Eroare de compilare: user.cpp:10:15: error: ‘int log2 [100000]’ redeclared as different kind of symbol int log2[MAX_N]; ^ In file included from /usr/include/features.h:346:0, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/local/include/c++/4.8.0/i686-pc-linux-gnu/bits/c++config.h:420, from /usr/local/include/c++/4.8.0/cstdio:41, from user.cpp:1: /usr/include/bits/mathcalls.h:145:1: error: previous declaration of ‘double log2(double)’ __MATHCALL (log2,, (_Mdouble_ __x)); ^ user.cpp: In function ‘void pregen_log2(int)’: user.cpp:30:11: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[1] = 0; ^ user.cpp:32:15: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i >> 1] + 1; ^ user.cpp:32:30: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i] = log2[i >> 1] + 1; ^ user.cpp: In function ‘int main()’: user.cpp:50:40: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript int len = log2[right - left + 1]; ^