Eroare de compilare: user.cpp:9:27: error: ‘int log2 [100009]’ redeclared as different kind of symbol int A[100009], log2[100009]; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iosfwd:38, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:146:1: error: previous declaration of ‘double log2(double)’ __MATHCALL (log2,, (_Mdouble_ __x)); ^ user.cpp: In function ‘void logaritimi()’: user.cpp:40:15: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i/2]+1; ^ user.cpp:40:25: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript log2[i]=log2[i/2]+1; ^ user.cpp: In function ‘int RMQ(int, int)’: user.cpp:55:21: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript int k=log2[y-x+1]; ^ user.cpp: In function ‘void citire()’: user.cpp:25:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d\n", &n, &m); ^ user.cpp:27:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &A[i]); ^ user.cpp:31:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d\n", &x, &y); ^