Eroare de compilare: user.cpp:4:40: error: ‘int log2 [100003]’ redeclared as different kind of symbol int a[100002],m[100002][50],log2[100003]; ^ 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 ‘int main()’: user.cpp:16:15: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i>>1]+1; ^ user.cpp:16:26: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i>>1]+1; ^ user.cpp:35:18: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript p=log2[nr]; ^