usr/local/include/c++/4.8.0/fstream:38, from user.cpp:1: /usr/include/stdlib.h:766:12: error: ambiguates old declaration ‘int abs(int)’ extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; ^ user.cpp: In function ‘void spread()’: user.cpp:67:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.cpp:67:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^