Compilare: user.cpp: In function ‘int main()’: user.cpp:33:13: warning: unused variable ‘i’ [-Wunused-variable] int N,T,i,j,sol; ^ user.cpp:33:15: warning: unused variable ‘j’ [-Wunused-variable] int N,T,i,j,sol; ^ In file included from /usr/include/string.h:642:0, from user.cpp:2: In function ‘void* memcpy(void*, const void*, size_t)’, inlined from ‘int main()’ at user.cpp:25:26: /usr/include/i386-linux-gnu/bits/string3.h:52:71: warning: call to void* __builtin___memcpy_chk(void*, const void*, unsigned int, unsigned int) will always overflow destination buffer [enabled by default] return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest)); ^